THz Systems Archives - Rosh ElectrOptics ltd http://a90253-tmp.s746.upress.link/category/products/thz-systems/ Electro-optics and photonic solutions Mon, 22 Aug 2022 14:18:39 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.5 http://a90253-tmp.s746.upress.link/wp-content/uploads/2020/06/Rosh-Electroptics-LTD-1.svgTHz Systems Archives - Rosh ElectrOptics ltdhttp://a90253-tmp.s746.upress.link/category/products/thz-systems/ 32 32 Ultrafast Terahertz detectorshttp://a90253-tmp.s746.upress.link/ultrafast-terahertz-detectors/ Mon, 09 Nov 2020 18:45:09 +0000 http://a90253-tmp.s746.upress.link/?p=1712Our ultrafast high-sensitive sub-THz detectors are meant for exploring fast-changing and transient sub-THz signals and impulses. We can offer our FAST detectors, which are not so fast, but show much higher sensitivity (response time: 1 μs; sensitivity 10V/W). Description / Specifications Sub-THz Detectors Ultrafast FAST Response time: 150 ps 1 μs SpectralRange 50 GHz – […]

The post Ultrafast Terahertz detectors appeared first on Rosh ElectrOptics ltd.

]]>


Compact size: 20x30x7 mm

Our ultrafast high-sensitive sub-THz detectors are meant for exploring fast-changing and transient sub-THz signals and impulses.

We can offer our FAST detectors, which are not so fast, but show much higher sensitivity (response time: 1 μs; sensitivity 10V/W).

Description / SpecificationsSub-THz Detectors
UltrafastFAST
Response time:150 ps1 μs
SpectralRange50 GHz – 0.7 THz50 GHz – 0.7 THz
Responsivity (typical):0.5 V/W10 V/W
Noise Equivalent Power:2 nW/√Hz1 nW/√Hz
Dimensions:23 х 29 х 6.5 mm23 х 29 х 6.5 mm
Impedance:50 Ω10 kΩ
Output connector:SMASMA

The post Ultrafast Terahertz detectors appeared first on Rosh ElectrOptics ltd.

]]> Terahertz opticshttp://a90253-tmp.s746.upress.link/terahertz-optics/ Mon, 09 Nov 2020 15:20:24 +0000 http://a90253-tmp.s746.upress.link/?p=1709A ready-made solution for terahertz imaging: 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 post Terahertz optics appeared first on Rosh ElectrOptics ltd.

]]>

A ready-made solution for terahertz imaging:

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 lense
  • 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: 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

The post Terahertz optics appeared first on Rosh ElectrOptics ltd.

]]> THz time domain solutionshttp://a90253-tmp.s746.upress.link/thz-time-domain-solutions/ Mon, 09 Nov 2020 14:50:03 +0000 http://a90253-tmp.s746.upress.link/?p=1700TERA ASOPSHigh-Speed THz Time-Domain Spectrometer ASOPS scanning technique without mechanical delay unit Large scanning range Highest spectral resolution Turnkey system operation and user-friendly software Remote control and data transfer over network TERA Image -THz Imaging system NEW: Including ImageLab, one-of-a-kind image processing tool for data analysis and visualization Automated measurement Flexible setting of travel range, speed […]

The post THz time domain solutions appeared first on Rosh ElectrOptics ltd.

]]>

TERA ASOPS
High-Speed THz Time-Domain Spectrometer

  • ASOPS scanning technique without mechanical delay unit
  • Large scanning range
  • Highest spectral resolution
  • Turnkey system operation and user-friendly software
  • Remote control and data transfer over network

TERA Image -THz Imaging system

  • NEW: Including ImageLab, one-of-a-kind image processing tool for data analysis and visualization
  • Automated measurement
  • Flexible setting of travel range, speed and pixel increment

The post THz time domain solutions appeared first on Rosh ElectrOptics ltd.

]]> THz radiation lenseshttp://a90253-tmp.s746.upress.link/thz-radiation-lenses/ Mon, 09 Nov 2020 14:37:08 +0000 http://a90253-tmp.s746.upress.link/?p=1696High transparency in THz regime Pre-mounted Easy adjustment in THz-path  Optical transparency range from 780 nm-1550 nm Short delivery time

The post THz radiation lenses appeared first on Rosh ElectrOptics ltd.

]]>
  • High transparency in THz regime
  • Pre-mounted
  • Easy adjustment in THz-path 
  • Optical transparency range from 780 nm-1550 nm
  • Short delivery time

The post THz radiation lenses appeared first on Rosh ElectrOptics ltd.

