Main Sector of relevance\IRC classification 11. Sciences (Chemistry, Physics etc)

11.32 Light filters for IR range of spectrum

Developers’ contact information

SSPA “The Scientific and Practical Materials Research Center of the National Academy of Sciences of Belarus”
19/1/225, P. Brovka Str., 220072 Minsk

Summary

The light filters for IR range of spectrum on the basis of ZnAs₂ and Zn₃As₂ monocrystals.

Description

Laboratory samples of the light filters made of ZnAs₂ and Zn₃As₂ for IR range of spectrum with the slope of S~1.6%, S~2.1% respectively, and passing-through at the level of ~60-70% in the spectral region of 1.2-1.5 μm were developed.

Technology type

• Material

Technical advantages and economic benefits

The light filters on the basis of ZnAs₂ and Zn₃As₂ have sharp absorption edges that significantly exceed the characteristics of silicone- or germanium-based light filters.

Technology differentiation and uniqueness

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Context in which technology was identified

Report on the Belarusian Republican Foundation for Fundamental Research project NoФ97-299 “Development of physicochemical basics for the technology of growing and determining optical and electrical parameters of A^IIВ^V – group compound semiconductors – zinc and cadmium arsenides» (01.03.1998 г.–31.02.2000 г.).

Technological keywords

Zinc arsenide, zinc diarsenide, light filter.

Development Stage

• Prototype

Intellectual property rights

Range of applications

Optics.

Classifier Used at the EU Innovation Relay Centres

• Other Industrial Manufacturing Technologies
• Sciences (Chemistry, Physics etc)

Preferable Regions

• Europe

Practical experience

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Environmental impact

None.

Type of collaboration sought

• R&D contract

Terms and restrictions

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Available technical assistance

• Documentation
• Third party