Circularly polarized fluorescence from light-emitting microcavities with sculptured-thin-film chiral reflectors |
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| Authors: | Jian Xu Akhlesh Lakhtakia An Chen |
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| Institution: | a Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, PA 16802-6812, USA
b Department of Physics, University of Otago, P.O. Box 56, Dunedin, New Zealand |
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| Abstract: | A light-emitting microcavity with sculptured-thin-film (STF) chiral reflectors is fabricated to produce narrowband circularly polarized (CP) light. The device is composed of a layer of fluorescent molecules (Alq3) sandwiched between two STF chiral reflectors to form a resonant microcavity with CP-selectivity, which emits narrowband left CP (LCP) and right CP (RCP) light upon photoexcitation. Our results also indicate the possibility of developing STF reflector-based diode laser devices delivering pure and controllable circular polarization. |
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| Keywords: | Polarization-sensitive devices Thin films Resonators Bragg reflectors Photoluminescence Integrated optics materials |
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