Photo-thermal spectroscopy of thin solid films

A novel photo-thermal spectroscopic method has been developed for determining the optical absorption coefficient of thin films. The temperature rising in the film illuminated with monochromatic light is measured with thin film thermocouples, and the thermo-electric voltage is employed to calculate t...

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Veröffentlicht in:	Japanese Journal of Applied Physics 1983-01, Vol.22 (9), p.L592-L594
Hauptverfasser:	TANAKA, K, SATOH, R, ODAJIMA, A
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of specific thin films Physics
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Beschreibung
Zusammenfassung:	A novel photo-thermal spectroscopic method has been developed for determining the optical absorption coefficient of thin films. The temperature rising in the film illuminated with monochromatic light is measured with thin film thermocouples, and the thermo-electric voltage is employed to calculate the absorption coefficient. For a 1 µm-thick amorphous As 2 S 3 film, the coefficient can be determined down to 5×10 2 cm -1 at desired temperatures.
ISSN:	0021-4922 1347-4065
DOI:	10.1143/jjap.22.l592