TY - JOUR
T1 - Probing Intervalence Band Coupling via High-Harmonic Generation in Binary Zinc-Blende Semiconductors
AU - Hagen, Maria K.
AU - Koch, Stephan W.
N1 - Funding Information:
The authors thank Dr. U. Huttner for his support in the early stages of this work. Parts of this work were supported by the Collaborative Research Center SFB 1083 funded by the Deutsche Forschungsgemeinschaft.
Publisher Copyright:
© 2021 The Authors. physica status solidi (RRL) Rapid Research Letters published by Wiley-VCH GmbH
PY - 2021/11
Y1 - 2021/11
N2 - A systematic microscopic theory is presented for high-harmonic generation in III–V semiconductors that are excited by strongly detuned high-intensity electromagnetic pulses. As a mechanism for the appearance of even harmonic orders, the quantum interference of different transition paths is analyzed. For the binary zinc-blende semiconductors, InAs, InP, and GaAs, the intensity ratio between even- and odd-order harmonic emission depends on the strength of the respective intervalence band dipole coupling. However, the large intervalence band dipole in InP leads to even and odd harmonics of similar intensity, no or only very minor even-order emission due to quantum interference is predicted for InAs where the fundamental transition is strongly favored over intervalence band transitions.
AB - A systematic microscopic theory is presented for high-harmonic generation in III–V semiconductors that are excited by strongly detuned high-intensity electromagnetic pulses. As a mechanism for the appearance of even harmonic orders, the quantum interference of different transition paths is analyzed. For the binary zinc-blende semiconductors, InAs, InP, and GaAs, the intensity ratio between even- and odd-order harmonic emission depends on the strength of the respective intervalence band dipole coupling. However, the large intervalence band dipole in InP leads to even and odd harmonics of similar intensity, no or only very minor even-order emission due to quantum interference is predicted for InAs where the fundamental transition is strongly favored over intervalence band transitions.
KW - high-harmonic generation
KW - intervalence band coupling
KW - quantum interferences
KW - semiconductor theory
KW - strong-field excitation
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U2 - 10.1002/pssr.202100397
DO - 10.1002/pssr.202100397
M3 - Article
AN - SCOPUS:85114984045
SN - 1862-6254
VL - 15
JO - Physica Status Solidi - Rapid Research Letters
JF - Physica Status Solidi - Rapid Research Letters
IS - 11
M1 - 2100397
ER -