]]> Terahertz imaging scannerhttp://a90253-tmp.s746.upress.link/terahertz-imaging-scanner/ Thu, 20 Aug 2020 08:19:50 +0000 http://a90253-tmp.s746.upress.link/?p=446The High-Speed Terahertz Imaging Scanner is our flagship product. It features both, an unprecedented imaging speed of 5000 frames per second and ease of integration into any industrial process. The Terahertz Imaging Scanner fits most conveyors with a belt speed up to 15 m/s. Its ultrafast linear sensor array is built to satisfy the needs […]

The post Terahertz imaging scanner appeared first on Rosh ElectrOptics ltd.

]]>

The High-Speed Terahertz Imaging Scanner is our flagship product. It features both, an unprecedented imaging speed of 5000 frames per second and ease of integration into any industrial process. The Terahertz Imaging Scanner fits most conveyors with a belt speed up to 15 m/s. Its ultrafast linear sensor array is built to satisfy the needs in Non-Destructive Testing (NDT) and Quality Control (QC) for many industrial applications.

The Terahertz Imaging Scanner system consists of two parts: a linear terahertz imaging camera and a Terahertz generator at 100 GHz. Both parts are optimized and synchronized to each other. THz radiation power is properly delivered from the generator onto the camera sensor. The camera pixel size determines an image resolution of 1.5 mm, which exceeds the requirements of most industrial applications.

THz scanner specifications

Number of pixels:256 (256 x 1)
Pixel size:1.5 x 3 mm2
Imaging area:384 x 3 mm2
Dimensions of device:450 x 160 x 44 mm3
Image acquisition rate:5000 fps (5 KHz)
Sync out:TTL (+5 V)
Min detectable power:100 nW (at 5000 fps)
45 nW (at 1000 fps)
14 nW (at 100 fps)
Interface:Mini-USB
Included software:TeraFast® Viewer

TeraSense offers two types of generators, both based on IMPATT technology. Our Type I generator has a horn antenna with a specially designed PTFE refractive optical system. The configuration of the PTFE lenses ensures proper focusing of the THz beam onto the linear window of the camera. The Type II generator is an upgraded version of the THz source. It utilizes our most recent breakthroughs in THz technology which enables the enhanced performance of the THz imaging scanner. The Type II module includes our novel reflective THz optics based on our specially configured high-gain horn antenna in combination with a metallic mirror. The Type II sources are made from exceptional IMPATT diodes that deliver significantly more power than the average diode. The Type II generator considerably improves the THz imaging capabilities of our linear scanner by increasing the amount of power reaching the sensor array.

Terahertz Source Type I for imaging scanner Terahertz Source Type II for imaging scanner

More in this category:

The post Terahertz imaging scanner appeared first on Rosh ElectrOptics ltd.

]]> Terahertz Antennas and Componentshttp://a90253-tmp.s746.upress.link/terahertz-antennas-and-components/ Thu, 20 Aug 2020 08:17:34 +0000 http://a90253-tmp.s746.upress.link/?p=443The Terahertz antennas and components complete the product portfolio for THz. We offer photoconductive antennas made for excitation wavelengths of 800 nm and 1500 nm. On the component side we offer optimized mechanical holders as well as THz lenses. Features Easy to Use Fiber-Coupled Modules Mounts Available for Chip-Mounted Antennas Broad Bandwidth Menlo Systems brings […]

The post Terahertz Antennas and Components appeared first on Rosh ElectrOptics ltd.

]]>

The Terahertz antennas and components complete the product portfolio for THz. We offer photoconductive antennas made for excitation wavelengths of 800 nm and 1500 nm. On the component side we offer optimized mechanical holders as well as THz lenses.

Features

  • Easy to Use Fiber-Coupled Modules
  • Mounts Available for Chip-Mounted Antennas
  • Broad Bandwidth
Menlo Systems brings the TERA8-1 to the market with our collaborator IPM, Fraunhofer Institut für Physikalische Messtechnik. The newest generation of the TERA10 and TERA15 series antennas are brought to the market with our collaborator, the Fraunhofer-Institut für Nachrichtentechnik Heinrich-Hertz-Institut. The structure of the THz antennas is optimized for broadest bandwidth and the best signal-to-noise ratio. For more technical details about each antenna, please see the Specs Tab, or contact Menlo systems using the information below. For complete terahertz solutions, including a laser source and data acquisition hardware and software, see the TERA-K8, TERA-K15, and TERA-OSCAT spectrometer systems.

