Single-beam interferometry of a thermal bump

A novel single-beam interferometric measurement of a thermal bump produced by an intensity modulated and focused laser beam is described. The effects of the ac change in optical reflectivity and the displacement of the surface are determined independently by fitting data to a phenomenological theory...

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Veröffentlicht in:	Applied Optics 1990-12, Vol.29 (36), p.5326-5331
Hauptverfasser:	PAO-KUANG KUO, MUNIDASA, M
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Instruments, apparatus, components and techniques common to several branches of physics and astronomy Interferometers Optical instruments, equipment and techniques Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A novel single-beam interferometric measurement of a thermal bump produced by an intensity modulated and focused laser beam is described. The effects of the ac change in optical reflectivity and the displacement of the surface are determined independently by fitting data to a phenomenological theory. This technique is insensitive to sample vibrations and variations in optical path resulting from thermal fluctuations.
ISSN:	0003-6935 1559-128X 1539-4522
DOI:	10.1364/ao.29.005326