Del Mar Photonics

THz parts

Silicon substrate lenses Request a quote for custom silicon optics!

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 patented aspheric focusing or collimating substrate lenses no further THz mirrors or lenses are needed for THz beam shaping.


Aspheric collimating silicon lens CL-12 - request a quote

diameter: 12 mm
thickness: 7.9 mm
refractive index: 3.4
material: undoped HRFZ-silicon
specific resistance: > 10 kΩ*cm
flat surface: polished
aspheric surface: rough (AR)
PCA chip thickness: 0.6 mm
delivery time: from stock

Terahertz beam
collimated with 12 mm diameter
collection angle α 57.3



Aspheric focusing silicon lens FL-12-50 - request a quote

diameter: 12 mm
thickness: 8.0 mm
focus length: 50 mm
refractive index: 3.4
material: undoped HRFZ-silicon
specific resistance: > 10 k Wcm
flat surface: polished
aspheric surface: rough (AR)
PCA chip thickness: 0.6 mm
delivery time: from stock
Price: EUR 350.-
 

Request a quote for custom silicon optics!

Terahertz systems, set ups and components
New band pass and long pass THz optical filters based on porous silicon and metal mesh technologies.
Band pass filters with center wavelengths from 30 THz into GHz range and transmissions up to 80% or better. Standard designs
with clear aperture diameters from 12.5 to 37.5 mm.
Long pass filters with standard rejection edge wavelengths from 60 THz into GHz range. Maximum transmission up to 80% or
better, standard designs at 19.0 and 25.4 mm diameters.
Excellent thermal (from cryogenic to 600 K) and mechanical properties
THz products:
Portable Terahertz Source
THz Spectrometer kit with Antenna
THz transmission setup
THz time domain spectrometer Pacifica fs1060pca
THz time domain spectrometer Pacifica fs780pca
THz detectors: Golay cell and LiTaO3 piroelectric detectors
PCA - Photoconductive Antenna as THz photomixer
Pacifica THz Time Domain Spectrometer - Trestles Pacifica
Holographic Fourier Transform Spectrometer for THz Region
Wedge TiSapphire Multipass Amplifier System - THz pulses generation
Terahertz Spectroscopic Radar Mobile System for Detection of Concealed Explosives
Band pass filters with center wavelengths from 30 THz into GHz range
Long pass filters with standard rejection edge wavelengths from 60 THz into GHz range
Generation of THz radiation using lithium niobate
Terahertz crystals (THz): ZnTe, GaAs, GaP, LiNbO3 - Wedge ZnTe
Silicon Viewports for THz radiation

iPCA - interdigital Photoconductive Antenna for terahertz waves
Large area broadband antenna with lens array and high emitter conversion efficiency
iPCA with LT-GaAs absorber, microlens array for laser excitation wavelengths
l £  850 nm, adjusted hyperhemispherical silicon lens with a high power conversion efficiency of 0.2 mW THz power / W optical power. The iPCA can be used also as large area THz detector. The two types iPCAp and iPCAs have the same active interdigital antenna area but different contact pad directions with respect to the electrical THz field.
Interdigital Photoconductive Antenna for terahertz waves generation using femtosecond Ti:Sapphire laser

THz books

 

We are looking forward to hear from you and help you with your optical and crystal components requirements. Need time to think about it? Drop us a line and we'll send you beautiful Del Mar Photonics mug (or two) so you can have a tea party with your colleagues and discuss your potential needs.

 

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Del Mar Photonics, Inc.
4119 Twilight Ridge
San Diego, CA 92130
tel: (858) 876-3133
fax: (858) 630-2376
Skype: delmarphotonics
sales@dmphotonics.com