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

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.
Authors:
 [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)
Publication Date:
Grant/Contract Number:
SC0001293
Type:
Published Article
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 23; Journal Issue: 23; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Research Org:
California Inst. of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1225239
Alternate Identifier(s):
OSTI ID: 1241136