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Properties of broadband depth-graded multilayer mirrors for EUV optical systems
A. E. Yakshin, I. V. Kozhevnikov, E. Zoethout, E. Louis, and F. Bijkerk »View Author Affiliations
1FOM-Institute for Plasma Physics Rijnhuizen, NL-3430 BE Nieuwegein, The Netherlands
2Institute of Crystallography, Leninsky prospect 59, Moscow 119333, Russia
3also at MESA + Institute for Nanotechnology, University of Twente, The Netherlands
*Corresponding author: yakshin@rijnhuizen.nl
Optics Express, Vol. 18, Issue 7, pp. 6957-6971 (2010)
http://dx.doi.org/10.1364/OE.18.006957
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Abstract
The optical properties of a-periodic, depth-graded multilayer mirrors operating at 13.5 nm wavelength are investigated using different compositions and designs to provide a constant reflectivity over an essentially wider angular range than periodic multilayers. A reflectivity of up to about 60% is achieved in these calculation in the [0, 18°] range of the angle of incidence for the structures without roughness. The effects of different physical and technological factors (interfacial roughness, natural interlayers, number of bi-layers, minimum layer thickness, inaccuracy of optical constants, and thickness errors) are discussed. The results from an experiment on the fabrication of a depth-graded Mo/Si multilayer mirror with a wide angular bandpass in the [0, 16°] range are presented and analyzed.
© 2010 OSA
OCIS Codes
(230.0230) Optical devices : Optical devices
(230.4170) Optical devices : Multilayers
(310.0310) Thin films : Thin films
(340.0340) X-ray optics : X-ray optics
(340.7480) X-ray optics : X-rays, soft x-rays, extreme ultraviolet (EUV)
(310.4165) Thin films : Multilayer design
ToC Category:
Thin Films
History
Original Manuscript: January 22, 2010
Revised Manuscript: March 11, 2010
Manuscript Accepted: March 11, 2010
Published: March 19, 2010
Citation
A. E. Yakshin, I. V. Kozhevnikov, E. Zoethout, E. Louis, and F. Bijkerk, "Properties of broadband depth-graded multilayer mirrors for EUV optical systems," Opt. Express 18, 6957-6971 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-7-6957
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References
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- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- J. Tümmler, H. Blume, G. Brandt, J. Eden, B. Meyer, H. Scherr, F. Scholz, and G. Ulm, “Characterization of the PTB EUV reflectometry facility for large EUVL optical components,” Proc. SPIE 5037, 265–273 (2003).
- S. Braun, H. Mai, M. Moss, R. Scholz, and A. Leson, “Mo/Si Multilayers with Different Barrier Layers for Applications as Extreme Ultraviolet Mirrors,” Jpn. J. Appl. Phys. 41(Part 1, No. 6B), 4074–4081 (2002).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- K. D. Joensen, P. Voutov, A. Szentgyorgyi, J. Roll, P. Gorenstein, P. Hoghoj, and F. E. Christensen, “Design of grazing-incidence multilayer supermirrors for hard-x-ray reflectors,” Appl. Opt. 34(34), 7935–7944 (1995). [PubMed]
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- J. Tümmler, H. Blume, G. Brandt, J. Eden, B. Meyer, H. Scherr, F. Scholz, and G. Ulm, “Characterization of the PTB EUV reflectometry facility for large EUVL optical components,” Proc. SPIE 5037, 265–273 (2003).
- J. M. Slaughter, A. Shapiro, P. A. Kearney, and C. M. Falco, “Growth of molybdenum on silicon: Structure and interface formation,” Phys. Rev. B 44(8), 3854–3863 (1991).
- A. V. Vinogradov and R. M. Faschenko, “An approach to the theory of X-ray multilayers with graded period,” Nucl. Instrum. Methods Phys. Res. A 448(1-2), 142–146 (2000).
