Abstract

A comparison of prism-based spectrographs to grating-based spectrographs is made when each of the systems is coupled to a modern-day liquid-nitrogen-cooled photovoltaic array detector. A comparison of the systems is also made using a room-temperature microbolometer array detector. Finally, infrared microspectroscopy of samples whose size is ~10 micrometers will be demonstrated using a prism spectrograph outfitted with both types of detectors. The results of the study show that prism-based spectrographs offer an economical alternative to grating-based systems when spectral coverage is more critical than spectral resolution. The results also demonstrate that spectra with good signal-to-noise ratios can be collected on any of the systems with a total integration time of 10 seconds or less.

Far Infrared Spectrograph for Use from the Prism Spectral Region to about 1-mm Wavelength

H. Yoshinaga, S. Fujita, S. Minami, A. Mitsuishi, R. A. Oetjen, and Y. Yamada
J. Opt. Soc. Am. 48(5) 315-323 (1958)

Using confidence intervals to evaluate the focus alignment of spectrograph detector arrays

Travis W. Sawyer, Kyle S. Hawkins, and Michael Damento
Appl. Opt. 56(18) 5295-5300 (2017)

A Multiple Prism Glass Spectrograph

D. H. Rank
J. Opt. Soc. Am. 23(3) 84-87 (1933)

An Infrared Spectrograph for Use in the 40–150-Micron Spectral Region*

R. A. Oetjen, W. H. Haynie, W. M. Ward, R. L. Hansler, H. E. Schauwecker, and E. E. Bell
J. Opt. Soc. Am. 42(8) 559-566 (1952)

Development of a near-infrared single-photon 3D imaging LiDAR based on 64×64 InGaAs/InP array detector and Risley-prism scanner

Changsheng Tan, Wei Kong, Genghua Huang, Shaolei Jia, Qiang Liu, Qingyun Han, Jia Hou, Ruikai Xue, Shiao Yu, and Rong Shu
Opt. Express 32(5) 7426-7447 (2024)