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A Compact Device for the Efficient, Electrically Driven Generation of Highly Circularly Polarized Light
Author(s) -
Grell M.,
Oda M.,
Whitehead K. S.,
Asimakis A.,
Neher D.,
Bradley D. D. C.
Publication year - 2001
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200104)13:8<577::aid-adma577>3.0.co;2-k
Subject(s) - materials science , optoelectronics , circular polarization , liquid crystal , cathode , light emitting diode , diode , electrode , optics , electrical engineering , physics , microstrip , quantum mechanics , engineering
A novel, compact, and simple‐to‐manufacture photon recycling device , which is driven by a polymer light emitting diode (LED), generates highly circularly polarized light. The device (see Figure) is based on a chiral nematic liquid crystal and it uses the metal cathode of the LED simultaneously as electrode and as recycling mirror of the recycling structure.