THz Band Pass Filters

Optics for THz

THz Low Pass Filters

 Features:

• Performance in wavelength range from IR to MM;
• High transmittance in pass band;
• Low transmittance  (<0.1%) in stop band;
• Mounted in holders.

THz Band Pass Filters

Features:

• Any pass band in the range from 0.1 to 15 THz (from 3000 to 20 μm);
• High transmittance  (60-90%) in pass band;
• Low transmittance  (<4%) in stop bands;
• Available to be used in cryostats and electro-optic assemblies;
• Damage threshold (in the range from 0.1 to 15 THz)  - 65-100 W/cm²;
• Mounted in holders.

Polyethylene polarizers

Features

• Used in extremely wide wavelength range from MIR (7 μm) to THz ( 3 mm and even more)
• Substrate is high density polyethylene (HDPE)
• High FIR transmission
• High degree of polarization
• Polarizers are supplied in holders (protective ring with marked grid direction)

THz beam splitters

1. 1.     Single-pass THz Beam Splitter 
   The specification for the single-pass beam splitter is the same as for a HRFZ-Si window.

2. Multi-pass THz Beam Splitter
The multi-pass beam splitter (for interferometers) as opposed to a single-pass beam splitter should be produced with a high accuracy.