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THz parts
Terahertz lenses  
   
 
> Elliptic focusing silicon substrate lens
  • On the emitter side the substrate lens supports the THz radiation to escape from the antenna GaAs substrate and shapes the THz beam.
  • On the detector side the substrate lens collects the incoming THz radiation and focus it on the receiving antenna.
  • Using our patented elliptic focusing substrate lens no further THz mirrors or lenses are needed for THz beam shaping.
 
  FSL-D20-f50   Focusing elliptic silicon lens with 20 mm diameter and 50 mm focal length data sheet  
 
  • diameter: 20 mm
  • thickness: 14 mm
  • focal length: 50 mm
  • refractive index: 3.41
  • material: undoped HRFZ-silicon
  • specific resistance: > 10 kΩcm
  • flat surface: polished
  • elliptic surface: polished
  • PCA chip thickness: 0.6 mm
  • delivery time: from stock
  • Price: EUR 390.-
elliptic focusing lens elliptic focusing silicon lens  
 
 
> Elliptic collimating silicon substrate lens
  • On the emitter side the substrate lens supports the THz radiation to escape from the antenna GaAs substrate and collimats the THz beam.
  • On the detector side the substrate lens collects the incoming collimated THz radiation and focus it on the receiving antenna.
  • Using our patented elliptic collimating substrate lens no further THz mirrors or lenses are needed for THz beam shaping.
 
  CSL-20   Collimating silicon lens with 20 mm diameter data sheet  
 
 
  • diameter: 20 mm
  • thickness: 13.8 mm
  • refractive index: 3.41
  • material: undoped HRFZ-silicon
  • specific resistance: > 10 kΩcm
  • flat surface: polished
  • elliptic surface: polished
  • PCA chip thickness: 0.6 mm
  • delivery time: from stock
  • Price: EUR 390.-
elliptic collimating lens elliptic collimating lens  
 
 
> Hyperhemispherical silicon substrate lens
  • The hyperhemispherical silicon substrate lens ensures a large solid angle Ω= 1.25 sr for the THz radiation in combination with a GaAs PCA chip.
  • Because this lens delivers a divergent THz beam it must be combined with a collimating lens.
 
  HSL-12-7.1   Hyperhemispherical silicon lens with 12 mm diameter and 7.1 mm height data sheet  
 
 
  • diameter: 12 mm
  • thickness: 7.1 mm
  • refractive index: 3.41
  • material: undoped HRFZ-silicon
  • specific resistance: > 10 kΩcm
  • surface: polished
  • PCA chip thickness: 0.6 mm
  • delivery time: from stock
  • Price: EUR 150.-
hyperhemispherical lens hyperhemispherical silicon lens  
 
 
> TPX lenses in combination with hyperhemispherical Si substrate lens
  • Using highly transmissive TPX (Polymethylpentene) lenses with short focus length the THz beam can be shaped.
  • One TPX lens can collimate the divergent THz beam coming from a hyperhemispherical substrate lens.
  • With a second TPX lens a sharp THz focus can be realized.
  • These TPX lenses can be mounted easily onto a PCA with hyperhemispherical silicon lens
 
 
  CTL-D25mm   Mounted collimating aspheric TPX lens with diameter 25.4 mm data sheet  
 
 
  • lens diameter: 25.4 mm
  • maximum lens thickness: 8.0 mm
  • focus length: 32.5 mm
  • free aperture: 22.4 mm
  • refractive index: 1.45 at 1 THz
  • absorption coeff: 0.3 cm-1
  • material: TPX (Polymethylpentene)
  • shape: plano-convex (aspheric)
  • PCA compatible housing
  • delivery time: from stock
  • Price: EUR 150.-
collimating TPX lens picture collimating TPX lens  
 
  CTLF-D25mm   Mounted collimating aspheric TPX lens for fiber coupled PCA with diameter 25.4 mm data sheet  
 
 
  • lens diameter: 25.4 mm
  • maximum lens thickness: 8.0 mm
  • focal length: 32.5 mm
  • free aperture: 22.4 mm
  • refractive index: 1.45 at 1 THz
  • absorption coeff: 0.3 cm-1
  • material: TPX (Polymethylpentene)
  • shape: plano-convex (aspheric)
  • PCA compatible housing
  • delivery time: from stock
  • Price: EUR 150.-
collimating TPX lens picture collimating TPX lens  
 
  FTL-f32.5mm    Focusing plano-convex TPX lens data sheet  
 
  • lens diameter: 25.4 mm
  • maximum lens thickness: 8.0 mm
  • focal length: 32.5 mm
  • free aperture: 22.4 mm
  • refractive index: 1.45 at 1 THz
  • absorption coeff: 0.3 cm-1
  • material: TPX (Polymethylpentene)
  • shape: plano-convex
  • housing compatible with collimating lens
  • delivery time: from stock
  • Price: EUR 150.-
focusing TPX lens picture focusing TPX lens  
 
  List of available focusing plano-convex TPX lenses from stock. Other TPX lenses on request.    
 
 
Part No. Lens diameter Focal length Free aperture diameter NA Central thickness Edge thickness Data sheet (pdf) Price (EUR) unmounted Price (EUR) mounted
TPX-D25.4-f10 25.4 mm 10.0 mm 20.0 mm 0.64 11.2 mm 3.3 mm PDF Data 130.- 150.-
TPX-D25.4-f24 25.4 mm 24.0 mm 20.0 mm 0.35 8.0 mm 4.0 mm PDF Data 130.- 150.-
TPX-D25.4-f25 25.4 mm 25.0 mm 22.4 mm 0.38 8.0 mm 3.1 mm PDF Data 130.- 150.-
TPX-D25.4-f32.5 25.4 mm 32.5 mm 22.0 mm 0.30 8.0 mm 4.2 mm PDF Data 130.- 150.-
TPX-D25.4-f50 25.4 mm 50.0 mm 22.4 mm 0.21 7.0 mm 4.4 mm PDF Data 130.- 150.-
TPX-D25.4-f67 25.4 mm 67.0 mm 22.4 mm 0.16 6.94 mm 5.0 mm PDF Data 130.- 150.-
TPX-D25.4-f150 25.4 mm 150 mm 22.4 mm 0.072 6.0 mm 5.1 mm PDF Data 130.- 150.-
TPX-D50.8-f65 50.8 mm 65.0 mm 47.8 mm 0.33 13 mm 4.1 mm PDF Data 220.- 250.-
TPX-D50.8-f200 50.8 mm 200 mm 47.8 mm 0.12 8.3 mm 5.0 mm PDF Data 220.- 250.-
 
 
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