Abstract

A commercially available fiber-optic Raman probe was modified for high-resolution spectral Raman imaging using a 350 μm diameter optical fiber image guide coupled to a dimension-reduction imaging array (DRIA). The DRIA comprised 672 optical fibers, arranged as a square array (21 × 32 fibers) on one end and a linear array (672 × 1 fibers) on the other. An imaging spectrograph was used with the DRIA to acquire multi-wavelength Raman images from -250 to 1800 cm^-1 at a spectral resolution of ~5 cm^-1. The utility of this technique for <i>in situ</i> and remote Raman imaging is demonstrated by monitoring the polymerization of a model polymer, dibromostyrene (DBS), while simultaneously measuring the Raman Stokes/anti-Stokes ratio as a function of sample heating time, over a sample area of ~4 × 1.6 mm.

Accelerated image reconstruction in fluorescence molecular tomography using dimension reduction

Xu Cao, Xin Wang, Bin Zhang, Fei Liu, Jianwen Luo, and Jing Bai
Biomed. Opt. Express 4(1) 1-14 (2013)

Multi-point differential laser doppler velocimeter using arrayed waveguide gratings with small wavelength sensitivity

Koichi Maru, Kohjiro Kobayashi, and Yusaku Fujii
Opt. Express 18(1) 301-308 (2010)

Multi-focus image fusion using fractal dimension

Chinmaya Panigrahy, Ayan Seal, Nihar Kumar Mahato, Ondrej Krejcar, and Enrique Herrera-Viedma
Appl. Opt. 59(19) 5642-5655 (2020)

In situ and real time monitoring of two-photon polymerization using broadband coherent anti-Stokes Raman scattering microscopy

Tommaso Baldacchini and Ruben Zadoyan
Opt. Express 18(18) 19219-19231 (2010)

Nonresonant background suppression for coherent anti-Stokes Raman scattering microscopy using a multi-wavelength time-lens source

Bo Li, Kriti Charan, Ke Wang, Tomás Rojo, David Sinefeld, and Chris Xu
Opt. Express 24(23) 26687-26695 (2016)