Superlinear increase of photocurrent due to stimulated scattering into a polariton condensate

D. M. Myers; B. Ozden; M. Steger; E. Sedov; A. Kavokin; K. West; L. N. Pfeiffer; D. W. Snoke

doi:10.1103/PhysRevB.98.045301

Superlinear increase of photocurrent due to stimulated scattering into a polariton condensate

D. M. Myers, B. Ozden, M. Steger, E. Sedov, A. Kavokin, K. West, L. N. Pfeiffer, D. W. Snoke

Division of Engineering and Science (Abington)

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We show that when a monopolar current is passed through an n-i-n structure, superlinear photocurrent response occurs when there is a polariton condensate. This is in sharp contrast to the previously observed behavior for a standard semiconductor laser. Theoretical modeling shows that this is due to a stimulated exciton-exciton scattering process in which one exciton relaxes into the condensate, while another one dissociates into an electron-hole pair.

Original language	English (US)
Article number	045301
Journal	Physical Review B
Volume	98
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.98.045301
State	Published - Jul 2 2018

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.98.045301

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abstract = "We show that when a monopolar current is passed through an n-i-n structure, superlinear photocurrent response occurs when there is a polariton condensate. This is in sharp contrast to the previously observed behavior for a standard semiconductor laser. Theoretical modeling shows that this is due to a stimulated exciton-exciton scattering process in which one exciton relaxes into the condensate, while another one dissociates into an electron-hole pair.",

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AU - Ozden, B.

AU - Steger, M.

AU - Sedov, E.

AU - Kavokin, A.

AU - West, K.

AU - Pfeiffer, L. N.

AU - Snoke, D. W.

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N2 - We show that when a monopolar current is passed through an n-i-n structure, superlinear photocurrent response occurs when there is a polariton condensate. This is in sharp contrast to the previously observed behavior for a standard semiconductor laser. Theoretical modeling shows that this is due to a stimulated exciton-exciton scattering process in which one exciton relaxes into the condensate, while another one dissociates into an electron-hole pair.

AB - We show that when a monopolar current is passed through an n-i-n structure, superlinear photocurrent response occurs when there is a polariton condensate. This is in sharp contrast to the previously observed behavior for a standard semiconductor laser. Theoretical modeling shows that this is due to a stimulated exciton-exciton scattering process in which one exciton relaxes into the condensate, while another one dissociates into an electron-hole pair.

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Superlinear increase of photocurrent due to stimulated scattering into a polariton condensate

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