学術雑誌論文

学術雑誌論文

text

Applied Physics Letters. 2006, 89(23), p. 231913-231913

Tunable single photonic defect-mode in cholesteric liquid crystals with laser-induced local modifications of helix

AIP Publishing

英語

text

2006-12-05

https://doi.org/10.1063/1.2400070

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Hiroyuki Yoshida, Chee Heng Lee, Akihiko Fujii, and Masanori Ozaki, Appl. Appl. Phys. Lett. 89, 231913 (2006) and may be found at https://doi.org/10.1063/1.2400070.

The authors demonstrate a tunable single photonic defect-mode in a single cholesteric liquid crystal material based on a structural defect introduced by local modification of the helix. An unpolymerized region of cholesteric liquid crystal acting as the defect was left between two polymerized regions via a two-photon excitation laser-lithography process. Upon polymerization, the cholesteric liquid crystal helix elongated and became thermally stable, and a single photonic defect mode was exhibited due to the contrast in the helix pitch at the defect. The defect mode showed tunability upon heating, and a 36nm redshift was seen over a temperature range of 30℃. The authors thank Merck KGaA for the PChLC materials. This work is partly supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan.

75659

Tunable single photonic defect-mode in cholesteric liquid crystals with laser-induced local modifications of helix

AIP Publishing

英語

2006-12-05

Applied Physics Letters

89

23

231913

231913

https://doi.org/10.1063/1.2400070

https://hdl.handle.net/11094/75659