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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 28 — Oct. 1, 2012
  • pp: 6855–6863

Design of a flat field concave-grating-based micro-Raman spectrometer for environmental applications

Zhiyun Li, M. Jamal Deen, Qiyin Fang, and P. R. Selvaganapathy  »View Author Affiliations


Applied Optics, Vol. 51, Issue 28, pp. 6855-6863 (2012)
http://dx.doi.org/10.1364/AO.51.006855


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Abstract

In order to simplify the design process of microfabricated concave gratings, simplified algorithms for fast characterization of the concave grating were developed. These algorithms can be used to assist system designers using ray-tracing software in the determination of optimum design parameters considering the requirements and restrictions for specific applications. According to the algorithms, it is feasible to design a flat field microconcave grating with a 4 mm grating radius as a key component in a micro-Raman spectrometer system for inline environmental monitoring applications. This microspectrometer operates over the spectral wavelength band from 785 nm to 1000 nm and has a spectral resolution of 2 nm at 900 nm. The total size of the system is 1mm×4mm×3.7mm, making it one of the smallest for this wavelength range and spectrum resolution.

© 2012 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(050.2770) Diffraction and gratings : Gratings
(080.2740) Geometric optics : Geometric optical design
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(170.5660) Medical optics and biotechnology : Raman spectroscopy
(080.1005) Geometric optics : Aberration expansions

ToC Category:
Diffraction and Gratings

History
Original Manuscript: June 11, 2012
Revised Manuscript: August 12, 2012
Manuscript Accepted: August 15, 2012
Published: September 28, 2012

Citation
Zhiyun Li, M. Jamal Deen, Qiyin Fang, and P. R. Selvaganapathy, "Design of a flat field concave-grating-based micro-Raman spectrometer for environmental applications," Appl. Opt. 51, 6855-6863 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-28-6855


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