Abstract

A Hadamard approach employing an encoding mask at the entrance to a spectrograph and a multichannel detector is described. This approach provides an energy throughput advantage which should prove important for a variety of emission-mode measurements requiring collection of radiation from an extended source. The performance of the system is demonstrated for mercury lamp atomic emission and rhodamine B fluorescence measurements. Simulations are used to investigate mechanical requirements in the construction of the system.

Hadamard spectroscopy with a two-dimensional detecting array

S. B. Mende, E. S. Claflin, R. L. Rairden, and G. R. Swenson
Appl. Opt. 32(34) 7095-7105 (1993)

Experimental Realization of the Multiplex Advantage with a Hadamard-Transform Spectrometer

J. A. Decker
Appl. Opt. 10(3) 510-514 (1971)

Hadamard multiplexing in laser ultrasonics

Guy Rousseau and Alain Blouin
Opt. Express 20(23) 25798-25816 (2012)

Multiplex advantage in Hadamard transform spectrometry utilizing solid-state encoding masks with uniform, bistable optical transmission defects

David C. Tilotta, Robert M. Hammaker, and William G. Fateley
Appl. Opt. 26(19) 4285-4292 (1987)

Evaluation of a Hadamard-coded photodiode-array spectrometer under low illumination

Joseph L. Robichaud, Wallace K. Wong, and Roger A. Van Tassel
Appl. Opt. 33(1) 75-81 (1994)