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Design Considerations for Discrete Frequency Infrared Microscopy Systems.

Yamuna Phal1,2, Kevin Yeh2, Rohit Bhargava1,2,3,4

  • 1Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, USA.

Applied Spectroscopy
|April 20, 2021
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Summary
This summary is machine-generated.

Discrete frequency infrared (IR) chemical imaging advances microspectroscopy. This work compiles IR microscope design considerations, optimizing performance and guiding future innovations in IR chemical imaging spectrometers.

Keywords:
Fourier transform infraredIR microscopyInfrared microscopychemical imagingdesign considerationsdesign of IR microscopesdiscrete frequency infraredoptical designperformance metricsquantum cascade laserspectroscopy

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Area of Science:

  • Spectroscopy
  • Optical Engineering
  • Materials Science

Background:

  • Discrete frequency infrared chemical imaging offers new microspectroscopy capabilities.
  • Existing literature lacks a compilation of infrared (IR) microscope design considerations.

Purpose of the Study:

  • To detail the evolution and design choices of IR microscopes.
  • To provide a framework for assessing and optimizing IR imaging system performance.
  • To guide the development of next-generation IR chemical imaging spectrometers.

Main Methods:

  • Reviewing the evolution of IR microscopes and their optical components.
  • Analyzing design choices for performance optimization under specific constraints.
  • Developing a mathematical framework for instrument performance assessment.
  • Enumerating performance metrics for system validation.

Main Results:

  • A comprehensive catalog of major design considerations for IR microscope optical components.
  • Illustrative examples of design choices and their impact on performance.
  • A framework for mathematically assessing IR imaging system performance.
  • A validation approach using specific performance metrics.

Conclusions:

  • The presented concepts and examples aid in understanding current IR imaging configurations.
  • This work provides guidance for innovations in the design of future IR chemical imaging spectrometers.
  • Standardized performance metrics will facilitate evaluation and application suitability assessment.