THz power meter
Overview
Sunpump offers the THZ10 THz power meter based on pyroelectric detection with large active area and fast response. Combined with a current preamplifier, it enables power and energy measurement of THz lasers for cw, chopped and pulsed THz sources.
Description
1. Overview
The THZ10 is a pyroelectric THz detector / power meter optimized for the THz spectral region. It features small size, large active area and short response time. A broadband metallic absorber (approx. 50% absorption, 25% reflection, 25% transmitted into a dump) is used for all THz detector types.
2. Key Specifications
· Detector type: Pyroelectric detector
· Optimized range: THz region
· Active area diameter: 10 mm
· Thermal time constant: 50 ms
· Max. power density: 15 mW/cm²
· Typical current sensitivity: 0.5–0.6 µA/W
· Rise time: 100 µs
· Max. chopper rate: 500 Hz
· Working range: 8 µW – 10 mW
3. Typical Applications
THz laser power measurement; cw laser measurement with chopper; pulsed THz energy measurement (µJ/mJ range with VPA); THz spectroscopy and imaging; laboratory synchronization.
Specifications
| Diameter of active area | 10 mm |
| Thermal time constant | 50 ms |
| Max. power density | 15 mW/cm² |
| Typical current sensitivity | 0.5–0.6 µA/W |
| Rise time | 100 µs |
| Max. chopper rate | 500 Hz |
| Working range | 8 µW – 10 mW |
| Energy sensitivity | >500 V/J |
| Min. detectable energy | 0.5 µJ |
| Max. rep. rate (energy mode) | 30 pps |
| Calibration | PTB Berlin 1.4 THz |