[1] Rabbani M S, Ghafouri-Shiraz H. Liquid crystalline polymer substrate-based THz microstrip antenna arrays for medical applications[J]. IEEE Antennas and Wireless Propagation Letters, 16, 1533-1536(2017).

[2] Duka M V, Dvoretskaya L N, Babelkin N S et al. Numerical and experimental studies of mechanisms underlying the effect of pulsed broadband terahertz radiation on nerve cells[J]. Quantum Electronics, 44, 707-712(2014).

[3] Grossman E, Dietlein C, Ala-Laurinaho J et al. Passive terahertz camera for standoff security screening[J]. Applied Optics, 49, E106-E120(2010).

[4] Yang T, Ge J C, Zhou Y et al. A terahertz wave modulation system based on optical modulation of the plasma frequency of a semiconductor[J]. Infrared and Laser Engineering, 48, 0203005(2019).

[5] Kong Y W, Li Q L, Yin T C et al. Widely tunable multi-wavelength laser operating at 2 μm band based on four wave mixing[J]. Journal of Hangzhou Dianzi University (Natural Sciences), 39, 15-20(2019).

[6] Wang X L, Fei Y, Li L J et al. Detection of the spatiotemporal field of a single-shot terahertz pulse based on spectral holography[J]. Chinese Physics B, 23, 064202(2014).

[7] Hamadou A, Thobel J L, Lamari S. Optical external efficiency of terahertz quantum cascade laser based on Čerenkov difference frequency generation[J]. Journal of Nonlinear Optical Physics & Materials, 28, 1950036(2019).

[8] Wang Y H, Zhao C M, Cai Z T et al. LD pumped 1061 nm/1064 nm dual-wavelength Nd∶ YAG microchip laser[J]. Chinese Journal of Lasers, 47, 0301002(2020).

[9] Takeuchi H, Yanagisawa J, Tsuruta S et al. Frequency-tunable terahertz electromagnetic wave emitters based on undoped GaAs/n-type GaAs epitaxial layer structures utilizing sub-picosecond-range carrier-transport processes[J]. Journal of Luminescence, 131, 531-534(2011).

[10] Qu C B, Kang M Q, Xiang X J et al. Theoretical study of 4.3 μm dual-wavelength pumped Dy∶InF3 high-energy mid-infrared fiber lasers[J]. Chinese Journal of Lasers, 47, 0801003(2020).

[11] Zheng S H, Yang Y H. High precision and accuracy wavelength tuning characteristics of modulated grating Y-branch tunable lasers[J]. Chinese Journal of Lasers, 46, 0201001(2019).

[12] McKay A, Dawes J M. Tunable terahertz signals using a helicoidally polarized ceramic microchip laser[J]. IEEE Photonics Technology Letters, 21, 480-482(2009).

[13] Zhao P, Ragam S, Ding Y J et al. Investigation of terahertz generation from passively Q-switched dual-frequency laser pulses[J]. Optics Letters, 36, 4818-4820(2011).

[14] Zhao P, Ragam S, Ding Y J et al. Power scalability and frequency agility of compact terahertz source based on frequency mixing from solid-state lasers[J]. Applied Physics Letters, 98, 131106(2011).

[15] Ke Y Z, Hu M, Li P et al. Experimental study on the power balance mechanism of neodymium-doped dual-frequency microchip lasers[J]. Journal of Optoelectronics·Laser, 30, 1-6(2019).

[16] Délen X, Balembois F, Georges P. Temperature dependence of the emission cross section of Nd∶YVO4 around 1064 nm and consequences on laser operation[J]. Journal of the Optical Society of America B, 28, 972(2011).

[17] Cai M L, Hu M, Dai R et al. Experimental study of emission cross section spectra and microchip laser spectra of Nd∶GdVO4 and Nd∶YVO4 crystals[J]. Chinese Journal of Lasers, 44, 1101004(2017).

[18] Hu M, Zhang Y, Wei M et al. Microchip dual-frequency laser with well-balanced intensity utilizing temperature control[J]. Optics Express, 24, 23383-23389(2016).

[19] Cao H, Feng G, Fan T et al. Comparison of thermal effects of Nd∶YAG,Nd∶YVO4 and Nd∶GdVO4 crystal slab by laser diode end-pumped[J]. Infrared & Laser Enginering, 40, 2365-2369(2011).