Abstract

A 250-mm imaging spectrograph was combined with a CCD detector, fiber-optic sampler, and diode laser (783 nm) to yield an efficient Raman spectrometer. A variety of sampling modes for liquids and solids were demonstrated, none of which required careful optical alignment. Of practical interest are spectra obtained from liquids inside glass containers, rapid (30 seconds each) spectral acquisition from successive solid and liquid samples, and spectra of normally fluorescent materials such as rhodamine 6G and common plastics.

Dual-wavelength excitation combined Raman spectroscopy for detection of highly fluorescent samples

Jianfeng Ye, Jiarui Li, Minjian Lu, Xiaohua Qi, Boyi Li, Haoyun Wei, Yan Li, and Mingqiang Zou
Appl. Opt. 60(23) 6918-6927 (2021)

Combination of scattering-projection interleaving and random down-sampling for compressive confocal Raman imaging

Hang Yuan, Pengfei Zhang, Feng Gao, and Xianyu Bao
Opt. Express 30(25) 44657-44664 (2022)

DMD-based software-configurable spatially-offset Raman spectroscopy for spectral depth-profiling of optically turbid samples

Zhiyu Liao, Faris Sinjab, Graham Gibson, Miles Padgett, and Ioan Notingher
Opt. Express 24(12) 12701-12712 (2016)

Raman spectroscopy applications of an imaging photomultiplier tube

D. Kirk Veirs, Victor K. F. Chia, and Gerd M. Rosenblatt
Appl. Opt. 26(17) 3530-3535 (1987)

Chemical concentration measurement in blood serum and urine samples using liquid-core optical fiber Raman spectroscopy

Dahu Qi and Andrew J. Berger
Appl. Opt. 46(10) 1726-1734 (2007)