Infrared optics applications of thin polyaniline emeraldine base films

Edward Bormashenko*, Roman Pogreb, Semion Sutovski, Alexander Shulzinger, Avigdor Sheshnev, Gregory Izakson, Abraham Katzir

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

The use of polyaniline emeraldine base films as antireflection coating for near and middle IR optics elements was studied. The optical quality of ZnSe substrates spin-coated with thin PANI EB layers were studied using a Linnik interferometer. The spectral properties of PANI coated ZnSe plates were investigated in broad IR band with FTIR spectrometer. It was shown that PANI coating allows a significant decrease of Fresnel losses in the near and middle IR bands (1.0 - 6.25 μm). The coating allowed continuous transmission of high power density of IR radiation produced by CO2 laser. The transmission coefficient doesn't depend on the incident laser beam power density (up to 3 W/mm2). The laser irradiation damage threshold of the PANI EB coating was studied at a wavelength of 1.5 μm and established as high as 0.1 GW/mm2 (τ = 12 10-9s) for PANI EB coating with a thickness of 150 nm. Microhardness of the PANI EB coated ZnSe plates was established as satisfactory.

Original languageEnglish
Pages (from-to)445-451
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4991
DOIs
StatePublished - 2003
EventPROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Organic Photonic Materials and Devices V - San Jose, CA, United States
Duration: 27 Jan 200330 Jan 2003

Funding

FundersFunder number
Israel Ministry of Absorption
Israel Ministry of Science, Culture and Sport1461-2-00

    Keywords

    • Antireflection
    • Coating
    • Infrared
    • Laser irradiation damage threshold
    • Polyaniline emeraldine base
    • Spectrum
    • ZnSe

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