This system is based on Pendar’s proprietary monolithic distributed feedback (DFB) quantum cascade laser (QCL) array.
The DFB QCL array source is a highly stable, rapidly and continuously wavelength tunable broadband infrared source that can be used for illumination for various spectroscopic applications. Each element of the array is individually addressable and emits at a different wavelength by design. The output is beam-combined using a compact optical design without moving parts. The system includes custom electronics and software allows for complete control and flexible operation of the laser source.
Pendar Technologies holds an exclusive license for the technology, developed by our founding team in the group of Prof. Capasso at Harvard.
Pendar’s Q100 broadband source targets the strongest absorption bands in the mid-infrared spectral region with high brightness and eye-safe illumination. We currently offer arrays in the 6.7 – 10.5 μm range with each of the arrays covering about 1 μm of spectral range. Please contact us for other wavelength regions within the 4 µm-12 µm mid-IR window.
Incorporation of Q100 into any spectroscopic system is straightforward as our module includes both the hardware and software for laser control. Trigger and clock signals allow convenient synchronization with existing systems.
Plug-and-play solution for advanced spectroscopy experiments
Pendar can also help in developing spectroscopic systems by providing data acquisition electronics that integrates with laser system electronics to further reduce noise
C.-S. Liao et al., “Portable broadband photoacoustic spectroscopy for trace gas detection by quantum cascade laser arrays,” Opt. Lett. 45, 3248 (2020).
Giglio et al., “Broadband detection of methane and nitrous oxide using a distributed-feedback quantum cascade laser array and quartz-enhanced photoacoustic sensing,” Photoacoustics 17, 100159 (2020).
Razumtcev et al., “Label-Free Autofluorescence-Detected Mid-Infrared Photothermal Microscopy of Pharmaceutical Materials,” Anal. Chem. 94, 6512–6520 (2022).
“Are discrete-wavelength QCL arrays the future of mid-IR spectroscopy?” Laser Focus World, Jan 20, 2022
M. Michel et al., “Open-path spectroscopic methane detection using a broadband monolithic distributed feedback-quantum cascade laser array,” Appl. Opt. 56, E23 (2017)