The dual beam picosecond continuum technique for measurement of short time-scale transmission spectra
Date Published |
04/1998
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Publication Type | Journal Article
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Authors | |
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DOI |
10.1080/08916159808946566
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LBL Report Number |
LBNL-43857
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Abstract |
In this work, a dual-beam measurement technique is presented to measure the short-time-scale optical properties of novel materials. It is shown that the picosecond continuum probe source obtained from nonlinear interaction with H2O/D2O is highly variable and does not permit detection of small changes in absorption /transmission spectra. The dual-beam approach is proposed to allow simultaneous measurement of a sample's properties in both the excited and steady states. As an example, the technique is applied to the picosecond transmission spectrum of light-emitting porous silicon. Photo-induced absorption is observed at a level that could not be detected without the new technique. |
Notes |
LBNL-43857 NOT IN FILE |
Journal |
Experimental Heat Transfer
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Volume |
11
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Year of Publication |
1998
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Issue |
4
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Pagination |
281-297
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Keywords | |
Organizations | |
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