Accession Number:

AD1030442

Title:

High Efficiency Large-Angle Pancharatnam Phase Deflector Based on Dual Twist Design

Descriptive Note:

Technical Report

Corporate Author:

MIT Lincoln Laboratory Lexington United States

Report Date:

2016-12-16

Pagination or Media Count:

9.0

Abstract:

Pancharatnam made clear the concept of a phase-only device based on changes in the polarization state of light1. It was later shown that this concept could be used to make an optical device that could simulate a prism. We have previously shown through simulation that an optical beam deflector based on Pancharatnam phase can provide high efficiency with up to 80 deflection using a dual-twist structure for polarization state control2,3. In this report, we demonstrate that its optical performance is as predicted and far beyond what could be expected for a conventional diffractive optical device. We provide details about construction and characterization of a 40 beam steering device with 90 diffraction efficiency based on our dual-twist design at 633nm wavelength.

Subject Categories:

  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE