Polarization sensitive beam bending using a spatially variant photonic crystal

Jennefir L. Digaum; Javier Pazos; Raymond Rumpf; Jeff Chiles; Sasan Fathpour; Jeremy N. Thomas; Stephen M. Kuebler

doi:10.1117/12.2076829

27 February 2015 Polarization sensitive beam bending using a spatially variant photonic crystal

Jennefir L. Digaum, Javier Pazos, Raymond Rumpf, Jeff Chiles, Sasan Fathpour, Jeremy N. Thomas, Stephen M. Kuebler

Proceedings Volume 9371, Photonic and Phononic Properties of Engineered Nanostructures V; 93710I (2015) https://doi.org/10.1117/12.2076829
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

A spatially-variant photonic crystal (SVPC) that can control the spatial propagation of electromagnetic waves in three dimensions with high polarization sensitivity was fabricated and characterized. The geometric attributes of the SVPC lattice were spatially varied to make use of the directional phenomena of self-collimation to tightly bend an unguided beam coherently through a 90 degree angle. Both the lattice spacing and the fill factor of the SVPC were maintained to be nearly constant throughout the structure. A finite-difference frequency-domain computational method confirms that the SVPC can self-collimate and bend light without significant diffuse scatter caused by the bend. The SVPC was fabricated using multi-photon direct laser writing in the photo-polymer SU-8. Mid-infrared light having a vacuum wavelength of λ0 = 2.94 μm was used to experimentally characterize the SVPCs by scanning the sides of the structure with optical fibers and measuring the intensity of light emanating from each face. Results show that the SVPC is capable of directing power flow of one polarization through a 90-degree turn, confirming the self-collimating and polarization selective light-guiding properties of the structures.

Citation Download Citation

Jennefir L. Digaum, Javier Pazos, Raymond Rumpf, Jeff Chiles, Sasan Fathpour, Jeremy N. Thomas, and Stephen M. Kuebler "Polarization sensitive beam bending using a spatially variant photonic crystal", Proc. SPIE 9371, Photonic and Phononic Properties of Engineered Nanostructures V, 93710I (27 February 2015); https://doi.org/10.1117/12.2076829

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Photonic crystals

Optical fibers

Polarization

Scanning electron microscopy

Dielectric polarization

Control systems

Waveguides

Show All Keywords

Keywords/Phrases

Search In:

Publication Years