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Liquid-Crystal Electric Tuning of a Photonic Crystal Laser

Research Area: Nanophotonics Year: 2004
Type of Publication: Article Keywords: nematic liquid crystals, photonic crystals, laser tuning, spectral line shift
Authors: Maune, Brett; Loncar, Marko; Witzens, Jeremy; Hochberg, Michael; Baehr-Jones, Tom; Psaltis, D.; Scherer, Axel
Journal: Applied Physics Letters Volume: 85
Number: 3 Pages: 360-362
Month: July
Abstract:
An electrically tuned nematic liquid-crystal (LC) infiltrated photonic crystal (PC) laser is demonstrated. This PC laser represents an emerging class of nanoscale optical adaptive devices enabled by the convergence of nonlinear optical materials, electronics, and fluidics that promise increased functionality and utility over existing technologies. A LC cell is constructed by encasing the PC laser between two indium tin oxide glass plates, which serve as the modulating electrodes. Applying a voltage across the cell realigns the LC, modifies the laser cavity's optical path length, and blueshifts the lasing wavelength.
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