- S. Yulin, T. Feigl, T. Kuhlmann, N. Kaiser, A. I. Fedorenko, V. V. Kondratenko, O. V. Poltseva, V. A. Sevryukova, A. Yu. Zolotaryov, and E. N. Zubarev, “Interlayer transition zones in Mo/Si superlattices,” J. Appl. Phys. 92(3), 1216–1220 (2002).
- T. Feigl, S. Yulin, N. Benoit, and N. Kaiser, “EUV multilayer optics,” Microelectron. Eng. 83(4-9), 703–706 (2006).
- S. Yulin, T. Kuhlmann, T. Feigl, and N. Kaiser, “Spectral reflectance tuning of EUV mirrors for metrology applications,” Proc. SPIE 5037, 286–293 (2003).
- T. Kuhlmann, S. A. Yulin, T. Feigl, N. Kaiser, H. Bernitzki, and H. Lauth, “Design and fabrication of broadband EUV multilayer mirrors,” Proc. SPIE 4688, 509 (2002).
- S. Yulin, T. Feigl, T. Kuhlmann, N. Kaiser, A. I. Fedorenko, V. V. Kondratenko, O. V. Poltseva, V. A. Sevryukova, A. Yu. Zolotaryov, and E. N. Zubarev, “Interlayer transition zones in Mo/Si superlattices,” J. Appl. Phys. 92(3), 1216–1220 (2002).
- N. Kaiser, S. Yulin, and T. Feigl, “Si-based multilayers with high thermal stability,” Proc. SPIE 4146, 91 (2000).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- K. D. Joensen, P. Gorenstein, F. E. Christensen, P. Høghøj, E. Ziegler, J. Susini, A. Freund, and J. Wood, “Multilayer mirrors: broad-band reflection coatings for the 15 to 100 keV range,” Proc. SPIE 2253, 299–308 (1994).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- K. D. Joensen, P. Voutov, A. Szentgyorgyi, J. Roll, P. Gorenstein, P. Hoghoj, and F. E. Christensen, “Design of grazing-incidence multilayer supermirrors for hard-x-ray reflectors,” Appl. Opt. 34(34), 7935–7944 (1995). [PubMed]
- K. D. Joensen, P. Gorenstein, F. E. Christensen, P. Høghøj, E. Ziegler, J. Susini, A. Freund, and J. Wood, “Multilayer mirrors: broad-band reflection coatings for the 15 to 100 keV range,” Proc. SPIE 2253, 299–308 (1994).
- A. E. Yakshin, E. Louis, P. C. Gorts, E. L. G. Maas, and F. Bijkerk, “Determination of the layered structure in Mo/Si multilayers by grazing incidence X-ray reflectometry,” Physica B 283(1-3), 143–148 (2000).
- A. Gottwald, U. Kroth, M. Letz, H. Schoeppe, and M. Richter, “High-accuracy VUV reflectometry at selectable sample temperatures,” Proc. SPIE 5538, 157–164 (2004).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
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- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- E. Spiller, “Characterization of Multilayer Coatings by X-Ray Reflection,” Rev. Phys. Appl. (Paris) 23(10), 1687–1700 (1988).
- S. Bajt, D. G. Stearns, and P. A. Kearney, “Investigation of the amorphous-tocrystalline transition in Mo/Si multilayers,” J. Appl. Phys. 90(2), 1017–1025 (2001).
