Infoscience

Journal article

Effect of lateral confinement on valence-band mixing and polarization anisotropy in quantum wires

The optical properties of high-quality V-groove GaAs/AlxGa1-xAs quantum wires have been investigated using low-temperature photoluminescence (PL) and photoluminescence excitation (PLE) techniques. We systematically study the evolution of PL and PLE spectra as a function of the wire size. This comparison allows us to analyze the modification of one-dimensional subbands with decreasing win thickness. We clarify the influence of surface corrugation and localization effects on PL and PLE spectra and we observe large polarization anisotropy unambiguously related to the one-dimensional character of our quantum wires. The results of a polarization analysis of the excitonic transitions are combined with a calculation of the electronic band structure to identify the nature of the transitions and the impact of two-dimensional quantum confinement on valence-band mixing. The observed large polarization anisotropy is directly compared to the effects predicted by a four-band k . p model calculation of the valence-band structure. The set of experimental results combined with our model calculations is consistent with a strong suppression of band-edge absorption in these one-dimensional structures. [S0163-1829(98)08319-2].

    Keywords: CHEMICAL-VAPOR-DEPOSITION ; OPTICAL-SPECTRA ; WELL STRUCTURES ; PHOTOLUMINESCENCE SPECTRA ; EXCITON POLARITONS ; ABSORPTION ; SPECTROSCOPY ; LUMINESCENCE ; EMISSION ; ARRAYS

    Note:

    Ecole Polytech Fed Lausanne, Dept Phys, CH-1015 Lausanne, Switzerland. Vouilloz, F, Ecole Polytech Fed Lausanne, Dept Phys, CH-1015 Lausanne, Switzerland.

    ISI Document Delivery No.: ZP518

    Times Cited: 53

    Cited Reference Count: 55

    Cited References:

    AKIYAMA H, 1996, PHYS REV B, V53, P4229

    BASTARD G, 1988, WAVE MECH APPL SEMIC

    BAUER GEW, 1988, PHYS REV B, V38, P6015

    BAUER GEW, 1991, PHYS REV B, V44, P5562

    BAUER GEW, 1992, SURF SCI, V267, P442

    BIASIOL G, 1996, APPL PHYS LETT, V69, P2710

    BIROTHEAU L, 1992, APPL PHYS LETT, V61, P3023

    BLOCH J, 1994, EUROPHYS LETT, V28, P501

    BOCKELMANN U, 1991, EUROPHYS LETT, V15, P215

    BOCKELMANN U, 1991, EUROPHYS LETT, V16, P601

    BRUNNER K, 1994, APPL PHYS LETT, V64, P3320

    CHEN AC, 1993, APPL PHYS LETT, V62, P1359

    CHRISTEN J, 1992, SURF SCI, V267, P257

    CINGOLANI R, 1992, PHYS REV LETT, V69, P1276

    CITRIN DS, 1991, PHYS REV B, V43, P11703

    FOUQUET JE, 1986, IEEE J QUANTUM ELECT, V22, P1799

    GAMMON D, 1995, APPL PHYS LETT, V67, P2391

    GAMMON D, 1996, PHYS REV LETT, V76, P3005

    GERSHONI D, 1990, PHYS REV LETT, V65, P1631

    GOLDONI G, 1996, APPL PHYS LETT, V69, P2965

    GURIOLI M, 1994, PHYS REV B, V50, P11817

    GUSTAFSSON A, 1995, APPL PHYS LETT, V67, P3673

    HAACKE S, 1996, SOLID STATE ELECTRON, V40, P299

    ILS P, 1995, PHYS REV B, V51, P4272

    JAHN U, 1996, PHYS REV B, V54, P2733

    JASKOLSKI W, 1995, P 4 INT C OPT EXC CO, V17

    JASKOLSKI W, 1996, PHYS REP, V271, P1

    KAJIKAWA Y, 1993, PHYS REV B, V47, P3649

    KAPON E, 1989, PHYS REV LETT, V63, P430

    KAPON E, 1992, APPL PHYS LETT, V60, P477

    KASH K, 1990, SURF SCI, V229, P245

    KIENER C, 1996, APPL PHYS LETT, V68, P2061

    KOHL M, 1988, PHYS REV B, V37, P10927

    KOHL M, 1989, PHYS REV LETT, V63, P2124

    KOHL M, 1990, PHYS REV B, V42, P2941

    LAGE H, 1991, PHYS REV B, V44, P6500

    LAMPEL G, 1968, PHYS REV LETT, V20, P491

    LUTTINGER JM, 1955, PHYS REV, V97, P869

    LUTTINGER JM, 1956, PHYS REV, V102, P1030

    MCINTYRE CR, 1992, PHYS REV B, V45, P9443

    MILLER RC, 1985, J LUMIN, V30, P520

    MILLER RC, 1988, J APPL PHYS, V64, P3647

    MOLENKAMP LW, 1988, PHYS REV B, V38, P4314

    OBERLI DY, 1995, NUOVO CIMENTO D, V17, P1641

    OGAWA T, 1991, PHYS REV B, V44, P8138

    RIBEIRO E, 1995, PHYS REV B, V51, P7890

    RINALDI R, 1994, PHYS REV B, V50, P11795

    ROSSI F, 1996, PHYS REV B, V53, P16462

    ROSSI F, 1996, PHYS REV LETT, V76, P3642

    SAMUELSON L, 1995, PHYS STATUS SOLIDI A, V152, P269

    SERCEL PC, 1991, PHYS REV B, V44, P5681

    TWARDOWSKI A, 1987, PHYS REV B, V35, P8144

    VOUILLOZ F, 1997, PHYS REV LETT, V78, P1580

    WEISBUCH C, 1981, SOLID STATE COMMUN, V37, P219

    WINKLER R, 1995, PHYS REV B, V51, P14395

    Reference

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

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