A room-temperature semiconductor spaser operating near 15 μm | Zendy

Richard A. Flynn | Zendy; C. S. Kim | Zendy; I. Vurgaftman | Zendy; M. Kim | Zendy; J. R. Meyer | Zendy; Antti Mäkinen | Zendy; K. Bussmann | Zendy; Liwei Cheng | Zendy; FowSen Choa | Zendy; James P. Long | Zendy

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A room-temperature semiconductor spaser operating near 15 μm

Author(s) -

Richard A. Flynn,

C. S. Kim,

I. Vurgaftman,

M. Kim,

J. R. Meyer,

Antti Mäkinen,

K. Bussmann,

Liwei Cheng,

FowSen Choa,

James P. Long

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.008954

Subject(s) - optics , materials science , optoelectronics , plasmon , surface plasmon polariton , surface plasmon , polariton , semiconductor , polarization (electrochemistry) , wavelength , physics , chemistry

Room temperature spasing of surface plasmon polaritons at 1.46 μm wavelength has been demonstrated by sandwiching a gold-film plasmonic waveguide between optically pumped InGaAs quantum-well gain media. The spaser exhibits gain narrowing, the expected transverse-magnetic polarization, and mirror feedback provided by cleaved facets in a 1-mm long cavity fabricated with a flip-chip approach. The 1.06-μm pump-threshold of ~60 kW/cm2 is in good agreement with calculations. The architecture is readily adaptable to all-electrical operation on an integrated microchip.

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