• 专利标题:   Optical device e.g. focal plane array (FPA) or charge coupled device (CCD) camera has layer of graphene that is configured to absorb and scatter portion of electromagnetic radiation incident on layer of graphene.
  • 专利号:   US2015171234-A1, WO2015088607-A1, US9397237-B2, EP3080661-A1, JP2017502505-W, JP6193500-B2
  • 发明人:   USHINSKY M, HAERI M
  • 专利权人:   RAYTHEON CO, RAYTHEON CO, RAYTHEON CO
  • 国际专利分类:   H01L027/146, H01L031/0216, G02B005/22, G02F001/35, H04N005/225, G02B005/20, H01L031/0232, H01L027/14, H04N005/369
  • 专利详细信息:   US2015171234-A1 18 Jun 2015 H01L-031/0216 201543 Pages: 18 English
  • 申请详细信息:   US2015171234-A1 US104472 12 Dec 2013
  • 优先权号:   US104472

▎ 摘  要

NOVELTY - The device has a sacrificial limiter filter that is configured to be destroyed by the laser radiation exceeding the predefined damage threshold, the sacrificial limiter filter includes layer of graphene disis mounted on the substrate. The layer of graphene is configured to absorb and scatter a portion of electromagnetic radiation incident on the layer of graphene. The layer of graphene further comprises polymer has the graphene. USE - Optical device e.g. focal plane array (FPA) or charge coupled device (CCD) camera (all claimed). ADVANTAGE - Although the introduction of a filtering/limiting component into an optical path results in changes to the optical and thermal performance, certain advantages of a graphene film are related to its thinness, unique optical transmission, saturated nonlinear absorption, and superior thermal and electrical conductivity. The limiting response is targeted to be adequate for specific formats and architectures of CCDs and to provide suitable localizations of laser damages, so the limiter is used after experiencing multiple shots from an incoming laser. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of fabricating a sacrificial limiter filter for an optical device. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the Broadband Graphene-Based Optical Limiter including a frontal arrangement of a single, dual- or multi-layer of graphene deposited onto a substrate of an optical device. Broadband Graphene-Based Optical Limiter (10) Limiter (100) FPA (102)