- S. P. Vernon, D. G. Stearns, and R. S. Rosen, “Chirped multilayer coatings for increased x-ray throughput,” Opt. Lett. 18(9), 672–674 (1993). [PubMed]
- D. G. Stearns, R. S. Rosen, and S. P. Vernon, “Fabrication of high-reflectance Mo-Si multilayer mirrors by planar-magnetron sputtering,” J. Vac. Sci. Technol. A 9(5), 2662–2669 (1991).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- K. D. Joensen, P. Gorenstein, F. E. Christensen, P. Høghøj, E. Ziegler, J. Susini, A. Freund, and J. Wood, “Multilayer mirrors: broad-band reflection coatings for the 15 to 100 keV range,” Proc. SPIE 2253, 299–308 (1994).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- M. J. H. Kessels, F. Bijkerk, F. D. Tichelaar, and J. Verhoeven, “Determination of in-depth density profiles of multilayer structures,” J. Appl. Phys. 97(9Issue 9), 093513 (2005).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- J. Tümmler, H. Blume, G. Brandt, J. Eden, B. Meyer, H. Scherr, F. Scholz, and G. Ulm, “Characterization of the PTB EUV reflectometry facility for large EUVL optical components,” Proc. SPIE 5037, 265–273 (2003).
- J. Tümmler, H. Blume, G. Brandt, J. Eden, B. Meyer, H. Scherr, F. Scholz, and G. Ulm, “Characterization of the PTB EUV reflectometry facility for large EUVL optical components,” Proc. SPIE 5037, 265–273 (2003).
- I. Nedelcu, R. W. E. van de Kruijs, A. E. Yakshin, and F. Bijkerk, “Thermally enhanced interdiffusion in Mo/Si multilayers,” J. Appl. Phys. 103(8Issue 8), 083549 (2008).
- I. Nedelcu, R. W. E. van de Kruijs, A. E. Yakshin, and F. Bijkerk, “Temperature-dependent nanocrystal formation in Mo/Si multilayers,” Phys. Rev. B 76(24Issue 24), 245404 (2007).
- R. Schlatmann, S. Lu, J. Verhoeven, E. J. Puik, and M. J. van der Wiel, “Modification by Ar and Kr ion bombardment of Mo/Si x-ray multilayers,” Appl. Surf. Sci. 78(2), 147–157 (1994).
- E. Louis, H.-J. Voorma, N. B. Koster, L. Shmaenok, F. Bijkerk, R. Schlatmann, J. Verhoeven, Yu. Ya. Platonov, G. E. van Dorssen, and H. A. Padmore, “Enhancement of reflectivity of multilayer mirrors for soft x-ray projection lithography by temperature optimization and ion bombardment,” Microelectron. Eng. 23(1-4), 215–218 (1994).
- M. J. H. Kessels, F. Bijkerk, F. D. Tichelaar, and J. Verhoeven, “Determination of in-depth density profiles of multilayer structures,” J. Appl. Phys. 97(9Issue 9), 093513 (2005).
- P. van Loevezijn, R. Schlatmann, J. Verhoeven, B. A. van Tiggelen, and E. M. Gullikson, “Numerical and experimental study of disordered multilayers for broadband X-ray reflection,” Appl. Opt. 35(19), 3614–3619 (1996). [PubMed]
- E. Louis, H.-J. Voorma, N. B. Koster, L. Shmaenok, F. Bijkerk, R. Schlatmann, J. Verhoeven, Yu. Ya. Platonov, G. E. van Dorssen, and H. A. Padmore, “Enhancement of reflectivity of multilayer mirrors for soft x-ray projection lithography by temperature optimization and ion bombardment,” Microelectron. Eng. 23(1-4), 215–218 (1994).
- R. Schlatmann, S. Lu, J. Verhoeven, E. J. Puik, and M. J. van der Wiel, “Modification by Ar and Kr ion bombardment of Mo/Si x-ray multilayers,” Appl. Surf. Sci. 78(2), 147–157 (1994).
- S. P. Vernon, D. G. Stearns, and R. S. Rosen, “Chirped multilayer coatings for increased x-ray throughput,” Opt. Lett. 18(9), 672–674 (1993). [PubMed]
- D. G. Stearns, R. S. Rosen, and S. P. Vernon, “Fabrication of high-reflectance Mo-Si multilayer mirrors by planar-magnetron sputtering,” J. Vac. Sci. Technol. A 9(5), 2662–2669 (1991).
