Optical loss of photochromic polymer films

Song Yun Cho, Eunkyoung Kim

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

Optical loss of polymer films containing photochromic molecules were investigated. Perfluoroalkyl methacrylates containing carbonate or carbamate group were synthesized to improve optical and adhesion properties of the polymerized film. Transparent polymer films were prepared by photocuring of a solution containing the perfluoroalkyl methacrylates and a photo initiator. Optical loss lower than 0.35 dB/cm at 1550 nm was determined from the photo cured film without photochromophore, for the TE polarization by measuring the transmitted power along the slab waveguide length. Photochromic polymer films were prepared by photocuring of the perfluoroalkyl methacrylates solution containing diarylethenes as a photochromophore. The resultant photochromic films showed reversible color change plus photo induced refractive index change upon excitation with a light. Optical loss of the photochromic film (@ 1550 nm) at colorless state was determined as 0.27 dB/cm. Optical loss of the photochromic film at colored state was similar to that of the colorless state. The photochromic films showed optical and refractive index tunability by light under very low optical loss.

Original languageEnglish
Pages (from-to)282-292
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4991
DOIs
Publication statusPublished - 2003 Nov 27

Fingerprint

Optical losses
Polymer films
Polymers
Methacrylates
polymers
Refractive index
Optical films
Carbamates
Carbonates
Refractive Index
Diarylethene
Waveguides
Adhesion
refractivity
Polarization
Color
Molecules
initiators
Waveguide
carbonates

All Science Journal Classification (ASJC) codes

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

Cite this

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Optical loss of photochromic polymer films. / Cho, Song Yun; Kim, Eunkyoung.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4991, 27.11.2003, p. 282-292.

Research output: Contribution to journalConference article

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AU - Kim, Eunkyoung

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AB - Optical loss of polymer films containing photochromic molecules were investigated. Perfluoroalkyl methacrylates containing carbonate or carbamate group were synthesized to improve optical and adhesion properties of the polymerized film. Transparent polymer films were prepared by photocuring of a solution containing the perfluoroalkyl methacrylates and a photo initiator. Optical loss lower than 0.35 dB/cm at 1550 nm was determined from the photo cured film without photochromophore, for the TE polarization by measuring the transmitted power along the slab waveguide length. Photochromic polymer films were prepared by photocuring of the perfluoroalkyl methacrylates solution containing diarylethenes as a photochromophore. The resultant photochromic films showed reversible color change plus photo induced refractive index change upon excitation with a light. Optical loss of the photochromic film (@ 1550 nm) at colorless state was determined as 0.27 dB/cm. Optical loss of the photochromic film at colored state was similar to that of the colorless state. The photochromic films showed optical and refractive index tunability by light under very low optical loss.

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