Excitonic dynamical Franz-Keldysh effect.

K.B. Nordstrøm; Kristinn Johnsen; S.J. Allen; Antti-Pekka Jauho; B. Birnir; J. Kono; T. Noda; H. Akiyama; H. Sakaki

doi:10.1103/PhysRevLett.81.457

Excitonic dynamical Franz-Keldysh effect.

K.B. Nordstrøm
, Kristinn Johnsen
, S.J. Allen
, Antti-Pekka Jauho
, B. Birnir
, J. Kono
, T. Noda
, H. Akiyama
, H. Sakaki

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

The dynamical Franz-Keldysh effect is exposed by exploring near-band-gap absorption in the presence of intense THz electric fields. It bridges the gap between the de Franz-Keldysh effect and multiphoton absorption and competes with the THz ac Stark effect in shifting the energy of the excitonic resonance. A theoretical model which includes the strong THz field nonperturbatively via a nonequilibrium Green functions technique is able to describe the dynamical Franz-Keldysh effect in the presence of excitonic absorption.

Original language	English
Journal	Physical Review Letters
Volume	81
Issue number	2
Pages (from-to)	457-460
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.81.457
Publication status	Published - 1998

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Copyright (1998) by the American Physical Society.

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title = "Excitonic dynamical Franz-Keldysh effect.",

abstract = "The dynamical Franz-Keldysh effect is exposed by exploring near-band-gap absorption in the presence of intense THz electric fields. It bridges the gap between the de Franz-Keldysh effect and multiphoton absorption and competes with the THz ac Stark effect in shifting the energy of the excitonic resonance. A theoretical model which includes the strong THz field nonperturbatively via a nonequilibrium Green functions technique is able to describe the dynamical Franz-Keldysh effect in the presence of excitonic absorption.",

author = "K.B. Nordstr{\o}m and Kristinn Johnsen and S.J. Allen and Antti-Pekka Jauho and B. Birnir and J. Kono and T. Noda and H. Akiyama and H. Sakaki",

note = "Copyright (1998) by the American Physical Society.",

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AU - Nordstrøm, K.B.

AU - Johnsen, Kristinn

AU - Allen, S.J.

AU - Jauho, Antti-Pekka

AU - Birnir, B.

AU - Kono, J.

AU - Noda, T.

AU - Akiyama, H.

AU - Sakaki, H.

PY - 1998

Y1 - 1998

N2 - The dynamical Franz-Keldysh effect is exposed by exploring near-band-gap absorption in the presence of intense THz electric fields. It bridges the gap between the de Franz-Keldysh effect and multiphoton absorption and competes with the THz ac Stark effect in shifting the energy of the excitonic resonance. A theoretical model which includes the strong THz field nonperturbatively via a nonequilibrium Green functions technique is able to describe the dynamical Franz-Keldysh effect in the presence of excitonic absorption.

AB - The dynamical Franz-Keldysh effect is exposed by exploring near-band-gap absorption in the presence of intense THz electric fields. It bridges the gap between the de Franz-Keldysh effect and multiphoton absorption and competes with the THz ac Stark effect in shifting the energy of the excitonic resonance. A theoretical model which includes the strong THz field nonperturbatively via a nonequilibrium Green functions technique is able to describe the dynamical Franz-Keldysh effect in the presence of excitonic absorption.

U2 - 10.1103/PhysRevLett.81.457

DO - 10.1103/PhysRevLett.81.457

M3 - Journal article

SN - 0031-9007

VL - 81

SP - 457

EP - 460

JO - Physical Review Letters

JF - Physical Review Letters

IS - 2

ER -

Excitonic dynamical Franz-Keldysh effect.

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