The Development of a Parallel-Channel Spectrographic Detector: Applications to Raman Scattering.
YALE UNIV NEW HAVEN CONN DEPT OF ENGINEERING AND APPLIED SCIENCE
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A parallel-channel detector was developed for use in visible and near infrared light scattering experiments. The design goal of obtaining quantumlimited response simultaneously over 100 resolvable spectral elements has been achieved. This level of performance allows a significant 1001 decrease in the time required to obtain a low-light level spectrum, when compared to the acquisition times of conventional detectors, such as the photomultiplier tube or photographic emulsion. Details of the design, construction, and operating characteristics of the parallel-channel detector are given, along with the results of Raman scattering measurements to determine 1 the vibrational-rotational temperature of a flame 2 the gas concentration profile of a gas-dynamic system. Implications of these measurement techniques are discussed. Author
- Atomic and Molecular Physics and Spectroscopy