Applications

  • THz Generation
  • THz Physics
  • Broadband THz Spectroscopy
  • THz Imaging

Terahertz Antennas for 800 nm

  • Optimized for Lasers Around 800 nm, Pulse Widths <100 fs, 100 MHz Repetition Rate
  • 1 Wrapped Dipole Structure on Each Chip
  • Low Temperature Grown GaAs Dipole Structures

The TERA8-1 antenna is a single dipole structure mounted on a PCB. The antenna can be used both as an emitter and as a detector. The TERA8-1 antennas are used in the TERA-K8 time domain spectrometer kit.

To obtain the best performance of the TERA8-1 antenna, Menlo Systems offers the T8-H2 mount, which includes a focusing lens for the optical beam and a pre-collimating Si lens for the THz radiation. The T8-H2 mount features an X-Y position adjustment of the Si lens relative to the TERA8-1 antenna and an X-Y differential screw adjustment for precise control of the alignment of the TERA8-1 to the focus of the optical 

Terahertz Antennas for 1030 nm

  • Optimized for Lasers Around 1030 nm, Pulse Widths <100 fs, 100 MHz Repetition Rate
  • Based on Novel Mesa-Structured InGaAs/InAlAs Photoconductive Layers

The TERA10-SL25-FC and TERA10-DP25-FC Antennas feature a polarization-maintaining, fiber-coupled solution for greatest ease of use and optimum performance. The geometries of the emitter and receiver antennas are optimized for best signal-to-noise and bandwidth. The emitter has a strip line geometry and the detector has a dipole geometry (see figure to the right). These “plug and play” antenna modules offer the best flexibility in experimental configuration and setup.

Terahertz Antennas for 1560 nm

  • Optimized for Lasers Around 1560 nm, Pulse Widths <100 fs, 100 MHz Repetition Rate
  • Patented LT InGaAs/InAlAs on InP Multi-Layer Structure
  • Available for Both Free-Space and Fiber-Coupled Inputs

The TERA15-SL25 and TERA15-DP25 antennas, like the TERA8-1 above, are substrates mounted on PCBs. The TERA-SL25 emitter is a stripline geometry, and the TERA15-DP25 is a dipole geometry. Menlo Systems also offers the T15-H2 mount for best performance and easy adjustment of the TERA15 antennas. The T15-H2 includes a focusing lens for the infrared beam and a pre-collimating Si lens for the THz radiation. The T15-H2 mount features an X-Y position adjustment of the Si lens relative to the TERA15 antenna and an X-Y differential screw adjustment for precise control of the alignment of the TERA15 antenna to the focus of the infrared beam.

The TERA15-TX-FC and TERA15-RX-FC antennas are polarization-maintaining, fiber-coupled modules optimized for better THz power production. These antennas are used in the fully fiber-coupled TERA-K15 and TERA-OSCAT terahertz spectrometers.

The post Terahertz Antennas and Components appeared first on Rosh ElectrOptics ltd.

]]> Terahertz Source/Generatorhttp://a90253-tmp.s746.upress.link/terahertz-source-generator/ Thu, 20 Aug 2020 08:14:38 +0000 http://a90253-tmp.s746.upress.link/?p=440TeraSense series of terahertz sources (IMPATT diodes) are silicon double drift diodes with a 0.6 um transit region, mounted on copper heat sink. The layers in double-drift diodes are: a heavily doped (p+)-region, a moderately doped pregion, a moderately doped n-region, and a heavily doped (n+)-region. The (p+) — and (n+) — regions allow ohmic […]

The post Terahertz Source/Generator appeared first on Rosh ElectrOptics ltd.

]]>

TeraSense series of terahertz sources (IMPATT diodes) are silicon double drift diodes with a 0.6 um transit region, mounted on copper heat sink. The layers in double-drift diodes are: a heavily doped (p+)-region, a moderately doped pregion, a moderately doped n-region, and a heavily doped (n+)-region. The (p+) — and (n+) — regions allow ohmic electrical contacts to be made to the external circuit. The device relies on negative resistance to generate and sustain an oscillation.

TeraSense is now offering its upgraded version of terahertz generators. The upgraded thz generator is outfitted with a protective isolator, which significantly improves output power stability. From now on you can order the THz source with either rigidly fixed horn antenna or WR- flange of your choice. Typical output rfpower of the generator with optimized frequency at 100 GHz can reach up to 100 mW. This allows them to be used together with multipliers to reach frequencies in the far terahertz spectral range.

In addition, TeraSense sources feature ergonomic design and ease to use. The company can optionally supply THz generator with attenuator and switch

THz source
100 GHz

~ 80 / 400 mW output rfpowerConical horn antenna /
Flange type output

Protective Isolator
TTL Modulation

THz source

140 GHz

~ 30 / 100 mW output rfpowerConical horn antenna /
Flange type output

Protective Isolator
TTL Modulation

THz source

180 GHz

~ 10 mW output rfpowerConical horn antenna /
Flange type output

TTL Modulation

THz source

300 GHz

~ 10 mW output rfpowerConical horn antenna /
Flange type output

TTL Modulation

tera

Download attachments:

The post Terahertz Source/Generator appeared first on Rosh ElectrOptics ltd.

]]> TERA K15 All fiber-coupled Terahertz Spectrometerhttp://a90253-tmp.s746.upress.link/tera-k15-all-fiber-coupled-terahertz-spectrometer/ Thu, 20 Aug 2020 08:05:53 +0000 http://a90253-tmp.s746.upress.link/?p=437Specifications Advanced Features and Benefits NEW: >5 THz bandwidth, >90 dB dynamic range Optional: Synchronizable THz-TDS system Multicolor laser outputs available Fast scanning delay line with >850 ps total range Fast data acquisition platform without lock-in amplifier Remote control and data transfer over network TERA K15 Antenna model TERA15-FC* Spectral range >5 THz (typically 5.5 […]

The post TERA K15 All fiber-coupled Terahertz Spectrometer appeared first on Rosh ElectrOptics ltd.

]]>

Specifications

Advanced Features and Benefits

  • NEW: >5 THz bandwidth, >90 dB dynamic range
  • Optional: Synchronizable THz-TDS system
  • Multicolor laser outputs available
  • Fast scanning delay line with >850 ps total range
  • Fast data acquisition platform without lock-in amplifier
  • Remote control and data transfer over network
TERA K15
Antenna modelTERA15-FC*
Spectral range>5 THz (typically 5.5 THz), for higher bandwidth ask for metal mirror option
Dynamic range>90 dB (typically 95 dB)
Total scan range>850 ps, flexible setting of scanning range and speed
THz frequency resolution<1.2 GHz
Laser specifications 
Wavelength1560 nm, alternatively 780 nm or multicolor ports
Total average output power**>500 mW at 1560 nm, > 250 mW at 780 nm
Repetition rate100 MHz, synchronizable to external source on request
Output ports for THz generation2 x fiber coupled FC/APC ports, PM fiber
Pulse duration<90 fs
Dimensions / weight 
Optical unit900 x 600 x 200 mm3, 34 kg
THz control electronics448 x 132 x 550 mm3, 8 kg
Laser control unit448 x 132 x 437 mm3, 12 kg

* See product data sheet for detailed specifications
** User can switch between 780 nm and 1560 nm port (arbitrary splitting ratios possible)

Description

The TERA K15 fiber-coupled Terahertz spectrometer provides a complete solution for fast broadband time-domain THz spectroscopy, offering maximum flexibility for scientific THz applications.

The system includes our latest figure 9® femtosecond laser source at 1.5 μm emission wavelength, a fiber coupled optical light path with delay line, a THz wave path with THz Emitter, THz detector and TPX THz optics, control electronics and a PC with data aquisition and evaluation software. The delay line offers flexibility by covering a total range of >850 ps, and performs fast scanning up to 20 Hz. The dual detector option offers simultaneous measurements in transmission and reflection geometry. For THz imaging applications our extension unit TERA Image can be integrated into the setup, including image acquisition and reconstruction software.

Optionally, the system’s laser source can be synchronized to an external source, and can be extended by additional laser output ports at 780 nm and 1560 nm. To perform THz-TDS with optical sample excitation at those wavelengths, the TERA K15 setup can be upgraded with our THz-Pump-Probe add-on.

The post TERA K15 All fiber-coupled Terahertz Spectrometer appeared first on Rosh ElectrOptics ltd.

]]> TeraSmart Compact Industry-Proven Terahertz Spectrometerhttp://a90253-tmp.s746.upress.link/terasmart-compact-industry-proven-terahertz-spectrometer/ Thu, 20 Aug 2020 07:49:04 +0000 http://a90253-tmp.s746.upress.link/?p=429Specifications Advanced Features and Benefits NEW: >5 THz bandwidth, >90 dB dynamic range Industry-proven ultra stable optical delay unit Measurement speed up to 50 Hz Large >850 ps scanning range Remote control and data transfer over network All-PM fiber laser technology with instantaneous mode locking, for highest stability and reliability TeraSmart THz specifications   Spectral […]

The post TeraSmart Compact Industry-Proven Terahertz Spectrometer appeared first on Rosh ElectrOptics ltd.

