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Lasing cholesteric capsules

1Dudok T.H., 1Savaryn V.I., 2Meyer C., 3Cherpak V.V., 3Fechan A.V., 4Lychkovskyy E.I., 5Pansu B. and 1Nastishin Yu.A.

1Vlokh Institute of Physical Optics, 23 Dragomanov Street, 79005 Lviv, Ukraine
2Laboratoire de Physique des Systemes Complexes, Universite de Picardie, Jules   Verne, 33 rue Saint-Leu, 80039 Amiens, France
3Lviv Polytechnic National University, S. Bandera Street, 12, 79013 Lviv, Ukraine 
4Lviv Danylo Halytsky National Medical University, Pekarska Street, 69, 79010    Lviv, Ukraine 
5Laboratoire de Physique des Solides, UMR 8502, Universite Paris-Sud, 91405   Orsay, France

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Abstract. We describe a compact point laser source based on dye-doped cholesteric encapsulated in a flexible polymer film. Optically pumped emission spectra of the capsule are experimentally studied.

Keywords:  mirrorless lasing, photonic bandgap, liquid crystal lasers

PACS: 42.55.Zz
UDC: 538.958+681.7.069.24
Ukr. J. Phys. Opt. 17 169-175
doi: 10.3116/16091833/17/4/169/2016
Received: 02.08.2016

Анотація. Описано компактне гнучке точкове лазерне джерело, створене шляхом капсулювання забарвленого флуоресцентним барвником холестерика в полімерну плівку. Досліджено спектри емісії цих капсул під дією оптичного збудження. 

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