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Optics Express

Optics Express

  • Vol. 16, Iss. 16 — Aug. 4, 2008
  • pp: 12239–12250

Microspectrometer based on holographically recorded diffractive elements using supplementary holograms

Robert Brunner, Matthias Burkhardt, Klaus Rudolf, and Correns Nico  »View Author Affiliations

Optics Express, Vol. 16, Issue 16, pp. 12239-12250 (2008)

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The conception and realization of an imaging microspectrometer, limited to an optical volume of 11 × 6 × 5 mm3, is presented. The spectrometer is based on a multi-order concept and offers an overall spectral bandwidth of 400 – 1030 nm with better than 2.5 nm resolution in the visible range. The numerical aperture of NA = 0.2 allows an appropriate energy efficiency. As the most essential element of the microspectrometer, a concave diffraction grating with a diameter of 5 mm and an image distance of f = 8.6 mm was manufactured in a holographic recording process. For the recording process the specifications of the concave grating require two diffraction limited point sources in very close proximity. To provide a point source distance below 1 mm a recording concept based on the introduction of a supplementary hologram was employed.

© 2008 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1950) Diffraction and gratings : Diffraction gratings
(090.2890) Holography : Holographic optical elements
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.6190) Spectroscopy : Spectrometers

ToC Category:

Original Manuscript: June 2, 2008
Revised Manuscript: July 9, 2008
Manuscript Accepted: July 15, 2008
Published: July 31, 2008

Robert Brunner, Matthias Burkhardt, Klaus Rudolf, and Nico Correns, "Microspectrometer based on holographically recorded diffractive elements using supplementary holograms," Opt. Express 16, 12239-12250 (2008)

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