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Title: Systems having optical absorption layer for mid and long wave infrared and methods for making the same

Patent ·
OSTI ID:1107581

An optical system according to one embodiment includes a substrate; and an optical absorption layer coupled to the substrate, wherein the optical absorption layer comprises a layer of diamond-like carbon, wherein the optical absorption layer absorbs at least 50% of mid wave infrared light (3-5 .mu.m wavelength) and at least 50% of long wave infrared light (8-13 .mu.m wavelength). A method for applying an optical absorption layer to an optical system according to another embodiment includes depositing a layer of diamond-like carbon of an optical absorption layer above a substrate using plasma enhanced chemical vapor deposition, wherein the optical absorption layer absorbs at least 50% of mid wave infrared light (3-5 .mu.m wavelength) and at least 50% of long wave infrared light (8-13 .mu.m wavelength). Additional systems and methods are also presented.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore national Security, LLC. (Livermore, CA)
Patent Number(s):
8,545,995
Application Number:
12/637,638
OSTI ID:
1107581
Country of Publication:
United States
Language:
English

References (7)

Multidielectric mirror for carbon dioxide laser providing the mid infrared, in high reflectance with good protection against mechanical attack patent June 1989
Optical coating patent April 1984
Apparatus for directing plasma flow to coat internal passageways patent November 2008
Method and System for Coating Internal Surfaces Using Reverse-Flow Cycling patent-application September 2006
Application of diamond-like Carbon (DLC) coatings for gravitational wave detectors journal March 2004
Fluorine-containing abrasion-resistant optical thin film devices patent November 1999
Study of optical dumpers used in high vacuum system of interferometric gravitational wave detectors journal March 2006

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