Impact Ionization in InSb studied by THz-Pump-THz-probe spectroscopy

Hoffmann, Matthias C.; Hebling, J.; Hwang, Harold Y.; Keith, Ka-Lo Yeh; Nelson, Audrey

doi:10.1007/978-3-540-95946-5_216

Cited by 1 publication

(2 citation statements)

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“…This means the high-field nonlinear transport properties of semiconductors can no longer be ignored in engineering [93][94][95][96]. Although the high-field properties that affect transport on the nanometer and ultrashort time-period scales are not well understood, they can be investigated with intense THz pulse sources [97][98][99][100][101][102][103].…”

Section: Carrier Generation By Intense Terahertz Pulse Excitationmentioning

confidence: 99%

“…Carriers accelerated ballistically on ultra-short timescales can therefore be expected to gain kinetic energy more efficiently and thereby trigger carrier multiplication. However, insufficiently strong THz pulses generate few carriers [101], and various additional phenomena induced by them, such as phonon absorption [102], intervalley scattering [98], and exciton dissociation [60,113], obscure the carrier multiplication.…”

Section: Carrier Generation By Intense Terahertz Pulse Excitationmentioning

confidence: 99%

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Nonlinear Optical Phenomena Induced by Intense Single-Cycle Terahertz Pulses

Hirori

Tanaka

2013

IEEE J. Select. Topics Quantum Electron.

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Recent developments in high-power table-top terahertz (THz) pulse sources enable us to coherently drive low-energy transitions into the nonlinear regime and to study fascinating nonlinear effects in various materials. This review article describes a tilted-pulse-front pumping scheme with a LiNbO 3 crystal to generate intense single-cycle THz pulses. This scheme is capable of generating intense singlecycle THz pulses induce strong spectral modulations in the excitonic and band-edge absorption of ZnSe/ZnMgSSe multiple quantum wells (MQW). Furthermore, it is shown that a 1 MV/cm electric field of a THz pulse allows us to excite electrons from the valence to conduction band of GaAs/AlGaAs MQW and observe a bright exciton luminescence.

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