A tunable inverse-hemisphere-shaped Bragg grating sensor

Yunha Ryu, Kyoungsik Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this work, we investigated the diffraction of inverse-hemisphere shaped polymer grating. We fabricated an inversehemisphere- shaped grating structure using soft lithography of close-packed PS nanospheres that is easy and costeffective method. Then the diffraction wavelength shift induced from lattice change was measured. The periodicity of the grating was tuned by swelling in acetone. The measurement results suggest that the device can be used as a strain gauge or a chemical sensor.

Original languageEnglish
Title of host publicationNanoengineering
Subtitle of host publicationFabrication, Properties, Optics, and Devices X
Publication statusPublished - 2013
EventNanoengineering: Fabrication, Properties, Optics, and Devices X - San Diego, CA, United States
Duration: 2013 Aug 272013 Aug 29

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherNanoengineering: Fabrication, Properties, Optics, and Devices X
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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