Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 15, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3093476
Keywords
diffraction gratings; integrated optics; light polarisation; optical polarisers; plasmonics; quantum cascade lasers; stimulated emission
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Funding
- Air Force Office of Scientific Research (AFOSR MURI)
- Harvard Nanoscale Science and Engineering Center (NSEC)
- National Science Foundation
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The authors reported the plasmonic control of semiconductor laser polarization by means of metallic gratings and subwavelength apertures patterned on the laser emission facet. An integrated plasmonic polarizer can project the polarization of a semiconductor laser onto other directions. By designing a facet with two orthogonal grating-aperture structures, a polarization state consisting of a superposition of a linearly and right-circularly polarized light was demonstrated in a quantum cascade laser; a first step toward a circularly polarized laser.
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