Substrate effects on measurement of weak absorption of optical thin films

li xia; he hong-bo; zhao yuan-an; fan zheng-xiu

Volume 19 Issue 02

Feb. 2007

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Article Navigation > High Power Laser and Particle Beams > 2007 > 19(02): 0-

Ma Hongyu, Han Yiping. Magnetic guiding of cold atoms in radio-frequency waveguide[J]. High Power Laser and Particle Beams, 2012, 24: 1754-1756.

Citation:

li xia, he hong-bo, zhao yuan-an, et al. Substrate effects on measurement of weak absorption of optical thin films[J]. High Power Laser and Particle Beams, 2007, 19.

Ma Hongyu, Han Yiping. Magnetic guiding of cold atoms in radio-frequency waveguide[J]. High Power Laser and Particle Beams, 2012, 24: 1754-1756.

Citation:

li xia, he hong-bo, zhao yuan-an, et al. Substrate effects on measurement of weak absorption of optical thin films[J]. High Power Laser and Particle Beams, 2007, 19.

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Substrate effects on measurement of weak absorption of optical thin films

1.
Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;
2.
Graduate School of Chinese Acadmy of Sciences,Beijing 100039,China

Publish Date: 2007-02-15

Abstract

Abstract

The substrate effects on the measurement of weak absorption of optical thin films at low frequency are analysed in theory. The absorptions of different thin films, including single-layer HfO2 and ZnO thin films with different thickness, on two substrates (BK7 and silica), as well as absorptions of blank substrates have been measured by surface thermal lensing technique. As a calibrated sample, the absorptions of singal-layer Ti3O5 thin films were measured by Lambda—900 spectrometer. The experimental results show that the substrate of standard film is the same as the substrate of sample in calibration for low measurement is necessary. After considering the influence of film thickness，the correction would be possible.
- surface thermal lensing technique,
- thin films,
- weak absorption,
- calibration,
- substrate

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