Effect of a Magnetic Field on Wideband Terahertz Generation on the Surface of Semiconductors. / Antsygin, Valery D.; Mamrashev, Alexander A.; Nikolaev, Nazar A. et al.
In: IEEE Transactions on Terahertz Science and Technology, Vol. 5, No. 4, 7137677, 01.07.2015, p. 673-679.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Effect of a Magnetic Field on Wideband Terahertz Generation on the Surface of Semiconductors
AU - Antsygin, Valery D.
AU - Mamrashev, Alexander A.
AU - Nikolaev, Nazar A.
AU - Potaturkin, Oleg I.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - The effect of a magnetic field on the enhancement of the efficiency of terahertz (THz) generation on the surface of narrow-gap semiconductors is analyzed. A novel small-size THz generator is proposed. It consists of two permanent magnets with opposite magnetization placed on a yoke forming Kittel structure. The construction provides magnetic field concentration in the active zone of a semiconductor placed closely on top of the magnets. Its capabilities of converting femtosecond pulses of the first and second harmonics of an erbium fiber laser are investigated by THz time-domain spectrometer. n-InAs and η-InSb semiconductors in the magnetic field of 0.8 T prove to be the best THz generators at 775-and 1550-nm pump wavelengths correspondingly.
AB - The effect of a magnetic field on the enhancement of the efficiency of terahertz (THz) generation on the surface of narrow-gap semiconductors is analyzed. A novel small-size THz generator is proposed. It consists of two permanent magnets with opposite magnetization placed on a yoke forming Kittel structure. The construction provides magnetic field concentration in the active zone of a semiconductor placed closely on top of the magnets. Its capabilities of converting femtosecond pulses of the first and second harmonics of an erbium fiber laser are investigated by THz time-domain spectrometer. n-InAs and η-InSb semiconductors in the magnetic field of 0.8 T prove to be the best THz generators at 775-and 1550-nm pump wavelengths correspondingly.
KW - InAs
KW - InSb
KW - magnetic field
KW - narrow-gap semiconductor
KW - optical rectification
KW - photo-Dember effect
KW - terahertz (THz) generator
KW - THz spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=85027957528&partnerID=8YFLogxK
U2 - 10.1109/TTHZ.2015.2443493
DO - 10.1109/TTHZ.2015.2443493
M3 - Article
AN - SCOPUS:85027957528
VL - 5
SP - 673
EP - 679
JO - IEEE Transactions on Terahertz Science and Technology
JF - IEEE Transactions on Terahertz Science and Technology
SN - 2156-342X
IS - 4
M1 - 7137677
ER -
ID: 25326031