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THz Spectral Splitters

THz Spectral Splitters

THz Spectral Splitters

Tydex offers spectral splitters for applications where NIR and MIR radiation has to be reflected without transmission degradation in THz range.

太赫兹分束镜 太赫兹分束镜

NIR-THz spectral splitter is used for separation of pump radiation (centered in the wavelength range 790-800 nm) from THz radiation in Ti:Sapphire laser and MIR-THz  spectral splitter – for separation of pump radiation (9.6 μm and 10.6 μm) from THz radiation in THz laser optically pumped by CO2 -laser.

 太赫兹分束镜

太赫兹分束镜Common specification:

　 Splitter Type
NIR-THz spectral splitter MIR-THz spectral splitter
Material of substarate - HRZF-Si
- THz-grade crystal quartz
Dimensions tolerance, mm +/-0.25
Clear aperture, % 90
Surface quality, scr/dig 60/40
Surface accuracy, mm +/-0.01 deviation from ideal plane
Coating High-reflection dielectric coating (R>90%) @ 730-860 nm High-reflection dielectric coating (R>90%) @ 9-11µm  
Angle of incidence, arc. grad.  45

Typical reflection and transmission curves are shown below:

Fig.1 Reflection of NIR-THz spectral splitter (two types of substrate).

反射和透射近红外太赫兹光谱分束镜

Fig.2 Transmission  of NIR-THz spectral splitter (two types of substrate).

图1、2反射和透射近红外太赫兹光谱分束镜

Fig.3 Reflection of MIR-THz spectral splitter (two types of substrate).

图3、4的反射和传输红外THz光谱分束镜

Fig.4 Transmission of MIR-THz spectral splitter (two types of substrate).

图3、4的反射和传输红外THz光谱分束镜

The following NIR-THz and MIR-THz Spectral Splitters are available from stock:

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