Figure 1 | Scientific Reports

Figure 1

From: Dynamic terahertz spectroscopy of gas molecules mixed with unwanted aerosol under atmospheric pressure using fibre-based asynchronous-optical-sampling terahertz time-domain spectroscopy

Figure 1

Experimental setup.

Rb-FS: rubidium frequency standard; PCA1: strip-line-shaped LT-InGaAs/InAlAs photoconductive antenna for THz generation; BSs: pellicle beam-splitters; PCA2: dipole-shaped LT-InGaAs/InAlAs photoconductive antenna for THz detection; AMP: current preamplifier; LD: laser diode (λ = 635 nm); OC: optical chopper; PD: photodetector; LIA: lock-in amplifier; PG: pulse generator.

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