Far-infrared optical and dielectric response of ZnS measured by terahertz time-domain spectroscopy

L. Thamizhmani; Abul Kalam Azad; Jianming Dai; W. Zhang

doi:10.1063/1.1896451

Far-infrared optical and dielectric response of ZnS measured by terahertz time-domain spectroscopy

L. Thamizhmani
, Abul Kalam Azad
, Jianming Dai
, W. Zhang

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

The optoelectronic technique of terahertz time-domain spectroscopy (THz-TDS) has been applied to measure the frequency-dependent optical and dielectric properties of ZnS in the frequency range extending from 0.3 to 3.5 THz. THz-TDS clearly reveals the low-frequency phonon resonance features in both the single- and polycrystalline ZnS. These phonons account for the increased absorption as indicated by the resonance lines in the spectra. The measured index of refraction is found to be dominated by the transverse optical-phonon resonance, which is verified by a theoretical fit using the relation for the dielectric response of the damped harmonic oscillator.

Original language	English
Article number	131111
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	86
Issue number	13
DOIs	https://doi.org/10.1063/1.1896451
State	Published - Mar 28 2005
Externally published	Yes

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title = "Far-infrared optical and dielectric response of ZnS measured by terahertz time-domain spectroscopy",

abstract = "The optoelectronic technique of terahertz time-domain spectroscopy (THz-TDS) has been applied to measure the frequency-dependent optical and dielectric properties of ZnS in the frequency range extending from 0.3 to 3.5 THz. THz-TDS clearly reveals the low-frequency phonon resonance features in both the single- and polycrystalline ZnS. These phonons account for the increased absorption as indicated by the resonance lines in the spectra. The measured index of refraction is found to be dominated by the transverse optical-phonon resonance, which is verified by a theoretical fit using the relation for the dielectric response of the damped harmonic oscillator.",

author = "L. Thamizhmani and Azad, \{Abul Kalam\} and Jianming Dai and W. Zhang",

year = "2005",

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T1 - Far-infrared optical and dielectric response of ZnS measured by terahertz time-domain spectroscopy

AU - Thamizhmani, L.

AU - Azad, Abul Kalam

AU - Dai, Jianming

AU - Zhang, W.

PY - 2005/3/28

Y1 - 2005/3/28

N2 - The optoelectronic technique of terahertz time-domain spectroscopy (THz-TDS) has been applied to measure the frequency-dependent optical and dielectric properties of ZnS in the frequency range extending from 0.3 to 3.5 THz. THz-TDS clearly reveals the low-frequency phonon resonance features in both the single- and polycrystalline ZnS. These phonons account for the increased absorption as indicated by the resonance lines in the spectra. The measured index of refraction is found to be dominated by the transverse optical-phonon resonance, which is verified by a theoretical fit using the relation for the dielectric response of the damped harmonic oscillator.

AB - The optoelectronic technique of terahertz time-domain spectroscopy (THz-TDS) has been applied to measure the frequency-dependent optical and dielectric properties of ZnS in the frequency range extending from 0.3 to 3.5 THz. THz-TDS clearly reveals the low-frequency phonon resonance features in both the single- and polycrystalline ZnS. These phonons account for the increased absorption as indicated by the resonance lines in the spectra. The measured index of refraction is found to be dominated by the transverse optical-phonon resonance, which is verified by a theoretical fit using the relation for the dielectric response of the damped harmonic oscillator.

UR - https://www.scopus.com/pages/publications/17644384483

U2 - 10.1063/1.1896451

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SP - 1

EP - 3

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 13

M1 - 131111

ER -

Far-infrared optical and dielectric response of ZnS measured by terahertz time-domain spectroscopy

Abstract

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