Midinfrared optical absorption in germanium measured with a free-electron laser at room temperature
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Department of Electronic Engineering, Osaka University, Suita City, Osaka 565-0871 (Japan)
We have investigated the effects of high-power laser pulses on a transparent material using a free-electron laser (FEL). We have measured optical transmittance through a germanium crystal in the midinfrared region, {lambda}=5.3-12.4 {mu}m at room temperature. In spite of the fact that germanium is transparent in the midinfrared region, we have observed strong suppression of optical transmission under high-intensity FEL excitation.
- OSTI ID:
- 20853889
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 74, Issue 20; Other Information: DOI: 10.1103/PhysRevB.74.205206; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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