Infrared Dielectric Properties Determination of Single Crystal Based on Transmission Spectrum of Polycrystalline Powder

Zhenyou Wang; Haixin Wu; Mingsheng Mao; Youbao Ni; Changbao Huang; Pengfei Jiang; Weimin Han

doi:10.3788/AOS202040.2426001

Journals >Acta Optica Sinica >Volume 40 >Issue 24 >Page 2426001 > Article

Acta Optica Sinica
Vol. 40, Issue 24, 2426001 (2020)

Infrared Dielectric Properties Determination of Single Crystal Based on Transmission Spectrum of Polycrystalline Powder

Zhenyou Wang^1、2, Haixin Wu^1、2、*, Mingsheng Mao^1、2, Youbao Ni^1、2, Changbao Huang^1、2, Pengfei Jiang¹, and Weimin Han¹

Author Affiliations

¹Anhui Provincial Key Laboratory of Photonic Devices and Materials, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China

²Advanced Laser Technology Laboratory of Anhui Province, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China

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DOI: 10.3788/AOS202040.2426001 Cite this Article Set citation alerts

Zhenyou Wang, Haixin Wu, Mingsheng Mao, Youbao Ni, Changbao Huang, Pengfei Jiang, Weimin Han. Infrared Dielectric Properties Determination of Single Crystal Based on Transmission Spectrum of Polycrystalline Powder[J]. Acta Optica Sinica, 2020, 40(24): 2426001 Copy Citation Text

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Fig. 1. Transmission spectra of KBr pellet doped with ZGP powder and ZGP single crystal

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$Fitted curve of refractive index dispersion of ZGP crystal$

Fig. 3. Fitted curve of refractive index dispersion of ZGP crystal

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Number	Material	Refractive index (20 μm)	Frequency /cm^-1
D₁	NaCl	1.3822	431.7
D₂	KBr	1.4924	437.4
D₃	CsI	1.7370	456.9
D₄	AgCl	1.9069	481.8
D₅	ZnS	1.9230	485.0

Table 1. Frequencies and refractive indexes of the transmission peak of AGS powder pellets

Data	Simulation			Experiment
Data	ω_TO /cm^-1	ω_LO /cm^-1	λ_cutoff /μm	ω_TO /cm^-1	ω_LO /cm^-1	λ_cutoff /μm
D₁-D₄	365.1	410.3	12.2
D₁-D₃,D₅	365.0	410.3	12.2	368	392	13^[18]
D₁-D₅	365.1	410.4	12.2

Table 2. Infrared dielectric properties of AGS crystal

Number	Material	Refractiveindex (20 μm)	Frequency /cm^-1
D₁	NaCl	1.3822	410.8
D₂	KBr	1.4924	412.7
D₃	CsI	1.7370	414.6
D₄	AgCl	1.9069	416.6
D₅	ZnS	1.9230	417.3
D₆	AgBr	2.1000	420.9

Table 3. Frequencies and refractive indexes of the transmission peak of ZGP powder pellets

Data	Simulation			Experiment
Data	ω_TO /cm^-1	ω_LO /cm^-1	λ_cutoff /μm	ω_TO /cm^-1	ω_LO /cm^-1	λ_cutoff /μm
D₁-D₅	-	-	-
D₁-D₄,D₅	379.3	406.4	12.3	399	408	12^[18]
D₁-D₆	380.0	406.3	12.3

Table 4. Infrared dielectric properties of ZGP crystal

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