Table 2.
An excerpt of past acoustic resonator-enhanced photoacoustic demonstrations. All references have used a microphone as sound transducer. Abbreviations LD: Laser Diode, QCL: Quantum Cascade Laser, OPO: Optical Parametric Oscillator, LED: Light-Emitting Diode.
| Target Gas (es) | Light Source | Reference |
|---|---|---|
| Nitrogen Dioxide (NO2) | LD | [108,109,110,111,112] |
| Multimode LD | [113] | |
| LED | [114,115,116,117,118] | |
| Nitric Oxide (N2O) | QCL | [112,119] |
| OPO | [120] | |
| Nitrogen oxide (NO) | QCL | [121] |
| LD | [122] | |
| Ammonia (NH3) | QCL | [123,124,125] |
| CO2 laser | [126,127] | |
| LD | [128] | |
| Carbon Dioxide (CO2) | QCL | [129] |
| CO2 laser | [130] | |
| LD | [131,132,133,134] | |
| OPO | [135] | |
| Hydrogel Sulfide (H2S) | QCL | [136] |
| CO2 Laser | [130] | |
| LD | [137,138,139] | |
| Water (H2O) | QCL | [125,140] |
| LD | [133,134,141] | |
| LED | [142] | |
| Acetylene (C2H2) | CO2 Laser | [143] |
| LD | [87,144,145] | |
| Methane (CH4) | QCL | [146,147,148] |
| LD | [87,133,146,149] | |
| OPO | [150] | |
| Ozone (O3) | QCL | [151] |
| quadrupled Nd:YAG | [152] | |
| Hydrogen Chloride (HCl) | LD | [149,153] |
| Ethylene (C2H4) | CO2 Laser | [98] |