Abstract

Lasing in induced cholesteric liquid crystal (CLC) containing highly photosensitive azo chiral dopant (ChD) and pyrromethene laser dye was investigated. Due to the absence of excitation energy transfer from the dye molecules to the molecules of ChD in such a system, a low lasing threshold was achieved. When using violet and green light-emitting diodes, reversible frequency tuning was obtained in the range of about 30 nm with a tuning time 1–2 orders of magnitude smaller than in conventional CLC laser systems based on azo and azoxy photosensitive compounds. Further increase of the intensity of the excitation light by using a green laser pointer allowed us to achieve a record phototuning speed (21nm in 148 ms).

© 2014 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Reversible phototuning of lasing frequency in dye doped cholesteric liquid crystal and ways to improve it [Invited]

Igor P. Ilchishin, Longin N. Lisetski, and Taras V. Mykytiuk
Opt. Mater. Express 1(8) 1484-1493 (2011)

Optical filter with tunable wavelength and bandwidth based on phototunable cholesteric liquid crystals

Andy Ying-Guey Fuh, Shau-Jung Ho, Shing-Trong Wu, and Ming-Shian Li
Appl. Opt. 53(8) 1658-1662 (2014)

Spatially band-tunable color-cone lasing emission in a dye-doped cholesteric liquid crystal with a photoisomerizable chiral dopant

C.-R. Lee, S.-H. Lin, H.-S. Ku, J.-H. Liu, P.-C. Yang, C.-Y. Huang, H.-C. Yeh, T.-D. Ji, and C.-H. Lin
Opt. Lett. 35(9) 1398-1400 (2010)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription