NDLI: Magnetic field enhanced terahertz pulse emission from a femtosecond laser excited GaSb epitaxial layer

Content Provider	IET Digital Library
Author	Nevinskas, I. Vizbaras, K. Vizbaras, A. Trinkūnas, A. Krotkus, A.
Abstract	An undoped GaSb epitaxial layer has been grown on a GaAs substrate by molecular beam epitaxy. It has been found that GaSb could be a potential surface terahertz (THz) emitter photoexcited by 1.55 μm femtosecond laser pulses since the maximum optical-to-THz power conversion efficiency is at around this wavelength. The THz field strength is 10 dB weaker as compared with that generated from narrow-gap InAs at these energies of quanta. Furthermore, the samples were exposed to a constant magnetic field which enhances THz emission and allows signal registration in the line-of-sight geometry.
Starting Page	1627
Ending Page	1629
Page Count	3
ISSN	00135194
Volume Number	52
e-ISSN	1350911X
Issue Number	Issue 19, Sep (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/52/19
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2016.2216
Journal	Electronics Letters
Publisher Date	2016-08-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Femtosecond Laser Excited Epitaxial Layer GaAs Gallium Compound GaSb-GaAs II-VI And III-V SemiConductor III-V SemiConductor Line-of-sight Geometry Magnetic Field Enhanced Terahertz Pulse Emission Magneto-optical Device Magneto-optical Effect Magneto-optical Effect (condensed Matter) Microwave Photonics Molecular Beam Epitaxial Growth Molecular Beam Epitaxy Optical Property of II-VI And III-V SemiConductor Optical Pulse Generation Optical-to-THz Power Conversion Efficiency Photoexcitation Semiconductor Epitaxial Layer Semiconductor Growth Signal Registration Surface Terahertz Emitter Terahertz Wave Device Terahertz Wave Generation THz Emission Ultrafast Optical Measurement in Condensed Matter Vacuum Deposition Wavelength 1.55 Mum
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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