- A. V. Vinogradov and R. M. Faschenko, “An approach to the theory of X-ray multilayers with graded period,” Nucl. Instrum. Methods Phys. Res. A 448(1-2), 142–146 (2000).
- I. Vkozhevnikov, I. Nbukreeva, and E. Ziegler, “Design of x-ray supermirrors,” Nucl. Instrum. Methods Phys. Res. A 460(2-3), 424–443 (2001).
- E. Louis, H.-J. Voorma, N. B. Koster, L. Shmaenok, F. Bijkerk, R. Schlatmann, J. Verhoeven, Yu. Ya. Platonov, G. E. van Dorssen, and H. A. Padmore, “Enhancement of reflectivity of multilayer mirrors for soft x-ray projection lithography by temperature optimization and ion bombardment,” Microelectron. Eng. 23(1-4), 215–218 (1994).
- Z. Wang and A. G. Michette, “Optimization of depth-graded multilayer designs for EUV and X-ray optics,” Proc. SPIE 4145, 243–253 (2001).
- K. D. Joensen, P. Gorenstein, F. E. Christensen, P. Høghøj, E. Ziegler, J. Susini, A. Freund, and J. Wood, “Multilayer mirrors: broad-band reflection coatings for the 15 to 100 keV range,” Proc. SPIE 2253, 299–308 (1994).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- I. Nedelcu, R. W. E. van de Kruijs, A. E. Yakshin, and F. Bijkerk, “Thermally enhanced interdiffusion in Mo/Si multilayers,” J. Appl. Phys. 103(8Issue 8), 083549 (2008).
- I. Nedelcu, R. W. E. van de Kruijs, A. E. Yakshin, and F. Bijkerk, “Temperature-dependent nanocrystal formation in Mo/Si multilayers,” Phys. Rev. B 76(24Issue 24), 245404 (2007).
- A. E. Yakshin, E. Louis, P. C. Gorts, E. L. G. Maas, and F. Bijkerk, “Determination of the layered structure in Mo/Si multilayers by grazing incidence X-ray reflectometry,” Physica B 283(1-3), 143–148 (2000).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
Yeh, P.
Yulin, S.
- T. Feigl, S. Yulin, N. Benoit, and N. Kaiser, “EUV multilayer optics,” Microelectron. Eng. 83(4-9), 703–706 (2006).
- S. Yulin, T. Kuhlmann, T. Feigl, and N. Kaiser, “Spectral reflectance tuning of EUV mirrors for metrology applications,” Proc. SPIE 5037, 286–293 (2003).
- S. Yulin, T. Feigl, T. Kuhlmann, N. Kaiser, A. I. Fedorenko, V. V. Kondratenko, O. V. Poltseva, V. A. Sevryukova, A. Yu. Zolotaryov, and E. N. Zubarev, “Interlayer transition zones in Mo/Si superlattices,” J. Appl. Phys. 92(3), 1216–1220 (2002).
- N. Kaiser, S. Yulin, and T. Feigl, “Si-based multilayers with high thermal stability,” Proc. SPIE 4146, 91 (2000).
- T. Kuhlmann, S. A. Yulin, T. Feigl, N. Kaiser, H. Bernitzki, and H. Lauth, “Design and fabrication of broadband EUV multilayer mirrors,” Proc. SPIE 4688, 509 (2002).
- C. Morawe, E. Ziegler, J.-C. Peffen, and I. V. Kozhevnikov, “Design and fabrication of depth-graded x-ray multilayers,” Nucl. Instrum. Methods Phys. Res. A 493(3), 189–198 (2002).
- I. Vkozhevnikov, I. Nbukreeva, and E. Ziegler, “Design of x-ray supermirrors,” Nucl. Instrum. Methods Phys. Res. A 460(2-3), 424–443 (2001).
- K. D. Joensen, P. Gorenstein, F. E. Christensen, P. Høghøj, E. Ziegler, J. Susini, A. Freund, and J. Wood, “Multilayer mirrors: broad-band reflection coatings for the 15 to 100 keV range,” Proc. SPIE 2253, 299–308 (1994).
- S. Yulin, T. Feigl, T. Kuhlmann, N. Kaiser, A. I. Fedorenko, V. V. Kondratenko, O. V. Poltseva, V. A. Sevryukova, A. Yu. Zolotaryov, and E. N. Zubarev, “Interlayer transition zones in Mo/Si superlattices,” J. Appl. Phys. 92(3), 1216–1220 (2002).
- S. Yulin, T. Feigl, T. Kuhlmann, N. Kaiser, A. I. Fedorenko, V. V. Kondratenko, O. V. Poltseva, V. A. Sevryukova, A. Yu. Zolotaryov, and E. N. Zubarev, “Interlayer transition zones in Mo/Si superlattices,” J. Appl. Phys. 92(3), 1216–1220 (2002).
Appl. Opt.
- P. Lee, “Uniform and graded multilayers as x-ray optical elements,” Appl. Opt. 22(8), 1241–1246 (1983). [PubMed]
- K. D. Joensen, P. Voutov, A. Szentgyorgyi, J. Roll, P. Gorenstein, P. Hoghoj, and F. E. Christensen, “Design of grazing-incidence multilayer supermirrors for hard-x-ray reflectors,” Appl. Opt. 34(34), 7935–7944 (1995). [PubMed]
- P. van Loevezijn, R. Schlatmann, J. Verhoeven, B. A. van Tiggelen, and E. M. Gullikson, “Numerical and experimental study of disordered multilayers for broadband X-ray reflection,” Appl. Opt. 35(19), 3614–3619 (1996). [PubMed]
Appl. Surf. Sci.
- R. Schlatmann, S. Lu, J. Verhoeven, E. J. Puik, and M. J. van der Wiel, “Modification by Ar and Kr ion bombardment of Mo/Si x-ray multilayers,” Appl. Surf. Sci. 78(2), 147–157 (1994).
J. Appl. Phys.
- M. J. H. Kessels, F. Bijkerk, F. D. Tichelaar, and J. Verhoeven, “Determination of in-depth density profiles of multilayer structures,” J. Appl. Phys. 97(9Issue 9), 093513 (2005).
- I. Nedelcu, R. W. E. van de Kruijs, A. E. Yakshin, and F. Bijkerk, “Thermally enhanced interdiffusion in Mo/Si multilayers,” J. Appl. Phys. 103(8Issue 8), 083549 (2008).
- S. Bajt, D. G. Stearns, and P. A. Kearney, “Investigation of the amorphous-tocrystalline transition in Mo/Si multilayers,” J. Appl. Phys. 90(2), 1017–1025 (2001).
- S. Yulin, T. Feigl, T. Kuhlmann, N. Kaiser, A. I. Fedorenko, V. V. Kondratenko, O. V. Poltseva, V. A. Sevryukova, A. Yu. Zolotaryov, and E. N. Zubarev, “Interlayer transition zones in Mo/Si superlattices,” J. Appl. Phys. 92(3), 1216–1220 (2002).
J. Opt. Soc. Am.
J. Vac. Sci. Technol. A
- D. G. Stearns, R. S. Rosen, and S. P. Vernon, “Fabrication of high-reflectance Mo-Si multilayer mirrors by planar-magnetron sputtering,” J. Vac. Sci. Technol. A 9(5), 2662–2669 (1991).
Jpn. J. Appl. Phys.
- S. Braun, H. Mai, M. Moss, R. Scholz, and A. Leson, “Mo/Si Multilayers with Different Barrier Layers for Applications as Extreme Ultraviolet Mirrors,” Jpn. J. Appl. Phys. 41(Part 1, No. 6B), 4074–4081 (2002).
