Abstract

A 69-element Hadamard mask is used to encode a line-focused excimer laser beam to obtain spatially multiplexed photothermal deflection signals. The spatial distribution and relative quantities of potassium chromate samples on silica are recovered by Hadamard transformation.

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)

Hadamard–Transform Image Scanning

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

Photoacoustic imaging using the Hadamard transform technique

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

Hadamard-transform fluorescence-lifetime imaging

Takahiko Mizuno and Tetsuo Iwata
Opt. Express 24(8) 8202-8213 (2016)

Linear imaging of gas velocity using the photothermal deflection effect

Jeffrey A. Sell and Robert J. Cattolica
Appl. Opt. 25(9) 1420-1428 (1986)