Kotlyar Maria V, Mapranathukaran Jenitta Johnson, Biagi Gabriele, Walsh Anton, Lendl Bernhard, O'Faolain Liam
Centre for Advanced Photonics and Process Analysis, Munster Technological University, Bishopstown, T12 P928 Cork, Ireland.
Tyndall National Institute, Dyke Parade, T12 PX46 Cork, Ireland.
Sensors (Basel). 2024 Jun 6;24(11):3679. doi: 10.3390/s24113679.
We demonstrated, for the first time, micro-ring resonator assisted photothermal spectroscopy measurement of a gas phase sample. The experiment used a telecoms wavelength probe laser that was coupled to a silicon nitride photonic integrated circuit using a fibre array. We excited the photothermal effect in the water vapor above the micro-ring using a 1395 nm diode laser. We measured the 1f and 2f wavelength modulation response versus excitation laser wavelength and verified the power scaling behaviour of the signal.
我们首次展示了微环谐振器辅助的气相样品光热光谱测量。该实验使用了一个电信波长探测激光器，它通过光纤阵列耦合到氮化硅光子集成电路上。我们使用1395纳米二极管激光器激发微环上方水蒸气中的光热效应。我们测量了一阶和二阶波长调制响应与激发激光波长的关系，并验证了信号的功率缩放行为。
