Infoscience

Journal article

Towards a room temperature polariton amplifier

We engineer a semiconductor microcavity through an appropriate choice of geometry and materials in order to maximise the exciton-photon coupling. The polaritonic nonlinearities in such devices survive at high temperatures and high excitation densities. We measure parametric polariton amplification up to 220 K in CdTe microcavities and up to 120 K in GaAs ones. The amplification is also outstanding, reaching as much as 5000 at low temperature. The experimental observations suggest that the operating temperature can be further improved by optimising the present technology, so that a real-world polariton amplifier appears no more as a mirage.

    Keywords: SEMICONDUCTOR MICROCAVITIES ; STIMULATED SCATTERING ; EMISSION ; COHERENT ; EXCITONS ; DEVICES ; GAIN

    Note:

    Swiss Fed Inst Technol, Dept Phys, CH-1015 Lausanne, Switzerland. CNRS, L2M, F-92225 Bagneux, France. Univ Grenoble 1, Spectrometrie Phys Lab, F-38402 St Martin Dheres, France. Univ Cagliari, Dipartimento Fis, Cagliari, Italy. Univ Cagliari, INFM, Cagliari, Italy. Saba, M, Swiss Fed Inst Technol, Dept Phys, CH-1015 Lausanne, Switzerland.

    ISI Document Delivery No.: 552MB

    Times Cited: 4

    Cited Reference Count: 20

    Cited References:

    BLOCH J, 1998, APPL PHYS LETT, V73, P1694

    CIUTI C, 2000, PHYS REV B, V62, R4825

    CIUTI C, 2001, PHYS REV B, V63

    DASBACH G, 2000, PHYS REV B, V62, P13076

    ERLAND J, 2001, PHYS REV LETT, V86, P5791

    HOUDRE R, 2000, PHYS REV LETT, V85, P2793

    HUANG R, 2000, PHYS REV B, V61, R7854

    IMAMOGLU A, 1996, PHYS REV A, V53, P4250

    KELKAR PV, 1997, PHYS REV B, V56, P7564

    KENNEDY SP, 2001, PHYS REV LETT, V86, P4148

    LIDZEY DG, 1998, NATURE, V395, P53

    LIDZEY DG, 2000, SCIENCE, V288, P1620

    MESSIN G, 2001, PHYS REV LETT, V87

    PEARTON SJ, 1999, J APPL PHYS, V86, P1

    PONCE FA, 1997, NATURE, V386, P351

    SABA M, 2001, UNPUB NATURE

    SAVVIDIS PG, 2000, PHYS REV LETT, V84, P1547

    STEVENSON RM, 2000, PHYS REV LETT, V85, P3680

    WEISBUCH C, 1992, PHYS REV LETT, V69, P3314

    YAMAMOTO Y, 2000, NATURE, V405, P629

    Reference

    Record created on 2007-08-31, modified on 2016-08-08

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