Extremely Narrowband and Cascaded Holographic Adjustable Range Tunable (ENCHART) Filter.

Abstract

In Phase I, Physical Optics Corporation's R&D Division (POC) designed and developed a new Extremely Narrowband Cascaded Holographic Adjustable Range Tunable (ENCHART) filter using two holographic Fabry Perot filters (HFPFs): a coarse filter to select the desired portion of the optical range, and an extremely narrow (0.1 A) bandwidth fine filter operating within this selected range at any arbitrary wavelength. The fine filter is an electrically tuned liquid crystal cell. All established objectives were exceeded and a proof of concept ENCHART prototype was fabricated. This technology was extended to and demonstrated in the violet blue region of the spectrum.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1995
Accession Number
ADA303047

Entities

People

  • Alexander Rizkin

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Analyzers
  • Argon Lasers
  • Bandwidth
  • Coatings
  • Contracts
  • Crystals
  • Experimental Data
  • Fabry Perot Interferometers
  • Filters
  • Geometry
  • Laser Beams
  • Lasers
  • Light Sources
  • Liquid Crystals
  • Measurement
  • Narrowband
  • Optics

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.