Abstract
Functional medical diagnosis by laser molecular spectroscopy together with new spectral analysis methodshas recently made remarkable progress because of three major reasons. One is rapid development of lasertechnology. A variety of new lasers including new semiconductor lasers and tunable lasers have becomeavailable in laser spectroscopy of biomedical samples. In the field of biomedical spectral analysis, the advancesin near-infrared (NIR) lasers have been very important. The other is the progress in detectors andspectrometers such as CCD and multichannel spectrometers in the NIR region. Yet another is the developmentof spectral analysis methods such as chemometrics, neural network, and two-dimensional correlation spectroscopy.The main purpose of this review paper is to report the progress in the modern spectral analysis methodsand their applications to the field of medical functional diagnosis.
