Optical properties of the chalcogenide films for interference coatings in IR spectral range

Eugeny Nikolaevich Kotlikov; Vadim Nikolaevich Prokashev; Alexey Nikolaevich Tropin

doi:10.1117/12.786942

15 January 2008 Optical properties of the chalcogenide films for interference coatings in IR spectral range

Eugeny Nikolaevich Kotlikov, Vadim Nikolaevich Prokashev, Alexey Nikolaevich Tropin

Proceedings Volume 6985, Fundamentals of Laser Assisted Micro- and Nanotechnologies; 698506 (2008) https://doi.org/10.1117/12.786942
Event: Fundamentals of Laser Assisted Micro- and Nanotechnologies, 2007, St. Petersburg, Russian Federation

Abstract

Interference coating for infrared spectral region required the transparent optical films with different refraction indexes and minimal an absorption factor. It is well known, that chalcogenide materials based on sulfide and selenide are the perspective film's forming materials for manufacturing of the interference coating. Among the known materials, the minimal absorption factors have arsenic chalcogenide films. It allows using them for manufacturing of the high quality optics in wide optical region, including optics for CO₂ powerful lasers.¹ Despite of good operational characteristics and the small optical losses, many of known chalcogenide materials have not received a wide distribution. One of the reasons of that is the absence of the data of their film's optical constants (OC) of these substances, which strongly depend on a way and conditions of manufacturing and are different from OC of initial monocrystals. In this paper the optical constants of the chalcogenide films various composition were described. Investigated films were manufacturing on fused quartz substrates by vacuum deposition. Initial substances As₂Se₃, AsSe₄, AsS₄ and AsS_16.2Se_16.2were evaporated from molybdenum hull in vacuum 3•10^-5 Pa. Refractive index and extinction coefficient dispersion in 0.5-2.5 μm spectral range were determined by method is based on analysis of the interference transmission spectra.

Citation Download Citation

Eugeny Nikolaevich Kotlikov, Vadim Nikolaevich Prokashev, and Alexey Nikolaevich Tropin "Optical properties of the chalcogenide films for interference coatings in IR spectral range", Proc. SPIE 6985, Fundamentals of Laser Assisted Micro- and Nanotechnologies, 698506 (15 January 2008); https://doi.org/10.1117/12.786942

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available