Angle-Resonant Stimulated Polariton Amplifier

Journal Article · Mon Feb 14 04:00:00 EST 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.84.1547· OSTI ID:20215551

Savvidis, P G ^[1]; Baumberg, J J ^[1]; Stevenson, R M ^[2]; Skolnick, M S ^[2]; Whittaker, D M ^[3]; Roberts, J S ^[4]

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1. Department of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, (United Kingdom)
2. Department of Physics, University of Sheffield, Sheffield S3 7RH, (United Kingdom)
3. Toshiba Research Europe Ltd., Cambridge CB4 4WE, (United Kingdom)
4. Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 3JD, (United Kingdom)

We experimentally demonstrate resonant coupling between photons and excitons in microcavities which can efficiently generate enormous single-pass optical gains approaching 100. This new parametric phenomenon appears as a sharp angular resonance of the incoming pump beam, at which the moving excitonic polaritons undergo very large changes in momentum. Ultrafast stimulated scattering is clearly identified from the exponential dependence on pump intensity. This device utilizes boson amplification induced by stimulated energy relaxation. (c) 2000 The American Physical Society.

• OSTI ID: 20215551
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 7 Vol. 84; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRON GAS
ENTROPY
FERMI GAS
GROUND STATES
IMPURITIES
KONDO EFFECT
MAGNETIC SUSCEPTIBILITY
SPECIFIC HEAT
TEMPERATURE DEPENDENCE
THEORETICAL DATA