Lackner Maximilian, Schwarzott Michael, Winter Franz, Kögel Benjamin, Jatta Sandro, Halbritter Hubert, Meissner Peter
Institute of Chemical Engineering, Vienna University of Technology, Getreidemarkt, Wien, Austria.
Opt Lett. 2006 Nov 1;31(21):3170-2. doi: 10.1364/ol.31.003170.
The spectroscopic application of a new broadband microelectromechanical-system-tunable vertical cavity surface-emitting laser with single-mode coverage of 60 nm (245 cm(-1)) in a single, continuous sweep is described. The operation of the device is illustrated with high-resolution spectra of CO and CO2 over 110 cm(-1) (27 nm) and 67 cm(-1) (17 nm), respectively, with the CO band shown for high-pressure scans between 1 and 3 bars (0.1-0.3 MPa). The achieved tuning range opens up new opportunities for tunable diode laser absorption spectroscopy. The spectra were compared with HITRAN-derived model calculations. The benefits of a sensor based on this laser are greater speed, laser power, and tuning range.
描述了一种新型宽带微机电系统可调谐垂直腔面发射激光器的光谱应用，该激光器在单次连续扫描中具有60 nm（245 cm⁻¹）的单模覆盖范围。通过分别在110 cm⁻¹（27 nm）和67 cm⁻¹（17 nm）范围内的CO和CO₂高分辨率光谱说明了该器件的运行情况，其中CO波段显示了在1至3巴（0.1 - 0.3 MPa）之间的高压扫描。所实现的调谐范围为可调谐二极管激光吸收光谱开辟了新机遇。将这些光谱与基于HITRAN的模型计算进行了比较。基于这种激光器的传感器具有更高的速度、激光功率和调谐范围等优点。
