Hadamard Transform Raman Microscopy of Laser-Modified Graphite Electrodes
Abstract:In this communication, we describe the application of Hadamard transform Raman microscopy to the imaging of edge plane microstructures in laser-modified highly ordered pyrolitic graphite (HOPG) electrodes. Hadamard transform Raman microscopy is a highly selective method of analysis which can image thermally sensitive materials at micron-scale spatial resolution. The technique is capable of imaging relatively weak Raman scatterers in only a few minutes. The current multichannel microscope generates images having 255 × 256 pixels. In addition, we characterize an imaging artifact present in our current system, as well as apply a first-order correction for the problem.
Document Type: Research Article
Publication date: September 1, 1990
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