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[Design and simulation of the NIR micro-spectrometer optical system].

Ling-Fang Wang1, Zhi-Yu Wen, Xian-Yi Xiang

  • 1Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education, Microsystem Research Center, Chongqing University, Chongqing 400044, China. crystal_angel@yeah.net

Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|October 9, 2009
PubMed
Summary

Researchers developed a miniaturized near-infrared spectrometer using a cross-C-T micro-structure. This compact optical system achieves a spectral range of 900-1700 nm with high resolution, enabling portable spectroscopic analysis.

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Area of Science:

  • Optical Engineering
  • Spectroscopy

Context:

  • Miniaturization of analytical instruments is crucial for portable and field applications.
  • Near-infrared (NIR) spectroscopy offers valuable chemical information but often requires bulky equipment.

Purpose:

  • To design and optimize a micro-optical system for a near-infrared spectrometer with specific miniaturization, spectral range, and resolution requirements.
  • To demonstrate the feasibility of a cross-C-T micro-structure for compact spectrometer design.

Summary:

  • A novel cross-C-T micro-structure based on a plane diffraction grating was proposed for a miniaturized near-infrared spectrometer.
  • Optical design and simulation using ZEMAX software were performed to analyze the micro-optical system.
  • The designed system achieved a spectral range of 900-1700 nm, resolution < 10 nm, and a compact volume of 51.26 mm x 41.81 mm x 22 mm, meeting all design objectives.

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Impact:

  • Successfully addressed the challenge of optical system miniaturization for spectrometers.
  • Contributes to the development of smaller, more portable near-infrared spectrometers for diverse applications.
  • Enables advanced spectroscopic analysis in resource-limited or field settings.