Research

Polarization selection rules in exciton-based terahertz lasers


Reference:

Slavcheva, G. and V. Kavokin, A., 2013. Polarization selection rules in exciton-based terahertz lasers. Physical Review B, 88 (8), 085321.

Related documents:

[img]
Preview
PDF (Published version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (2845kB) | Preview

    Official URL:

    http://prb.aps.org/abstract/PRB/v88/i8/e085321

    Abstract

    Optical pumping of excited exciton states in semiconductor quantum wells is a tool for the realization of ultracompact terahertz (THz) lasers based on stimulated optical transition between excited (2p) and ground (1s) exciton states. We show that the probability of two-photon absorption by a 2p exciton is strongly dependent on the polarization of both photons. Variation of the threshold power for THz lasing by a factor of 5 is predicted by switching from linear to circular pumping. We calculate the polarization dependence of the THz emission and identify photon polarization configurations for achieving maximum THz photon generation quantum efficiency.

    Details

    Item Type Articles
    CreatorsSlavcheva, G.and V. Kavokin, A.
    DOI1098-0121/2013/88(8)/085321(9)
    DepartmentsFaculty of Science > Physics
    Publisher Statemente085321.pdf: ©2013 American Physical Society
    RefereedYes
    StatusPublished
    ID Code37469

    Export

    Actions (login required)

    View Item

    Document Downloads

    More statistics for this item...