 |
 |
Journal articles
Liquid-Crystal alignment by a nanoimprinted grating for wafer-scale fabrication of tunable devices
Abstract : A simple technology is demonstrated for wafer-scale fabrication of liquid-crystal (LC) microcells that can be integrated in active optoelectronic devices. Fabrication of 1.55µm tunable Fabry-Perot optical micro-filter arrays is achieved owing to the insertion of a single nanoimprinted polymer grating dedicated to LC alignment and to the soft thermal transfer of a dry thick resist film between two highly reflective mirrors. The filter exhibits a spectral tuning range of 102nm with only 18V applied, as well as negligible internal loss, which makes it suitable for being inserted in a laser cavity. This constitutes a key step toward large-scale integration of widely-tunable photonic devices such as VCSELs using LC technology.
Cited literature [18 references]
https://hal.laas.fr/hal-01839878
Contributor : Véronique Bardinal <>
Submitted on : Monday, July 16, 2018 - 10:17:49 AM
Last modification on : Monday, February 22, 2021 - 3:34:44 PM
Long-term archiving on: : Wednesday, October 17, 2018 - 1:46:00 PM
Contributor : Véronique Bardinal <>
Submitted on : Monday, July 16, 2018 - 10:17:49 AM
Last modification on : Monday, February 22, 2021 - 3:34:44 PM
Long-term archiving on: : Wednesday, October 17, 2018 - 1:46:00 PM
File
sadani2018.pdf
Files produced by the author(s)