
Development and manufacture of pyroelectric energy measurement heads, thermal power measurement heads and THz detectors for laser applications.

SLT Sensor- und Lasertechnik GmbH
WildauNew on Amplifa
About SLT Sensor- und Lasertechnik
SLT Sensor- und Lasertechnik GmbH develops and manufactures laser measurement heads for power and energy measurement in Wildau (Brandenburg) – based on more than 30 and 40 years of experience respectively in laser and sensor technology. The product portfolio includes pyroelectric energy measurement heads, thermal power measurement heads (thermopile detectors of the LP, BB, HP and CP series), THz detectors with accessories, display devices as well as OEM sensors and module systems for industrial integration. Characteristic are uncompromisingly optimized absorber coatings: an organic black coating with 97±1 % absorption between 190 nm and 25 µm, a ceramic coating for high energy densities (among others Nd:YAG, excimer, CO2 lasers) and metallic absorbers for high repetition rates. Calibration is traceable to PTB Braunschweig and Berlin, optionally also at customer-specific wavelengths. In addition to standard products, the company offers custom designs, repairs, calibration and OEM manufacturing; sales are handled through an international distributor network in Europe and Asia.
- Site
- Wildau
- Processes
- Development and manufacture of pyroelectric energy measurement heads, Manufacture of thermal power measurement heads (thermopile detectors, LP, BB, HP, CP series), THz detectors and accessories (THz 10, THz 20, THz 30, HS types), OEM manufacturing of energy measurement sensors (PES, PEO, EMK, MCM, OEM Pyrobox series), OEM manufacturing of power measurement sensors (OEM Powermeter, OEM Powerbox), Calibration and recalibration of detectors (traceable to PTB Braunschweig/Berlin), Custom designs and customer-specific solutions (adaptation of existing products), Repair service for measurement heads and detectors
- Materials
- pyroelectric sensor material, organic black absorber coating (97±1 % absorption, 190 nm–25 µm), ceramic high-performance absorber coating (for YAG, excimer, CO2 lasers), metallic absorber (high thermal conductivity, high rep rates), HP coating (high power densities), thermopile material (thermocouples), Pyroelectric sensor material, Organic black absorber coating
- Certificates
- ISO 9001:2015, Calibration traceable to PTB
- Industries
- Laser technology, Sensor technology, Metrology, THz technology, OEM electronics
- 01
Engineering and product development
- 02
Sensor assembly (pyroelectric/thermopile)
- 03
Absorber coating
- 04
Calibration traceable to PTB
- 05
OEM manufacturing and service/repair
Sensor and absorber materials
Pyroelectric sensor material
Generates a charge proportional to the temperature change; no cooling required, wavelength-independent with complete absorption.
Organic black absorber coating
Broadband absorption of 97±1 % between 190 nm and 25 µm without wavelength correction.
Ceramic high-performance absorber coating
For high energy densities and high peak powers, among others with YAG, excimer and CO2 lasers.
Metallic absorber
High thermal conductivity for high repetition rates.
HP coating
For high power densities and medium energy densities, wavelength-dependent.
Thermopile material
Measures the temperature gradient along the heat flow to determine the average power.
Wildau site
Wildau
DEDevelopment, manufacturing and administration
- Materials
- Pyroelectric sensor material, thermopile material, absorber coatings (organic, ceramic, metallic, HP)
- Assembly of energy measurement heads
- Assembly of power measurement heads
- Calibration facility with PTB-traceable reference detectors
- YAG laser (355 nm) for calibration
- Diode laser (880 nm) for calibration
Products and components






Inside the production














Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Development and manufacture of pyroelectric energy measurement headsAssembly | – | – | – | – | pyroelectric sensor material, organic black absorber coating, ceramic high-performance absorber coating, metallic absorber |
| Manufacture of thermal power measurement heads (thermopile detectors, LP, BB, HP, CP series)Assembly | – | – | – | – | thermoelectric thermopile materials, absorber coatings (organic black, ceramic, HP) |
| THz detectors and accessories (THz 10, THz 20, THz 30, HS types)Assembly | – | – | – | – | pyroelectric sensor material, metallic broadband absorber |
| OEM manufacturing of energy measurement sensors (PES, PEO, EMK, MCM, OEM Pyrobox series)Assembly | – | – | – | – | – |
| OEM manufacturing of power measurement sensors (OEM Powermeter, OEM Powerbox)Assembly | – | – | – | – | – |
| Calibration and recalibration of detectors (traceable to PTB Braunschweig/Berlin)Testing | – | – | – | – | – |
| Custom designs and customer-specific solutions (adaptation of existing products)Engineering | – | – | – | – | – |
| Repair service for measurement heads and detectorsTesting | – | – | – | – | – |
| VUV energy and power detectors for 157 nm (PEM VUV, HP VUV)Assembly | – | – | – | – | – |
Additional services
Reference customers
Quality and calibration
The quality management system is certified to ISO 9001:2015. All detectors are calibrated with a reference detector calibrated at PTB Braunschweig and Berlin (355 nm YAG or 880 nm diode laser, customer wavelengths also available on request); THz detectors are calibrated at PTB Berlin at 1.4 THz.
| Evidence | Wildau |
|---|---|
| ISO 9001:2015 | |
| Calibration traceable to PTB |
History
More than 30 years of experience (website) or more than 40 years of experience (catalogue) in the development and manufacture of pyroelectric energy measurement heads and thermal power measurement heads