首页》回顾》金属结构件的高性能快速响应激光修复技术

Off-axis THz Parametric Oscillator

演讲课题:Off-axis THz Parametric Oscillator

演讲人:黄衍介Yen-Chieh Huang

演讲摘要:

All the previously reported Terahertz (THz) parametric oscillators resonate the signal lasers red-shifted from the pump lasers, suffering from low parametric gain and high absorption loss for the generated THz waves. Here, we report a generic THz parametric oscillator that resonates a THz wave with a zigzag path in a pump-filled monolithic crystal. By pumping such an off-axis lithium-niobate oscillator with a pulsed Nd:YAG laser having an axial-mode spacing matched to the THz oscillator’s mode spacing, we generated an ultra-broad red-shifted frequency comb between 1065 and 1085 nm at the output, which corresponds to a 5-octave-spanning THz-frequency comb in the idler spectrum. We also demonstrated a signal-seeded off-axis THz parametric oscillator, which generates 90-W narrow-line radiation at 2.1 THz and achieved 46% pump depletion with only 4-mJ pump energy in a 460-ps pulse width. This work is supported by Ministry of Science and Technology under Contract MOST 105-2112-M-007 -021 -MY3.

黄衍介Yen-Chieh Huang

台湾清华大学光电工程研究所所长

台湾清华大学光电研究中心主任

Education

Jan.1995, PhD, Electrical Engineering Department, Stanford University, USA

Jan. 1991, MS, Electrical Engineering Department, Stanford University, USA

Jan. 1987, BS, Electrical Engineering Department, National Sun Yat-Sen University, Taiwan

 

Research Interests

Laser, Quasi-phase-matching nonlinear optics, optical THz radiation, free-electron laser, laser-driven particle acceleration

Honor & Award,荣誉

1. Member, Phi Tau Phi Honorary Society

2. 2001 Outstanding Young Electrical Engineer Award, Chinese Institute of Electrical Engineering.  (电机工程学会优秀青年电机工程师奖)

3. 2004 Outstanding Young Optical Engineer Award from the Optical Engineering Society of the Republic of China (光学工程学会青年光学工程奖章)

4. 2005, 国立清华大学杰出教学奖

5. 2007, 国立清华大学杰出产学合作奖

6. 2017 国立中山大学杰出校友

7. 2018 国立中山大学工学院杰出校友

现场照片

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