SynViewHead – All-Electronic Terahertz / Millimeter-Wave Transmitter and Receiver Module
- SynViewHead: Millimeter-wave emitter and receiver head with focussing optics.
- All-electronic continuous-wave (cw) transmitter and receiver head
- Frequency 100 GHz or 300 GHz
- Schottky diode with frequency multiplier chain
- Depth profile via frequency modulation (FMCW ranging)
- Depth resolution 20 µm within a 1 mm window
- Excellent dynamic range > 50 dB
- Core component of 3D imaging system SynViewScan
The SynViewHead is an all-electronic transmitter and receiver module, based on high-power emitters at 100 GHz or 300 GHz. Employing a frequency modulation technique similar to FMCW radar, a depth profile of a sample is generated. The dynamic range is > 50 dB and the depth resolution is better than 20 µm for any single interface within a +/- 1 mm window. The module is the key component of the 3D terahertz imaging system SynViewScan.
Technical Information
Technical Information
| Operation mode | Continuous-wave with frequency modulation (FMCW) |
| Source | Schottky diode with frequency multiplier chain |
| Operation frequency | 60 – 110 GHz (SynViewScan 100) 230 – 320 GHz (SynViewScan 300) |
| Measurement time per pixel | 240 µs |
| Dynamic range | > 50 dB @ P > 100 µW |
| Depth and thickness resolution | 10 - 20 µm |
| Layer and interface separation | 1 – 2 mm |
| Contents of delivery | Measurement head, data acquisition board, control PC with operating software. |
Principle of FMCW ranging. The frequency offset ωoffset between the transmitted (TX) and received (RX) signal is given by Δω x Δt / ts, with Δω = frequency scan width, Δt = round trip time delay, and ts = sweep time per cycle.
Options & Related Products
Options & Related Products
- SynViewHead 100: 100 GHz measurement head
- SynViewHead 300: 300 GHz measurement head
- SynViewScan: Complete 3D terahertz / millimeter-wave imaging system
- cw Packages: Tunable diode lasers for frequency-domain terahertz applications
- cw Spectroscopy Kit: Leading-edge photomixers for terahertz spectroscopy
- fs Packages: Ultrafast fiber lasers for time-domain terahertz applications
Technical Drawings
Applications
Applications
- Package inspection – pharmaceutical or food industry
- Industrial quality control – identification of hidden defects (holes, cracks, glue…)
- Surface characterization of compounds and synthetics
- Exploration of security applications
If you have a different application in mind, feel free to contact us to discuss the feasibility.
Picture 1: Photograph (top) and terahertz image (bottom) of a T-shaped thin metal foil on a metal plate.
Picture 2: Photograph and terahertz image of heat insulation foam on pieces of carbon fiber plastic.
Picture 3: Photograph and overlaid terahertz image of a mannequin with a gun hidden beneath clothing.
Photograph and terahertz image of a box with various objects. The spools of the video tape are seen through the plastic cover, as is the DVD.
