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Title: High resolution on-chip optical filter array based on double subwavelength grating reflectors

Journal Article · · Optics Express
DOI:https://doi.org/10.1364/OE.23.029848· OSTI ID:1241136
 [1];  [1];  [2];  [1]
  1. California Inst. of Technology (CalTech), Pasadena, CA (United States). T. J. Watson Laboratory of Applied Physics
  2. California Inst. of Technology (CalTech), Pasadena, CA (United States). T. J. Watson Laboratory of Applied Physics; Samsung Advanced Institute of Technology (SAIT), Suwon-si (South Korea)

An optical filter array consisting of vertical narrow-band Fabry-Pèrot (FP) resonators formed by two highly reflective high contrast subwavelength grating mirrors is reported. The filters are designed to cover a wide range of operation wavelengths ( Δλ/λ=5%) just by changing the in-plane grating parameters while the device thickness is maintained constant. In conclusion, operation in the telecom band with transmission efficiencies greater than 40% and quality factors greater than 1,000 are measured experimentally for filters fabricated on the same substrate.

Research Organization:
California Institute of Technology (CalTech), Pasadena, CA (United States); Energy Frontier Research Centers (EFRC) (United States). Light-Material Interactions in Energy Conversion (LMI)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0001293
OSTI ID:
1241136
Journal Information:
Optics Express, Vol. 23, Issue 23; ISSN 1094-4087
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

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Recent Advances in Resonant Waveguide Gratings journal July 2018
MEMS-tunable dielectric metasurface lens journal February 2018
Multichannel tunable narrowband mid-infrared optical filter based on phase-change material Ge 2 Sb 2 Te 5 defect layers journal January 2020
Flat-top bandpass filters enabled by cascaded resonant gratings journal January 2016
GaAs-based subwavelength grating on an AlOx layer for a vertical-cavity surface-emitting laser journal January 2020
A review of dielectric optical metasurfaces for wavefront control journal June 2018
MEMS-tunable dielectric metasurface lens conference January 2018
Wide bandwidth and high resolution planar filter array based on DBR-metasurface-DBR structures text January 2016

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