Abstract

We propose a new class of slitless spectrometers using cylindrical beam volume holograms. These holograms disperse an input beam in one direction in an output plane while they do not affect the beam in the perpendicular direction. We show that the spectral mapping of the input beam can be obtained in one direction and the beam can be independently modified in the perpendicular direction. Using this unique property, we demonstrate a spectral wrapping technique to considerably increase the operation spectral range of the slitless spectrometers, without sacrificing their resolution.

© 2007 Optical Society of America

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References

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  1. E. D. Nelson and M. L. Fredman, J. Opt. Soc. Am. 60, 1664 (1970).
    [CrossRef]
  2. M. E. Gehm, S. T. McCain, N. P. Pitsianis, D. J. Brady, P. Potuluri, and M. E. Sullivan, Appl. Opt. 45, 2965 (2006).
    [CrossRef] [PubMed]
  3. C. Hsieh, O. Momtahan, A. Karbaschi, and A. Adibi, Opt. Lett. 30, 836 (2005).
    [CrossRef] [PubMed]
  4. O. Momtahan, C. R. Hsieh, A. Adibi, and D. J. Brady, Appl. Opt. 45, 2955 (2006).
    [CrossRef] [PubMed]
  5. O. Momtahan, C. Hsieh, A. Karbaschi, A. Adibi, M. E. Sullivan, and D. J. Brady, Appl. Opt. 43, 6557 (2004).
    [CrossRef]
  6. R. T. Ingwall and D. Waldman, in Holographic Data Storage, H.J.Coufal, D.Psaltis, and G.T.Sincerbox, eds. (Springer, 2000), pp. 171-197. Also, www.aprilisinc.com.
  7. D. J. Brady, Opt. Lett. 27, 16 (2002).
    [CrossRef]

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Figures (3)

Fig. 1
Fig. 1

(a) Recording geometry for the cylindrical beam volume hologram. The hologram is recorded in a holographic material with thickness L using a plane wave and a beam focused by a cylindrical lens. The focus of the cylindrical beam is at distance d 1 and d 2 from the lens and the hologram, respectively. (b) Arrangement of the slitless spectrometer based on a CBVH. A cylindrical lens with focal length of f 1 obtains the Fourier transform in the x-direction. In the y-direction the beam can be modified independently (e.g., imaged) using another cylindrical lens with a focal length of f 2 , shown by the dashed lines.

Fig. 2
Fig. 2

Outputs on the CCD for the spectrometer shown in Fig. 1b corresponding to the inputs at (a) wavelength λ = 482 nm and at (b) wavelength λ = 532 nm , with the input being the light from a monochromator directly coupled to the spectrometer. A cylindrical lens with the focal length of f 1 = 5 cm is used in the spectrometer. The outputs corresponding to such diffuse input beams at wavelength λ = 482 nm and λ = 532 nm are shown in (c) and (d), respectively.

Fig. 3
Fig. 3

(a) Output on the CCD for a diffuse monochromatic beam at 620 nm wavelength in the spectrometer of Fig. 1b with a spatially multiplexed CBVH. (b) Normalized intensity profile in the x-direction on the CCD for the operating range of wavelengths from 450   to   800 nm with steps of 10 nm . The top and bottom plots correspond to the top and bottom regions of the CCD, respectively.

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