Functional selective coatings blocking radiation in the infrared and passing in the microwave spectral range

Transmission spectra of mylar films with nanostructured  AlN  layers in 2-25 µm IR spectral range.

Transmission spectra of mylar films with nanostructured AlN layers in 2-25 µm IR spectral range.
(click to view full-size)

Development created in collaboration with Institute for Metal Physics of NASU.

Purpose - can be used as elements of filtering devices for:

  • decrease of an object detection in IR spectral range;
  • assurance of high level of desired informative signal in radio-frequency (2-36 GHz) and sub-THz spectral ranges (65+-10, 140+-1, 270+-10 GHz, the losses in these spectral ranges are <= 0.06-0.2 dB (<=1.4-4.6 %) at thicknesses of nanostructured  AlN coatings ~1-3 µm);
  • cryogenic receiving systems for modern navigation networks, positioning and telecommunications (for protection of the cryoelements of detecting systems from harmful thermal IR radiation and thermal shock).
Contacts: 
Ukraine, V.E. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine, [email protected]