Abstract

The design of a Hadamard transform Raman microprobe is presented. The spatially multiplexed imaging system provides true spectroscopic microscopy. Near-diffraction limited resolution, 1.3 μm, is demonstrated with Raman images of polycrystalline materials.

Fast delta Hadamard transform

E. E. Fenimore and G. S. Weston
Appl. Opt. 20(17) 3058-3067 (1981)

Hadamard-transform spectral acquisition with an acousto-optic tunable filter in a broadband stimulated Raman scattering microscope

Luca Genchi, Andrea Bucci, Sergey P. Laptenok, Alessandro Giammona, and Carlo Liberale
Opt. Express 29(2) 2378-2386 (2021)

Hadamard–Transform Image Scanning

J. A. Decker
Appl. Opt. 9(6) 1392-1395 (1970)

Hadamard transform imager and imaging spectrometer

Roderick D. Swift, Richard B. Wattson, John A. Decker, Ralph Paganetti, and Martin Harwit
Appl. Opt. 15(6) 1595-1609 (1976)

Photoacoustic imaging using the Hadamard transform technique

H. Coufal, U. Moller, and S. Schneider
Appl. Opt. 21(1) 116-120 (1982)