Infrared thermal emission, reflection, and transmission of GaAs periodic microstructures

Nathan Pinhas, Mark Auslender, Shlomo Hava

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


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 languageEnglish
Pages (from-to)365-367
Number of pages3
JournalOptical Review
Issue number6
StatePublished - 1 Nov 2007


  • Gratings
  • Infrared
  • Microstructures
  • Thermal emission

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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