Reduction of Absorption Spectra for NIR-SWIR Absorbing Dyes Using Critical Feature Identification and Projection

Abstract

This study describes a reduction of absorption spectra for NIR-SWIR absorbing dyes on cotton-fabric substrates for critical feature isolation and projection. The critical features are identified through a structural analysis of the peaks, troughs, and points of inflection in the calculated Kubelka-Munk absorption spectra from diffuse reflectance measurements. These features are then parameterized and projected into a reduced feature subspace to effectively capture the fundamental characteristics of the absorbing dyes. The critical feature parameterization and projection supports construction of parametric models capable of estimating dielectric functions for various dyes, substrates, and mixtures.

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Document Details

Document Type
Technical Report
Publication Date
Jan 24, 2023
Accession Number
AD1191925

Entities

People

  • Rachel Viger
  • Samuel G. Lambrakos
  • Scott A. Ramsey
  • Troy Mayo

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Acquisition
  • Amplitude
  • Case Studies
  • Coefficients
  • Construction
  • Department Of Defense
  • Diffraction
  • Dyes
  • Electronic Warfare
  • Fluorescent Dyes
  • Information Operations
  • Light Scattering
  • Linear Algebra
  • Materials
  • Measurement
  • Military Research
  • Optical Properties
  • Reflectance
  • Refraction
  • Refractive Index
  • Scattering
  • Spectra
  • Structural Analysis
  • Substrates

Readers

  • Approximation Theory.
  • Nanofabrication and Microfabrication.
  • Spectroscopy.