Microelectron. Eng.
- E. Louis, H.-J. Voorma, N. B. Koster, L. Shmaenok, F. Bijkerk, R. Schlatmann, J. Verhoeven, Yu. Ya. Platonov, G. E. van Dorssen, and H. A. Padmore, “Enhancement of reflectivity of multilayer mirrors for soft x-ray projection lithography by temperature optimization and ion bombardment,” Microelectron. Eng. 23(1-4), 215–218 (1994).
- T. Feigl, S. Yulin, N. Benoit, and N. Kaiser, “EUV multilayer optics,” Microelectron. Eng. 83(4-9), 703–706 (2006).
Nucl. Instrum. Methods Phys. Res. A
- I. Vkozhevnikov, I. Nbukreeva, and E. Ziegler, “Design of x-ray supermirrors,” Nucl. Instrum. Methods Phys. Res. A 460(2-3), 424–443 (2001).
- C. Morawe, E. Ziegler, J.-C. Peffen, and I. V. Kozhevnikov, “Design and fabrication of depth-graded x-ray multilayers,” Nucl. Instrum. Methods Phys. Res. A 493(3), 189–198 (2002).
- A. V. Vinogradov and R. M. Faschenko, “An approach to the theory of X-ray multilayers with graded period,” Nucl. Instrum. Methods Phys. Res. A 448(1-2), 142–146 (2000).
Opt. Commun.
- V. V. Protopopov and V. A. Kalnov, “X-ray multilayer mirrors with an extended angular range,” Opt. Commun. 158(1-6), 127–140 (1998).
Opt. Lett.
- S. P. Vernon, D. G. Stearns, and R. S. Rosen, “Chirped multilayer coatings for increased x-ray throughput,” Opt. Lett. 18(9), 672–674 (1993). [PubMed]
Phys. Rev. B
- I. Nedelcu, R. W. E. van de Kruijs, A. E. Yakshin, and F. Bijkerk, “Temperature-dependent nanocrystal formation in Mo/Si multilayers,” Phys. Rev. B 76(24Issue 24), 245404 (2007).
- J. M. Slaughter, A. Shapiro, P. A. Kearney, and C. M. Falco, “Growth of molybdenum on silicon: Structure and interface formation,” Phys. Rev. B 44(8), 3854–3863 (1991).
Physica B
- A. E. Yakshin, E. Louis, P. C. Gorts, E. L. G. Maas, and F. Bijkerk, “Determination of the layered structure in Mo/Si multilayers by grazing incidence X-ray reflectometry,” Physica B 283(1-3), 143–148 (2000).
Proc. SPIE
- N. Kaiser, S. Yulin, and T. Feigl, “Si-based multilayers with high thermal stability,” Proc. SPIE 4146, 91 (2000).
- J. Tümmler, H. Blume, G. Brandt, J. Eden, B. Meyer, H. Scherr, F. Scholz, and G. Ulm, “Characterization of the PTB EUV reflectometry facility for large EUVL optical components,” Proc. SPIE 5037, 265–273 (2003).
- A. Gottwald, U. Kroth, M. Letz, H. Schoeppe, and M. Richter, “High-accuracy VUV reflectometry at selectable sample temperatures,” Proc. SPIE 5538, 157–164 (2004).
- K. D. Joensen, P. Gorenstein, F. E. Christensen, P. Høghøj, E. Ziegler, J. Susini, A. Freund, and J. Wood, “Multilayer mirrors: broad-band reflection coatings for the 15 to 100 keV range,” Proc. SPIE 2253, 299–308 (1994).
- T. Kuhlmann, S. A. Yulin, T. Feigl, N. Kaiser, H. Bernitzki, and H. Lauth, “Design and fabrication of broadband EUV multilayer mirrors,” Proc. SPIE 4688, 509 (2002).
