Browsing by Author "Chao, S"

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A simple laboratory procedure for packaging and testing part-fabricated gas microsensors
(1996-05-01)
Chao, S
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交大名義發表
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電子物理學系
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National Chiao Tung University
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Department of Electrophysics
Simple schemes for gas microsensor packaging and testing are presented. The packaging procedures are developed for mostly hand operations without reliance on sophisticated equipment. Special flow-cell features and compact design enable easy configuration for testing in gas streams by flow-injection. Automation improves the efficiency of the sampling of gas microsensors and hence provides a higher compilation rate for the test data.
Optimization of second harmonic generation in non-linear film structure
(2004-06-01)
Dyankov, G
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Chen, HY
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Chao, S
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Chi, S
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光電工程學系
The problem about optimization of second harmonic generation (SHG) by a laser beam in a non-linear medium with dimensions less than the beam size has not been solved yet. We present a theoretical method providing an optimization of SHG in the case of non-linear film non-waveguide structure. We have found that even in the case of perfect phase matching there is an optimum length for maximum non-linear interaction. The dependence of generation efficiency on different type of non-linear profiles has been established and related with experimental results. (C) 2004 Elsevier B.V. All rights reserved.