Broadband Optical Constants Measurement Device

Abstract

During the STTR Phase II program, Nanohmics designed and implemented prototype instrumentation - the Broadband Optical Characterization System (BOCS) - for the measurement of optical and thermal material properties of biological tissue. Fundamental to the device design is a large reflective optical element that enables measurement of the bidirectional scatter distribution function (BSDF) at video rates. A Python postprocessing software suite -BOCS Analysis - applied to the captured BSDF imagery enables estimation of the scattering coefficient, absorption coefficient, Henyey-Greenstein scattering anisotropy factor, and extinction coefficient. Through integration of a tunable source and automation of instrumentation and temperature control hardware, the BOCS can readily characterize tissue samples as a function of wavelength, temperature, or during dynamic events such as high energy laser (HEL) exposure.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2023
Accession Number
AD1201896

Entities

People

  • Alexander P. Greis
  • Joel N. Bixler

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Accuracy
  • Air Force Research Laboratories
  • Angle Of Incidence
  • Anisotropy
  • Broadband
  • Coefficients
  • Detection
  • Detectors
  • Distribution Functions
  • Focal Plane Arrays
  • Focal Planes
  • High Energy
  • High Energy Lasers
  • Instrumentation
  • Materials
  • Measurement
  • Optical Properties
  • Optics
  • Power Meters
  • Radiation
  • Reflectance
  • Refractive Index

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Oncology and Biomarker-Based Cancer Detection.
  • Spectroscopy.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers