Abstract
Experimental and theoretical study of thermal emission, transmission, and reflection from bare and coated one-dimensional (1D) and two-dimensional (2D) grating structures on GaAs substrates was carried out. Our experiments have revealed strong correlation between the spectra of thermal emission and the microstructure dimensions. The emissivity enhancement and diminution depends on the groove depth and the spectral range (below or above Rayleigh wavelength). The effects can be attributed to diverse mechanisms: emission escape due to emerging diffraction-order beams, vertical-cavity modes, enhanced optical transmission phenomenon, and electron plasma effect.
| Original language | English |
|---|---|
| Pages (from-to) | 365-367 |
| Number of pages | 3 |
| Journal | Optical Review |
| Volume | 14 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1 Nov 2007 |
Keywords
- Gratings
- Infrared
- Microstructures
- Thermal emission
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics