2014
Digaum, Jennefir L; Pazos, Javier J; Chiles, Jeffrey; D’Archangel, Jeffrey; Padilla, Gabriel; Tatulian, Adrian; Rumpf, Raymond C; Fathpour, Sasan; Boreman, Glenn D; Kuebler, Stephen M
Tight control of light beams in photonic crystals with spatially-variant lattice orientation Journal Article
In: Optics express, vol. 22, no. 21, pp. 25788-25804, 2014, ISSN: 1094-4087.
Abstract | Links | BibTeX | Tags: low index materials, spatially variant photonic crystals
@article{RN93,
title = {Tight control of light beams in photonic crystals with spatially-variant lattice orientation},
author = {Jennefir L Digaum and Javier J Pazos and Jeffrey Chiles and Jeffrey D’Archangel and Gabriel Padilla and Adrian Tatulian and Raymond C Rumpf and Sasan Fathpour and Glenn D Boreman and Stephen M Kuebler},
url = {https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-22-21-25788&id=303042},
doi = {https://doi.org/10.1364/OE.22.025788},
issn = {1094-4087},
year = {2014},
date = {2014-02-01},
journal = {Optics express},
volume = {22},
number = {21},
pages = {25788-25804},
abstract = {Spatially-variant photonic crystals (SVPCs), in which the orientation of the unit cell changes as a function of position, are shown to be capable of abruptly controlling light beams using just low index materials and can be made to have high polarization selectivity. Multi-photon direct laser writing in the photo-polymer SU-8 was used to fabricate three-dimensional SVPCs that direct the flow of light around a 90 degree bend. The lattice spacing and fill factor were maintained nearly constant throughout the structure. The SVPCs were characterized at a wavelength of 2.94 μm by scanning the faces with optical fibers and the results were compared to electromagnetic simulations. The lattices were shown to direct infrared light of one polarization through sharp bends while the other polarization propagated straight through the SVPC. This work introduces a new scheme for controlling light that should be useful for integrated photonics.},
keywords = {low index materials, spatially variant photonic crystals},
pubstate = {published},
tppubtype = {article}
}
Spatially-variant photonic crystals (SVPCs), in which the orientation of the unit cell changes as a function of position, are shown to be capable of abruptly controlling light beams using just low index materials and can be made to have high polarization selectivity. Multi-photon direct laser writing in the photo-polymer SU-8 was used to fabricate three-dimensional SVPCs that direct the flow of light around a 90 degree bend. The lattice spacing and fill factor were maintained nearly constant throughout the structure. The SVPCs were characterized at a wavelength of 2.94 μm by scanning the faces with optical fibers and the results were compared to electromagnetic simulations. The lattices were shown to direct infrared light of one polarization through sharp bends while the other polarization propagated straight through the SVPC. This work introduces a new scheme for controlling light that should be useful for integrated photonics.