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. 2013 Nov 13;3:3200. doi: 10.1038/srep03200

Figure 3. THz wave generation with the best group velocity-matched conditions.

Figure 3

(a) THz wave generation setup. THz wave generation in HMQ-TMS crystals of different thicknesses (Ppump = 62 mW, D = 1.7 mm): (b) time-domain ETHz(t) traces, (c) the corresponding frequency spectra of ETHz(ν), (d) the frequency spectra of ETHz(ν) in the logarithmic scale, and (e) the peak-to-peak amplitude of ETHz(t) and the upper cut-off frequency of ETHz(ν). (f) THz wave generation by 0.22-mm-thick HMQ-TMS crystals as a function of pump average power Ppump (D = 3.0 mm): the peak-to-peak amplitude ETHz(t) and upper cut-off frequency in ETHz(ν) (see also Figure S6 in SI).