Large spectral blue shifts in intense laser irradiation of microdroplets
Optics Express, Vol. 14, Issue 12, pp. 5502-5507 (2006)
http://dx.doi.org/10.1364/OE.14.005502
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Abstract
When methanol microdroplets of 15mm size are irradiated by intense femtosecond laser pulses of moderate intensities (<2×1016W cm-2), we observe a ‘red-light flash’ from the microplasma. We report on the presence of a large ‘blue shoulder’ (that extends to about 200 nm from the incident laser wavelength) in the scattered spectra that corresponds to the red-light flash. A prepulse is found to be essential for producing the large blue shift, which is attributed to the rapid subsequent ionization of a near-critical density preplasma when the main pulse is incident.
© 2006 Optical Society of America
OCIS Codes
(010.3310) Atmospheric and oceanic optics : Laser beam transmission
(190.2640) Nonlinear optics : Stimulated scattering, modulation, etc.
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7100) Ultrafast optics : Ultrafast measurements
(350.5400) Other areas of optics : Plasmas
ToC Category:
Nonlinear Optics
History
Original Manuscript: March 27, 2006
Revised Manuscript: May 12, 2006
Manuscript Accepted: May 16, 2006
Published: June 12, 2006
Citation
M. Anand, P. Gibbon, and M. Krishnamurthy, "Large spectral blue shifts in intense laser irradiation of microdroplets," Opt. Express 14, 5502-5507 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-12-5502
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References
- H. Schwoerer, P. Gibbon, S. Düsterer, R. Behrens, C. Ziener, C. Reich, and R. Sauerbrey, "MeV x rays and photoneutrons from Femtosecond laser-produced plasmas," Phys. Rev. Lett. 86, 2317-2320 (2001). [CrossRef] [PubMed]
- J. Faure, Y. Glinec, A. Pukhov, S. Kiselev, S. Gordienko, E. Lefebvre, J.-P. Rousseau, F. Burgy and V. Malka, "A laser-plasma accelerator producing monoenergetic electron beams," Nature 431, 541-544 (2004). [CrossRef] [PubMed]
- H. C. Kapteyn, M. M. Murnane and I. P. Christov, "Extreme nonlinear optics: coherent x rays from lasers," Physics Today, 58, 39-44 (2005). [CrossRef]
- J. Hein, S. Podleska, M. Siebold, M. Hellwing, R. B¨odefeld, G. Quednau, R. Sauerbrey, D. Ehrt, W. Wintzer,"Diode-pumped chirped pulse amplification to the joule level, " Appl. Phys. B 79, 419-422 (2004). [CrossRef]
- T. Nishikawa, H. Nakano, K. Oguri, N. Uesugi, K. Nishio and H. Masuda, "Nanohole-array size dependence of soft x-ray generation enhancement from femtosecond-laser-produced plasma," J. Appl. Phys. 96, 7537-7534 (2004) Q1 [CrossRef]
- S. Düsterer, H. Schwoerer, W. Ziegler, D. Salzmann, R. Sauerbrey, "Effects of a prepulse on laser-induced EUV radiation conversion efficiency," Appl. Phys. B. 76, 17-21, (2003). and references therein. [CrossRef]
- L. Malmqvist, L. Rymell, and H. M. Hertz, "Droplet-target laser-plasma source for proximity x-ray lithography," Appl. Phys. Lett. 68, 2627-2629 (1996). [CrossRef]
- M. Anand, C. P. Safvan, M. Krishnamurthy, "Hard X-ray generation from microdroplets in intense laser fields," Appl. Phys. B 81, 469-477 (2005). [CrossRef]
- M. Anand, A. S. Sandhu, S. Kahaly, G. Ravindra Kumar, M. Krishnamurthy and P. Gibbon, "Enhanced hard X-ray emission from microdroplet preplasma," Appl. Phys. Lett. (in press).
- W. M. Wood, C. W. Siders, and M. C. Downer, "Measurement of femtosecond ionization dynamics of atmospheric density gases by spectral blueshifting," Phys. Rev. Lett. 67, 3523-3526 (1991). [CrossRef] [PubMed]
- B. M. Penetrante, J. N. Bardsley, Wm. M. Wood, C. W. Siders, and M. C. Downer, "Ionization- induced frequency shifts in intense femtosecond laser pulses," J. Opt. Soc. Am. B 92032-2040, (1992). [CrossRef]
- H. Singhal, V. Arora, P. A. Naik, and P. D. Gupta, "Spectral blueshifts in laser light scattered from argon-gascluster plasmas," Phys. Rev. A 72, 043201 (2005). [CrossRef]
- K. Y. Kim, I. Alexeev, T. M. Antonsen, A. Gupta, V. Kumarappan, and H. M. Milchberg,"Spectral redshifts in the intense laser-cluster interaction, " Phys. Rev. A 71, 011201 (2005). [CrossRef]
- C. Farve. V. Boutou, S. C. Hill, W. Zimmer, M. Krenz, H. Lambrecht, J. Yu, R. K.Chang, L. Woeste, J. P. Wolf, "White-light nanosource with directional emission," Phys. Rev Lett. 89, 035002 (2002). [CrossRef]
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