학술논문

Spectrochemical applications of semiconductor lasers
Document Type
Conference
Source
1997 Digest of the IEEE/LEOS Summer Topical Meeting: Vertical-Cavity Lasers/Technologies for a Global Information Infrastructure/WDM Components Technology/Advanced Semiconductor Lasers and Application LEOS Summer topical meetings Vertical-Cavity Lasers, Technologies for a Global Information Infrastructure, WDM Components Technology, Advanced Semiconductor Lasers and Applications, Gallium Nitride Materials, Processing, and Devi. :41 1997
Subject
Components, Circuits, Devices and Systems
Photonics and Electrooptics
Laser applications
Semiconductor lasers
Diode lasers
Spectroscopy
Tunable circuits and devices
Laser noise
Narrowband
Instruments
Radiation detectors
Semiconductor radiation detectors
Language
Abstract
Semiconductor laser diodes of the AlGaAs and InGaAsP type combine the special spectroscopic properties of tunable, cw lasers, such as narrow band width and high spectral radiation density, with properties which are important for compact and routinely operated spectrochemical instruments of high detection sensitivity. Such technical properties are, for example, rapid wavelength tunability by diode current, low amplitude noise, high stability, long lifetime, low price and small size. General aspects of diode laser application in element analysis are given in a recent review.