Product Highlights
- Ultra-Wideband: 50 GHz – 2.5 THz in a Single Device
- Tuned for High-Speed Synchrotron Pulse Monitoring
- Faster than Golay-Cell Detectors
- Higher Sensitivity than Pyroelectric Detectors
- Operates at Room Temperature
- Compact, Low Power-Consumption, DC-Coupled Simplicity
Application Areas
- THz Imaging Systems
- High-Speed THz Screening
- Synchrotron Pulse Monitoring
- Time-Resolved THz Spectroscopy
- Scientific and Industrial Pulse Diagnostics
3DL 12C LS2500 A2
The 3DL 12C LS2500 A2 is engineered for fast, direct THz signal detection. It integrates a 4 GHz amplifier and extends bandwidth capabilities up to 5 GHz. While it offers slightly reduced gain compared to narrower-band alternatives, the A2 version is specifically optimized for short-pulse signal monitoring.
ACST’s THz detector has been refined in collaboration with leading synchrotron research institutions across Europe, ensuring reliable performance in demanding high-frequency environments.
This model shares the same compact mechanical footprint as the A1 series, with plug-and-play readiness for DC-coupled signal detection in time-resolved spectroscopy, beamline diagnostics, and pulse characterization setups.
| Technical Specifications | Optical Detectors |
|---|---|
| Lens Type | Silicon; spherical; collimating |
| Lens Diameter [mm] | 12 |
| Antenna Type | Log-spiral |
| Antenna Bandwidth [GHz] | 50 – 2500 |
| Video Amplifier Bandwidth [MHz] | 50 – 4000 |
| Responsivity [V/W] | 230 @70 GHz; 17 @1 THz |
| Output Voltage [V] (max.) | ± 0.25 |
| NEP [pW/Hz^1/2] | 38.8 |
| Power Supply Output [V] | ± 12 |
| Current Consumption [mA] (max.) | 90 |
| Responsivity Measured at [ºC] | 24 |
Click here to view the inquiry form and request a quote.
Overview
Figures 1 through 3 show the A2 detector’s performance at Synchrotron BESSY (Berlin), where the system successfully captured discrete pulses from macro bunches despite early ringing effects. These figures reflect real-world implementation for repetitive pulsed THz sources.
Subsequent improvements are demonstrated in Figures 4 and 5, collected at Synchrotron SOLEIL (France). With updated filtering and optimized electronics, the newer A2 detectors showed minimized ringing and greater fidelity in pulse resolution — a key advancement for synchrotron-based THz monitoring.
The 3DL 12C LS2500 A2 maintains high responsivity across the 50 GHz to 2.5 THz range, making it an excellent tool for facilities demanding nanosecond-scale temporal resolution and minimal noise floor.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
