광학

비소화 갈륨(GaAs)

비소화 갈륨(GaAs)

Use GaAs for transmissive and reflective optics in applications where mechanical hardness, mechanical strength, and abrasion resistance are important.

Coherent produces GaAs with the characteristics required for optical applications by applying laser vacuum calorimetry and other techniques to screen out material with voids, inclusions, or other defects that cause inferior optical performance.

Gallium Arsenide (GaAs) Characteristics

Coherent supplies GaAs substrates of up to 100 mm diameter, and carefully monitors 10.6 µm absorptivity to ensure that thermal runaway and fracture do not occur.

GaAs Material Properties

Physical Properties

Young’s Modulus

83 GPa (12.04 x 106 psi)

Rupture Modulus

138 MPa (20,000 psi)

Knoop Hardness

750 kkg/mm²

Density

5.37 g/cm³

Poisson’s Ratio

0.31

Thermal Properties

Thermal Conductivity @ 20° C

0.167 W/cm/°C

Specific Heat

0.469 J/g/°C

Linear Expansion Coefficient @ 20° C

6.8 × 10⁻⁶/°C

Optical Properties

Bulk Absorption @ 10.6 μm

<0.01 cm-1

Temperature Change of Refractive Index @ 10.6µm

149 x 10-6/°C

관련 제품

광학 제조 역량

Coherent 소재 성장, 가공, 코팅, 조립에 이르는 수직 통합 역량과 철저한 품질 보증(QA) 프로세스에 대해 알아보십시오. 이러한 역량이 어떻게 당사 광학 부품의 성능과 신뢰성을 보장하고, 공급망의 위험과 불확실성을 최소화하는지 확인해 보십시오.

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