Terahertz Spectroscopy

Toptica introduces its Teraflash system, a table-top platform for time-domain terahertz spectroscopy. The all-fiber design is based on mature 1.5 μm telecom technology, combining the Company’s femtosecond fiber lasers and state-of-the-art Ingaas antennas. Using a highly precise delay stage, the system achieves a peak dynamic range of more than 70 dB. Users can choose between a “precise scan” mode and a “fast scan” mode.

In “precise scan” mode a bandwidth of 4 THz and a resolution better than 10 GHz are attained. Alternatively, in “fast scan” mode, a pulse trace is acquired in only 50 ms. The fiber-coupled antenna modules can be conveniently arranged, depending on the needs of the experiment. Integrated in the system is the Company’s Femtoferb 1560, a compact and very fast laser. The SAM mode-locked fiber oscillator and the usage of polarization-maintaining fibers ensure a high robustness and alignment-free, “hands-off” operation.