Unique spatial continuously tunable cone laser based on a dye-doped cholesteric liquid crystal with a birefringence gradient
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Abstract
The present study develops and investigates for the first time a unique spatial continuously tunable cone laser based on a dye-doped cholesteric liquid crystal (DDCLC) film with an LC-birefringence (Δn) gradient. A continuous Δn variation can be generated in a cell by diffusion and self-organization of CLC after four DDCLC mixtures with a discrete variation of Δn are successively injected into an empty cell. Not only the CLC photonic structure but also the lasing wavelength and the cone angle of the obtained conically symmetric emitted lasing ring can be tuned continuously by continuously changing the pumped position of the cell with an Δn gradient. The continuous tunabilities in the lasing wavelength and the corresponding emitted cone angle of the lasing ring are 605.8 → 568.1 nm and 29° → 50°, respectively, within a spatial interval of about 33 mm in the cell.
Keywords
Lasing Ring Oblique Angle Cell Position Cholesteric Liquid Crystal Lasing SignalNotes
Acknowledgments
The authors would like to thank the National Science Council of the Republic of China in Taiwan (Contract No. NSC 100-2112-M-006-012-MY3) and the Advanced Optoelectronic Technology Center, National Cheng Kung University, under projects from the Ministry of Education, for the financial support. We greatly appreciate the editorial assistance extended by KGSupport.
References
- 1.P.G. de Gennes, J. Prost, The Physics of Liquid Crystals (Oxford University Press, New York, 1993)Google Scholar
- 2.J.P. Dowling, M. Scalora, M.J. Bloemer, C.M. Bowden, J. Appl. Phys. 75, 1896 (1994)ADSCrossRefGoogle Scholar
- 3.L.S. Goldberg, J.M. Schnur: U.S. Patent 3,771,065, 1973Google Scholar
- 4.I.P. Il’chishin, E.A. Tikhonov, V.G. Tishchenko, M.T. Shpak, JETP Lett. 32, 24 (1980)ADSGoogle Scholar
- 5.V.I. Kopp, B. Fan, H.K.M. Vithana, A.Z. Genack, Opt. Lett. 23, 1707 (1998)ADSCrossRefGoogle Scholar
- 6.H. Finkelmann, S.T. Kim, A. Muñoz, P. Palffy-Muhoray, B. Taheri, Adv. Mater. 13, 1069 (2001)CrossRefGoogle Scholar
- 7.A. Fuh, T.-H. Lin, J.-H. Liu, F.-C. Wu, Opt. Express 12, 1857 (2004)ADSCrossRefGoogle Scholar
- 8.A. Chanishvili, G. Chilaya, G. Petriashvili, R. Barberi, R. Bartolino, G. Cipparrone, A. Mazzulla, R. Gimenez, L. Oriol, M. Pinol, Appl. Phys. Lett. 86, 051107 (2005)ADSCrossRefGoogle Scholar
- 9.Y. Huang, Y. Zhou, S.-T. Wu, Appl. Phys. Lett. 88, 011107 (2006)ADSCrossRefGoogle Scholar
- 10.M.-Y. Jeong, H. Choi, J.W. Wu, Appl. Phys. Lett. 92, 051108 (2008)ADSCrossRefGoogle Scholar
- 11.Shih-Hung Lin, Cang-Yi Shyu, Jui-Hsiang Liu, Po-Chih Yang, Ting-Shan Mo, Shuan-Yu. Huang, Chia-Rong Lee, Opt. Express 18, 9496 (2010)ADSCrossRefGoogle Scholar
- 12.C.-R. Lee, S.-H. Lin, H.-C. Yeh, T.-D. Ji, K.-L. Lin, T.-S. Mo, C.-T. Kuo, K.-Y. Lo, S.-H. Chang, Y.-G. Fuh, S.-Y. Huang, Opt. Express 17, 12910 (2009)ADSCrossRefGoogle Scholar
- 13.C.-R. Lee, S.-H. Lin, H.-C. Yeh, T.-D. Ji, Opt. Express 17, 22616 (2009)ADSCrossRefGoogle Scholar
- 14.C.-R. Lee, S.-H. Lin, H.-S. Ku, J.-H. Liu, P.-C. Yang, C.-Y. Huang, H.-C. Yeh, T.-D. Ji, Appl. Phys. Lett. 96, 111105 (2009)ADSCrossRefGoogle Scholar
- 15.C.-R. Lee, S.-H. Lin, H.-S. Ku, J.-H. Liu, P.-C. Yang, C.-Y. Huang, H.-C. Yeh, T.-D. Ji, C.-H. Lin, Opt. Lett. 35, 1398 (2010)ADSCrossRefGoogle Scholar