OSA's Digital Library

Optics Letters

Optics Letters


  • Vol. 24, Iss. 24 — Dec. 15, 1999
  • pp: 1835–1837

High-resolution spectrometry for diffuse light by use of anamorphic concentration

N. Davidson, L. Khaykovich, and E. Hasman  »View Author Affiliations

Optics Letters, Vol. 24, Issue 24, pp. 1835-1837 (1999)

View Full Text Article

Acrobat PDF (88 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



A new scheme to improve the spectral resolution of grating-based spectrometers for diffuse light is proposed and demonstrated. It exploits an anamorphic transformation that reduces the beam divergence in the direction of the grating grooves while increasing the divergence in the orthogonal direction to improve the spectral resolution without any loss of light. Up to 12-fold improvement in the spectral resolution was obtained.

© 1999 Optical Society of America

OCIS Codes
(070.4790) Fourier optics and signal processing : Spectrum analysis
(080.2740) Geometric optics : Geometric optical design
(220.1770) Optical design and fabrication : Concentrators
(230.6080) Optical devices : Sources

N. Davidson, L. Khaykovich, and E. Hasman, "High-resolution spectrometry for diffuse light by use of anamorphic concentration," Opt. Lett. 24, 1835-1837 (1999)

Sort:  Author  |  Year  |  Journal  |  Reset


  1. R. Winston and W. T. Weldford, High Collection Nonimaging Optics (Academic, New York, 1989).
  2. N. Davidson and A. A. Friesem, Opt. Commun. 99, 162 (1993).
  3. A. E. Siegman, Lasers (University Science, Mill Valley, Calif., 1986), p. 697; factors of the order of unity may vary in various definitions of Mx, My, and M2.
  4. For the largest angle used in our experiment, the paraxial approximation yields an error of <1%. In any case we can readily generalize the expression in the text to deal accurately with arbitrary large angles.
  5. We also rotated the prism array at 45° to the optical axis to separate the reflected wave from the incident wave. This rotation results in simple folding of the optical axis, as shown in Fig.
  6. This is true when the retroreflector width W is much smaller than D2x. Otherwise, D3x≅D2x+W/2.
  7. The improvement in the rms width of the resolution was only tenfold, as required by Eq. 1.
  8. B. Winston and H. Hinterberg, Sol. Energy 17, 255 (1975).
  9. E. Hasman, S. Keren, N. Davidson, and A. A. Friesem, Opt. Lett. 24, 439 (1999).
  10. Th. Graf and J. E. Balmer, Opt. Lett. 18, 1317 (1993).
  11. J. R. Leger and W. C. Goltsos, IEEE J. Quantum Electron. 28, 1088 (1992).
  12. N. Davidson and A. A. Friesem, Appl. Phys. Lett. 62, 334 (1993).
  13. S. Yamaguchi, T. Kobayashi, Y. Saito, and K. Chiba, Opt. Lett. 20, 898 (1995).
  14. B. Ehlers, K. Du, M. Baumann, H.-G. Treusch, P. Loosen, and R. Poprawe, Proc. SPIE 3097, 639 (1997).
  15. W. A. Clarkson and D. C. Hanna, Opt. Lett. 21, 375 (1996).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited