Terahertz optics
As part of a ready-made solution for terahertz imaging, Terasense offers TPX and PTFE lenses and optical systems operating in the THz range. Plastic plano-raised lenses are made of Polytetrafluoroethylene (Virgin White PTFE, Teflon®), which has a low dielectric constant of approximately 1.96 @ 520 GHz with an index of refraction of 1.4. The THz range can be communicated as the recurrence scope of 300 GHz to 10 THz or the wavelength scope of 30 μm to 1 mm.
Material: PTFE
- Type: aspherical plano-convex condenser lens
- Available diameter: 50 – 150 mm
- Focal length: 50 – 300 mm
- Diameter tolerance: +/- 1 mm
- Clear aperture: >=80%
- EFL tolerance: +/-5%
- Surface quality, scr/dig 100/20
- Surface accuracy, +/-0.1 mm
Material: PTFE
- Type: Two-lens optical system
- Diameter: 120 mm
- Distance between lenses: 85 mm
- Effective focal length: 165 mm
- Diameter tolerance: +/- 1 mm
- Clear aperture: >=80%
- EFL tolerance: +/-5%
- Surface quality, scr/dig 100/20
- Surface accuracy, +/-0.1 mm
Material: TPX
- Type: plano-convex, bi-convex
- Available diameter: up to 100 mm
- Diameter tolerance: +/- 0.25 mm
- Clear aperture: >=90%
- EFL tolerance: +/- 1%
- Surface quality (two-sided polishing), scr/dig 80/50
- Surface accuracy: +/- 0.01 mm
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Terahertz optics