A wide range of THz, MMW & sub-THz and IR solutions are available from our partners, Lytid SAS of Paris, France. Lytid’s products are high performance, user friendly, and designed to meet a range applications.
THz Solutions – From 1THz to 10 THz /
From 300um to 30um
High Power THz Sources – the new generation TeraCascade 2000 Series
Lytid’s PRISM award-winning TeraCascade 1000 series goes into its second generation! Based on state-of-the-art quantum cascade laser technology, the TeraCascade 2000 series is the perfect tool to explore the supra-THz frequency range.
The TeraCascade 2000 has kept all the advantages of former generation: multiple frequency options, high output power, plug-and-play operation. In addition, a semi-permanent vacuum is achieved with the new design, giving rise to a low-maintenance device. In combination with automatically controlled cryogenic-free cooling, TeraCascade 2000 is a truly plug and play and easy to use system.
With up to 6 QCL chips at discrete frequencies between 2 to 5 THz in one system, TeraCascade 2000 series guarantees average output power of more than 1 milliwatts in CW or QCW for each band. The integrated custom QCL driver provides instantaneous electronic switching between the frequency bands and it is fully programmable with dedicated software to control all input parameter via a remote USB connection.
An automated beam collimator module for multi-band operation is available separately. In particular, TeraCascade 2000 can be upgraded to TeraEyes-HV, a high-resolution, real-time imaging solution., allowing to explore more possibility for THz imaging applications.
The TeraPyro sensor is a compact and highly sensitive device, based on the combination of a high-quality absorbing black coating, paired with a LiTaO3 pyroelectric crystal. The broad absorption range of the coating allows the use of this sensor over a large spectral range (from 0.1 to 30 THz). The high sensitivity and low NEP offer no compromise on performance.
TeraEyes-HV – High-versatility real-time THz imaging system
TeraEyes-HV is a high-versatility, real-time THz imaging system, suitable for full-field high resolution applications. Based on Lytid’s powerful CW THz source, TeraCascade 2000, a multifunctional imaging unit and a focal plane array detection unit, TeraEyes-HV is the ultimate, fully-integrated THz imaging solution.
Millimeter (MMW) and Sub-Terahertz (THz) Solutions – From 1GHz to 1 THz / From 300mm to 300um
Sub-Terahertz Sources – TeraSchottky
The TeraSchottky is a low frequency THz source based on state-of-the-art Schottky diodes multipliers chains. The base unit is available at 75GHz and frequency extension at 150, 300 and 600GHz are available for upgrade. With up to hundreds of mW of average output power, TeraSchottky provides the best compromise between tunability and output power on the market for multiplier-based sources.
Sub-THz Components – high power, high bandwidth multipliers
Lytid’s range of high power frequency multipliers provide state-of-the-art performances across the sub-terahertz band.
These frequency doublers are commonly used to extend the frequency range of microwave and mmW sources towards higher frequencies. The doublers are based on planar GaAs Schottky diode technology derived from European Space Programs.
The TeraPyro sensor is a compact and highly sensitive device, based on the combination of a high-quality absorbing black coating, paired with a LiTaO3 pyroelectric crystal. The broad absorption range of the coating allows the use of this sensor over a large spectral range (from 0.1 to 30 THz). The high sensitivity and low NEP offer no compromise on performance.
Optics – From 1 GHz to more than 10 THz / From 300mm to less than 30um
TeraLens – Terahertz Camera Lens
The TeraLens is an optimized aspherical solution for real time THz imaging using dedicated camera sensors. Its low f/0.83 ensures an optimum power collection while the low distortion level and low vignetting provide high quality imaging. The constant optical index of HRFZ-Si makes it suitable for a broad spectral range (from 0.1 up to 5THz) and ensures diffraction limited imaging up to 4 THz thanks to the aspherical design. Customized AR coatings, tailored to your specific application, will guarantee excellent power transmission.
The auto-alignment module is a complementary tool for stabilizing and optimizing the emission from Lytid’s multi-QCL (Quantum Cascade Laser) source, TeraCascade 1000. This system provides collimation and stabilization of THz emission from different QCLs. No realignment is required when sweeping frequencies: thanks to the auto-alignment module, alignment is maintained for different QLCs emission.
Lytid’s high-quality PTFE lenses provide excellent performances across the sub-THz and THz band. The low absorption coefficient of PTFE optics (<0.8 cm-1 up to 1 THz) in combination with low insertion loss (refractive index of ~1.4) make it a prime solution for a variety of THz and sub-mm systems within a wide frequency range, from 75 GHz up to 2 THz.
High-quality PTFE lenses with excellent performances across the sub-THz and THz band
> Highly-suitable material for THz applications
> Wide range of focal lengths and dimensions
> Minimal insertion losses
> Cost-effective optic
Lytid’s high-quality PTFE lens range incorporates standard geometries with diameters between 1″ to 6″, focal lengths from 500 mm down to 40 mm through plano-convex, plano-aspheric or double-aspheric profiles.
The terahertz (THz) is the last part of the electromagnetic spectrum to be exploited. Located between the microwaves and infrared radiation it has been long called the “terahertz gap” due to the lack of availability of THz sources and detectors. Today, this gap is closing as next generation sources and detectors become steadily available. Our TeraCascade range of THz sources is designed in the spirit of making these technologies available to demanding users that wish to explore, develop and publish in this dynamic field of physics that is terahertz.
Features of terahertz radiation
Due to its low photon energy, THz radiation is non-ionising i.e. not dangerous for the health as of today’s understanding. It can penetrate non-polar, dry and non-metallic materials like plastics, ceramics, woods, fabrics or composites. This feature is shared with the microwaves on the lower end of the spectrum. THz waves also share the spectroscopic information embedded within the infrared radiation on its high end of the spectrum. This combination of properties make THz radiation so unique and so promising for many applications.
A whole world of applications
Terahertz technologies have become a major field of applied research, driven by the tremendous potential of applications such as biomedical imaging, industrial nondestructive testing (NDT), security screening and sensing and in many fields of fundamental sciences. Imaging using THz radiation has garnered increasing attention, as it promises penetrating, contactless and submillimeter diffraction-limited imaging. Furthermore, spectroscopic information and 3D imaging are possible using multi-color computer assisted tomography techniques. The main challenge in achieving the full potential of THz applications: the limitations in the performance of current THz sources and detectors.
Lytid SAS
Infrared Solutions – More than 10 THz / Less than 30um
Scientific Cryo-cooled SWIR Camera – SIRIS
The SIRIS (Short-wave InfraRed Imaging System) is the most versatile SWIR camera on the market, providing high speed with ultra low noise performances. SIRIS provides two read-out modes, full linear and linear/logarithmic, that combines with non-destructive read-out (NDRO) allows for class-leading dynamic range. Three adjustable gain levels ensure flexibility to suit broad variety of illumination conditions. Long expo-sure time up to one hour is achievable, and selectable region-of-interest on the detector allows exceptional frame rate values.
