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Curved infrared screens.

A Banerjee1, D Sliwinski, K P Stewart

  • 1Electronic Imaging Center and Electrical Engineering Department, New Jersey Institute of Technology,Newark, New Jersey 07102, USA.

Optics Letters
|May 19, 2010
PubMed
Summary
This summary is machine-generated.

For multiwavelength systems, curved infrared (IR) screens can be approximated as local flat screens. Experiments and simulations confirm this approximation is valid for cylindrically curved IR screens, validating their peak transmission performance.

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Area of Science:

  • Optics and Photonics
  • Infrared Technology
  • Materials Science

Background:

  • Curved optical surfaces are increasingly used in advanced systems.
  • The behavior of infrared (IR) screens in multiwavelength systems with curvature is not fully understood.
  • Approximating curved surfaces as locally flat is a common simplification, but its applicability to IR screens requires validation.

Purpose of the Study:

  • To investigate the validity of approximating curved infrared (IR) screens as a composition of local flat screens.
  • To analyze the impact of cylindrical curvature on the performance of IR screens in multiwavelength systems.
  • To experimentally and computationally assess the peak transmission of curved IR screens as a function of curvature.

Main Methods:

  • Utilized a combination of experimental measurements and computational simulations.
  • Monitored the peak transmission of cylindrically curved IR screens.
  • Varied the screen curvature to evaluate its effect on optical performance.

Main Results:

  • The approximation of curved IR screens as local flat screens was found to be valid for cylindrically curved geometries.
  • Peak transmission of the IR screens was successfully monitored and correlated with screen curvature.
  • Both experimental and simulation results demonstrated good agreement, supporting the approximation's validity.

Conclusions:

  • The first-order approximation of treating curved IR screens as locally flat screens is well-supported for cylindrical curvatures.
  • This finding simplifies the design and analysis of multiwavelength systems employing curved IR screens.
  • The study provides a validated approach for predicting the performance of curved IR screens in optical systems.