Wide-band self-collimation in a low-refractive-index hexagonal lattice

Abstract

Wide-angle, broadband self-collimation (SC) is demonstrated in a hexagonal photonic crystal (PhC) fabricated in a low-refractive-index photopolymer by multiphoton lithography. The PhC can be described as a hexagonal array of cylindrical air holes in a block of dielectric material having a low-refractive index. Optical characterization shows that the device strongly self-collimates light at near-infrared wavelengths that span 1360 to 1610 nm. SC forces light to flow along the extrusion direction of the lattice without diffractive spreading, even when light couples into the device at high oblique angles. Numerical simulations corroborate the experimental findings.

Document Details

Document Type
Pub Defense Publication
Publication Date
Apr 30, 2021
Source ID
10.1364/ol.421860

Entities

People

  • Chun Xia
  • Jimmy Touma
  • Manuel Martínez
  • Noel P. Martinez
  • Raymond C. Rumpf
  • Stephen M. Kuebler

Organizations

  • Air Force Research Laboratory
  • National Science Foundation
  • University of Central Florida
  • University of Texas at El Paso

Tags

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Nanofabrication and Microfabrication.
  • Optical Physics and Photonics.