Lattice absorption bands observed in silicon by means of spectral emissivity measurements
- Resource Type
- Authors
- D.L. Stierwalt; R.F. Potter
- Source
- Journal of Physics and Chemistry of Solids. 23:99-102
- Subject
- Materials science
Photon
Silicon
Phonon
business.industry
Physics::Optics
chemistry.chemical_element
General Chemistry
Spectral bands
Condensed Matter Physics
Molecular physics
Wavelength
Optics
chemistry
Lattice (order)
Emissivity
Transmittance
General Materials Science
business
- Language
- ISSN
- 0022-3697
Spectral emissivity measurements at wavelengths between 3 and 15 μ, have been made on n - and p -type silicon. Previous investigations using transmittance techniques have reported absorption bands attributed to interactions of the photons with lattice vibrations. The present work confirms these bands in the 7–15μ region and in addition reports structure at wavelengths shorter than the three phonon cut-off. The structure observed at a wavelength of 5.8 μ. is interpreted as being a summation band due to the four phonon combination of two transverse optical, one longitudinal optical and one longitudinal acoustic modes.