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Advanced Infrared Optical Coatings (AIROC)

  Wright-Patterson AFB, OH United States — Department of the Air Force, Air Force Materiel Command
Published November 23, 2015
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Notice type
Prior notice
Significant progress has previously been made under the Advanced Optical Coatings (AOC) and more recently the Advanced Development of Protection Technologies (ADePT) programs to advance the state of the art of optical coatings. The majority of the recent advancements have focused on the visible through near and into the short wave infrared wavelength regions (VIS, NIR and SWIR respectively). One filter example was the development of optical coating process control technology for rugate optical coatings. These unique, graded-index optical coatings had (at the time) never been demonstrated. Initial work was in the fabrication of ‘digital' rugate filters where the effective graded-index profile was composed of a large number of discreet high and low index material layers. Ongoing work led to the development of fully-mixed analog rugate filters where the high and low index materials were blended to create the desired index profile. In this time period, advances in the general optical coating industry lead to three key, enabling technologies: 1. Advancement in optical coating design methodologies such as enhanced thin film (ETF) and needle optimized designs.2. Improvements in monitoring and control techniques allowing for the fabrication of rugate and dense wavelength division multiplexing (DWDM) filter types.3. Advancements in deposition processes allowing stable sputtering (constant rate) and reliable (constant refractive index) thin film layers. Based on these advances, the cost effective fabrication of a wide range of high performance optical filters (e.g., notch, bandpass, dichroic, short pass, long pass) has been enabled at SWIR and shorter wavelengths. Similarly, to advance the state of the art in optical coatings for the medium wavelength infrared and/or long wavelength infrared (MWIR and LWIR respectively) regions, a broad-based perspective is required encompassing advanced coating designs, improvements in monitor and control techniques, and advancements in deposition processes.

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Fact Sheet

DATE
1123
YEAR
15
AGENCY
Department of the Air Force
OFFICE
Air Force Materiel Command
LOCATION
AFRL/RQK - WPAFB
ZIP
45433
CLASSCOD
A
NAICS
541712
OFFADD
AFRL/RQK
SUBJECT
Advanced Infrared Optical Coatings (AIROC)
SOLNBR
BAA-AFRL-RQKM-2016-0008
CONTACT
Brad Kneisly, Contract Negotiator, Phone (937) 713-9881, Email brad.kneisly@us.af.mil - Mark Merrifield, Contracting Officer, Phone (937) 713-9878, Email mark.merrifield@us.af.mil
DESC
Significant progress has previously been made under the Advanced Optical Coatings (AOC) and more recently the Advanced Development of Protection Technologies (ADePT) programs to advance the state of the art of optical coatings. The majority of the recent advancements have focused on the visible through near and into the short wave infrared wavelength regions (VIS, NIR and SWIR respectively). One filter example was the development of optical coating process control technology for rugate optical coatings. These unique, graded-index optical coatings had (at the time) never been demonstrated. Initial work was in the fabrication of ‘digital' rugate filters where the effective graded-index profile was composed of a large number of discreet high and low index material layers. Ongoing work led to the development of fully-mixed analog rugate filters where the high and low index materials were blended to create the desired index profile. In this time period, advances in the general optical coating industry lead to three key, enabling technologies:
URL
https://www.fbo.gov/spg/USAF/AFMC/AFRLWRS/BAA-AFRL-RQKM-2016-0008/listing.html
SETASIDE
N/A

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