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Micromachines 2012, 3(1), 180-193; doi:10.3390/mi3010180

Azimuthally Varying Guided Mode Resonance Filters

1 Center for Optoelectronics and Optical Communications, University of North Carolina at Charlotte, 9201 University City Blvd, Charlotte, NC 28262, USA 2 Holcombe Department of Electrical and Computer Engineering , Center for Optical Materials Science and Engineering Technologies, Clemson University, 215 Riggs Hall, Clemson, SC 29634, USA 3 EM Lab, W. M. Keck Center for 3D Innovation, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968, USA
* Author to whom correspondence should be addressed.
Received: 1 February 2012 / Revised: 8 March 2012 / Accepted: 14 March 2012 / Published: 15 March 2012
(This article belongs to the Special Issue Nano-photonic Devices)
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New and novel sensing schemes require optical functions with unconventional spatial light distributions, as well as complex spectral functionality. Micro-optical elements have shown some flexibility in their ability to spatially encode phase information using surface relief dielectrics. In this paper, we present a novel optical component that exploits the properties of optically resonant structures to make an azimuthally spatially varying spectral filter. The dispersive properties are quite unique with an angular resonance shift of 28 Deg/nm. This device is fabricated using techniques that are compatible with standard micro-electronic fabrication technologies.
Keywords: subwavelength gratings; resonant structures; spatially varying structures; guided waves; leaky modes subwavelength gratings; resonant structures; spatially varying structures; guided waves; leaky modes
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Roth, Z.A.; Srinivasan, P.; Poutous, M.K.; Pung, A.J.; Rumpf, R.C.; Johnson, E.G. Azimuthally Varying Guided Mode Resonance Filters. Micromachines 2012, 3, 180-193.

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