Far-infrared photon absorption by phonons in ZnTe crystals

Brazis, R.; Nausewicz, D.

doi:10.1016/j.optmat.2007.02.040

Cited by 10 publications

(2 citation statements)

References 17 publications

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“…Its optical properties have been extensively studied in the frequency-domain. Based on Raman scattering [9,10] and infrared absorption spectra [11,12], the first-and second-order vibrational modes of ZnTe were accurately assigned. Some of these modes were also detected in the time-domain [13,14].…”

Section: Introductionmentioning

confidence: 99%

Direct observation of two-phonon bound states in ZnTe

Misochko

Nakamura

2011

Phys. Rev. B

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A coherent two-phonon bound state has been impulsively generated in ZnTe(110) via second-order Raman scattering in the time domain for the first time. The two-phonon bound state, composed of two anticorrelated in wave vector acoustic phonons, exhibits full {\Gamma}1 symmetry and has energy higher than the corresponding 2TA(X) overtone. By suppressing two-phonon fluctuations with a double-pulse excitation, the coexistence of coherently excited bound and unbound two-phonon states has been demonstrated.Comment: 14 pages, 4 figures, This paper is accepted for publication in Phys. Rev.

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Section: Introductionmentioning

confidence: 99%

Direct observation of two-phonon bound states in ZnTe

Misochko

Nakamura

2011

Phys. Rev. B

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“…Minor 2TA overtone contribution is also present. The strongest photon-two-phonon coupling takes place for LA-TO(100) transitions [23], and the weakest coupling is for TA-LO(111). Gallot et al [19] deduced from the low-frequency scope of the resonance frequency ν TO = 5.32 THz, and the damping factor γ TO /ν TO ≈ 4.7 × 10 -3 .…”

Section: Phonon Transition Channelsmentioning

confidence: 99%

Phonon‐ and electron‐related far‐infrared absorption in CdTe and ZnTe crystals

Brazis¹,

Nausewicz²,

Raguotis³

2007

Physica Status Solidi (b)

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PACS 78.30.Fs Constants characterising the efficiency of far-infrared (FIR) photon coupling to phonon sum and difference combination processes are elucidated from existing experimental data in CdTe and ZnTe crystals. Two-phonon difference processes are concluded to play leading role in the FIR absorption in the range of 1 -4 THz. LO phonon band population inversion relative to LA band at the same phonon momentum is revealed in electric field acting on the conduction-band electrons using Monte Carlo method. Radiative decay of acumulated LO phonons and daughter TO and LA phonons is considered.

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Rotatable-Polarisation Terahertz Time-Domain Spectroscopy of Anisotropic Media

Mosley

2021

Enhanced Polarisation Control and Extreme Electric Fields

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Far-infrared photon absorption by phonons in ZnTe crystals

Cited by 10 publications

References 17 publications

Direct observation of two-phonon bound states in ZnTe

Direct observation of two-phonon bound states in ZnTe

Phonon‐ and electron‐related far‐infrared absorption in CdTe and ZnTe crystals

Rotatable-Polarisation Terahertz Time-Domain Spectroscopy of Anisotropic Media

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