Optical spectral properties of periodic micro and nanostructures in Si and GaAs

S. Hava, N. Pinhas, M. Auslender, Arie Cohen-Nov

Research output: Contribution to journalConference articlepeer-review


Periodic structures with minimum feature sizes in the scale of the mean radiation wavelength or less attract considerable interest due to the peculiarity of their electromagnetic (EM) response. When interference and diffraction effects become sufficiently strong, novel and interesting phenomena emerge in reflectivity, transmissivity, absorbance and even infrared thermal emission. The nanotechnology processing enables the production of high-efficiency diffraction gratings with quite small periods, down to the nanometer range, with aspect ratios higher than in spectroscopic gratings. In this paper we present the spectral measurements (transmission and thermal emission) of GaAs and silicon samples with lamella 1D gratings and mesa 2D structures. We also present the theoretical and simulation tools developed for the design and analysis of multilayer lamellar grating structures.

Original languageEnglish
Article number111
Pages (from-to)746-750
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberPART 2
StatePublished - 15 Jun 2005
EventSmart Structures, Devices, and Systems II - Sydney, Australia
Duration: 13 Dec 200415 Dec 2004


  • Diffraction grating
  • Nano-photonics
  • Optical spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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