Measure UV to IR optical radiation with the Merlin® Digital Lock-in Radiometry System and its family of calibrated detectors. The unique Smart Ranging® feature gives you seamless gain switching. Over seven decades of input signal values, sub-microvolts to volts, are easily accommodated without electrical transients. We offer single and dual channel RS-232 and GPIB-488 Merlin® instruments; each channel includes a reference capability. A broad selection of calibrated detectors, which have preamplifiers matched to Merlin®, are available.
Building a Radiometry System
Click Radiometers to shop or browse all of our standard models, or select the Merlin Radiometry System or one of its compatible detectors below for more information on our products and capabilities.
| Radiometers |
Features |
 |
Merlin™ Digital Lock-in Radiometry System |
• Lock-in detection improves S/N and insulates you from ambient radiation
• Usable from 180 nm to 40 µm, with interchangeable detectors
• Calibrated measurements
• Reference input corrects your measurement channel to compensate for source drift
• Dual signal channel option lets you take measurements over a very broad spectral range without manually changing detectors
• Smart Ranging™; a seamless gain switching feature always ensures the best amplification range
• Display measurement in W, W cm-2, dBm or V |
| Detectors for Merlin™ Radiometry System |
Features |
 |
InGaAs Detectors for Merlin™ Radiometer |
• Excellent speed of response and linearity
• Room temperature and TE cooled models
• 3 mm diameter active area
• Calibrated models |
 |
Silicon Detectors for Merlin™ Radiometer |
• Silicon and UV Silicon versions
• Vertsatile and highly sensitive detectors
• Room temperature and TE cooled models
• Large, 10x10 mm active areas
• Calibrated models |
 |
Germanium Detectors for Merlin™ Radiometer |
• Stable, linear detectors
• 700 to 1800 nm usable range
• Room temperature and TE cooled models
• 5 mm diameter active area
• Calibrated models |
|
PbS and PbSe Detectors for Merlin™ Radiometer |
• Excellent detectors for the NIR
• Room temperature and TE cooled models |
 |
TE Cooled HgCdZnTe Detectors for Merlin™ Radiometer |
• 2.8 to 6 µm spectral range
• Optically immersed detector |
 |
Photomultiplier Tubes for Merlin™ Radiometer |
• Very low light level detectors
• Models to cover 160 to 1100 nm |
 |
Pyroelectric Detectors for Merlin™ Radiometer |
• Sensitive over broad spectral range
• Good, stable response |