- S. Yulin, T. Kuhlmann, T. Feigl, and N. Kaiser, “Spectral reflectance tuning of EUV mirrors for metrology applications,” Proc. SPIE 5037, 286–293 (2003).
- Z. Wang and A. G. Michette, “Optimization of depth-graded multilayer designs for EUV and X-ray optics,” Proc. SPIE 4145, 243–253 (2001).
- D. A. Tichenor, A. K. Ray-Chaudhuri, S. H. Lee, H. N. Chapman, W. C. Replogle, K. W. Berger, R. H. Stulen, G. D. Kubiak, L. E. Klebanoff, J. B. Wronosky, D. J. O’Connell, A. H. Leung, K. L. Jefferson, W. P. Ballard, L. C. Hale, K. Blaedel, J. S. Taylor, J. A. Folta, E. Spiller, R. Soufti, G. E. Sommargren, D. W. Sweeney, P. Naulleau, K. A. Goldberg, E. M. Gullikson, J. Bokor, D. T. Attwood, U. Mickan, R. Hansen, E. Panning, P.-Y. Yan, J. E. Bjorkholm, and C. W. Gwyn, “Initial Results from the EUV Engineering Test Stand,” Proc. SPIE 4506, 9 (2001).
- H. Meiling, J. Benshop, U. Dinger, and P. Kurz, “Progress of the EUVL alphatool,” Proc. SPIE 4343, 38–50 (2001).
Rev. Phys. Appl. (Paris)
- E. Spiller, “Characterization of Multilayer Coatings by X-Ray Reflection,” Rev. Phys. Appl. (Paris) 23(10), 1687–1700 (1988).
Other
- E. Spiller, in Soft X-ray optics, Bellingham ed. (SPIE Optical Engineering Press, Washington 1994).
- J. E. Dennis, Jr., and R. B. Schnabel, in Numerical Methods for Unconstrained Optimization and Nonlinear Equations, Prentice-Hall, Englewood Cliffs, ed. (NJ, 1983).
2008, Nedelcu, J. Appl. Phys.
- I. Nedelcu, R. W. E. van de Kruijs, A. E. Yakshin, and F. Bijkerk, “Thermally enhanced interdiffusion in Mo/Si multilayers,” J. Appl. Phys. 103(8Issue 8), 083549 (2008).
- I. Nedelcu, R. W. E. van de Kruijs, A. E. Yakshin, and F. Bijkerk, “Temperature-dependent nanocrystal formation in Mo/Si multilayers,” Phys. Rev. B 76(24Issue 24), 245404 (2007).
- T. Feigl, S. Yulin, N. Benoit, and N. Kaiser, “EUV multilayer optics,” Microelectron. Eng. 83(4-9), 703–706 (2006).
- M. J. H. Kessels, F. Bijkerk, F. D. Tichelaar, and J. Verhoeven, “Determination of in-depth density profiles of multilayer structures,” J. Appl. Phys. 97(9Issue 9), 093513 (2005).
- A. Gottwald, U. Kroth, M. Letz, H. Schoeppe, and M. Richter, “High-accuracy VUV reflectometry at selectable sample temperatures,” Proc. SPIE 5538, 157–164 (2004).
- J. Tümmler, H. Blume, G. Brandt, J. Eden, B. Meyer, H. Scherr, F. Scholz, and G. Ulm, “Characterization of the PTB EUV reflectometry facility for large EUVL optical components,” Proc. SPIE 5037, 265–273 (2003).
- S. Yulin, T. Kuhlmann, T. Feigl, and N. Kaiser, “Spectral reflectance tuning of EUV mirrors for metrology applications,” Proc. SPIE 5037, 286–293 (2003).
- C. Morawe, E. Ziegler, J.-C. Peffen, and I. V. Kozhevnikov, “Design and fabrication of depth-graded x-ray multilayers,” Nucl. Instrum. Methods Phys. Res. A 493(3), 189–198 (2002).
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