]]>

Specifications

Advanced Features and Benefits

  • NEW: >5 THz bandwidth, >90 dB dynamic range
  • Industry-proven ultra stable optical delay unit
  • Measurement speed up to 50 Hz
  • Large >850 ps scanning range
  • Remote control and data transfer over network
  • All-PM fiber laser technology with instantaneous mode locking, for highest stability and reliability
TeraSmart
THz specifications 
Spectral range>5 THz (typically 5.5 THz), for higher bandwidth ask for metal mirror option
Dynamic range>90 dB (typically 95 dB)
Total scan range>850 ps, flexible setting of scanning range and speed
THz frequency resolution<1.2 GHz
Antenna modelTERA15-FC*
Laser specifications
Auxiliary optical output portTwo fiber coupled ports, 1560 nm, FC/APC, 70 mW, PM fiber
Laser system repetition rate100 MHz
Dimensions / weight 
Enclosure19″ x 3U (448 x 132 x 495 mm³) / 30 kg
  

*see product data sheet for detailed specifications

Description

The new compact terahertz spectrometer TeraSmart integrates the latest achievements in broadband Terahertz Time Domain Spectroscopy (THz-TDS) into an easy-to use turnkey solution. It combines Menlo Systems’ latest fiber-based femtosecond laser sources featuring our figure 9® mode locking technology with our industry-proven THz components. The modular design based on our OEM laser plattform ELMO ensures a flexible configuration of the system to meet the needs for integration in any industrial or scientific environment. Custom fiber lengths to THz emitter and THz detector are available upon request. Moreover, multibranch configurations are possible, enabling simultaneaous measurements of several emitter/detector pairs using only one fs fiber laser oscillator.

Rounding off the product, a smart TCP socket interface allows platform-independent remote control over ethernet connections for seemles integration in existing experiments or in industrial nondestructive testing (NDT) environments. In short: A turnkey, OEM integrable THz spectrometer engineered for 24/7 operation.

The post TeraSmart Compact Industry-Proven Terahertz Spectrometer appeared first on Rosh ElectrOptics ltd.

]]> ERA OSCAT High-speed Terahertz Spectrometerhttp://a90253-tmp.s746.upress.link/era-oscat-high-speed-terahertz-spectrometer/ Thu, 20 Aug 2020 06:45:46 +0000 http://a90253-tmp.s746.upress.link/?p=426Specifications Advanced Features and Benefits NEW: Remote control and data transfer over network Fast scanning without optomechanical delay unit All-PM fiber laser technology with instantaneous mode locking, for highest stability and reliability TERA OSCAT Antenna model TERA15-FC* Spectral range >3 THz in step mode, >1 THz in rapid mode Dynamic range >60 dB in step […]

The post ERA OSCAT High-speed Terahertz Spectrometer appeared first on Rosh ElectrOptics ltd.

]]>

Specifications

Advanced Features and Benefits

    • NEW: Remote control and data transfer over network
    • Fast scanning without optomechanical delay unit
    • All-PM fiber laser technology with instantaneous mode locking, for highest stability and reliability
TERA OSCAT
Antenna modelTERA15-FC*
Spectral range>3 THz in step mode, >1 THz in rapid mode
Dynamic range>60 dB in step mode, >35 dB in rapid mode
Total scan rangeup to 4 ns (pulse-to-pulse, virtually unlimited)
Rapid scan rangeup to 40 ps
Rapid scan rate>200 waveforms / s
THz frequency resolution<3 GHz
Scan moderapid / step scan
Laser specifications
Wavelength1560 nm
Total average output power>60 mW
Repetition rate250 MHz
Output port configuration2 x fiber coupled FC/APC ports, PM fiber
Pulse duration<90 fs directly from laser, <120 fs after OSCAT delay line
Dimensions / weight
Optical unit450 x 560 x 200 mm³ / 34 kg
THz control electronics448 x 132 x 550 mm3 / 10 kg

*depending on measurement settings

Description

Our new all-fiber THz spectrometer for fast data aquisition is based on the novel OSCAT (Optical Sampling by CAvity Tuning) technique. It enables THz time-domain spectroscopy without any moving parts. Combined with our TERA Image extension, the system provides a solution for fast THz imaging applications. Similar to the ASOPS technique, the OSCAT offers great flexibility in system configuration and capability of high-speed measurements. TERA OSCAT is a robust and portable solution for both laboratory use and OEM integration, suitable even for harsh industrial environment.

System layout:

Principle of operation:

In the OSCAT technique there is no need for an external moveable delay line. Contrary to the conventional THz-TDS systems, the lengths of the emitter and detector arms are not balanced. The temporal shift Dt between the pulses i (emitter arm) and i+a (detector arm) is determined by the repetition rate frep of the fs laser.

The post ERA OSCAT High-speed Terahertz Spectrometer appeared first on Rosh ElectrOptics ltd.

]]>