Low-threshold lasing at the edge of a photonic stop band in cholesteric liquid crystals
- 1 November 1998
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 23 (21) , 1707-1709
- https://doi.org/10.1364/ol.23.001707
Abstract
Low-threshold lasing is observed at the edge of the stop band of a one-dimensional structure—a dye-doped cholesteric liquid-crystal film. The mode closest to the edge has the lowest lasing threshold. The rates of spontaneous and stimulated emission are suppressed within the stop band and enhanced at the band edge. The ratio of right to left circularly polarized spontaneous emission is in good agreement with calculated density of photon states.Keywords
This publication has 12 references indexed in Scilit:
- New fabrication techniques for high quality photonic crystalsJournal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, 1997
- Measurement of spontaneous-emission enhancement near the one-dimensional photonic band edge of semiconductor heterostructuresPhysical Review A, 1996
- Detecting of the Structure Distortion of Cholesteric Liquid Crystal Using the Generation Characteristics of the Distributed Feedback Laser Based on ItMolecular Crystals and Liquid Crystals, 1995
- Localization of Superradiance near a Photonic Band GapPhysical Review Letters, 1995
- The photonic band edge laser: A new approach to gain enhancementJournal of Applied Physics, 1994
- Donor and acceptor modes in photonic band structurePhysical Review Letters, 1991
- Photonic band structure: The face-centered-cubic casePhysical Review Letters, 1989
- Strong localization of photons in certain disordered dielectric superlatticesPhysical Review Letters, 1987
- Inhibited Spontaneous Emission in Solid-State Physics and ElectronicsPhysical Review Letters, 1987
- Coupled-Wave Theory of Distributed Feedback LasersJournal of Applied Physics, 1972