| Zhang Shao-hua,Yao Jian-quan,Zhou Rui,Wen Wu-qi,Xu De-gang,Wang Peng.Terahertz generation based on four-wave mixing difference frequency by resonance-enhanced third-order nonlinear of media[J].Optoelectronics Letters,2011,7(6):415-418 |
| Terahertz generation based on four-wave mixing difference frequency by resonance-enhanced third-order nonlinear of media |
| Author Name | Affiliation | | Zhang Shao-hua | Key Laboratory of Optoelectronics Information and Technical Science, Ministry of Education of China, Institute of Lasers and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, TianJin University； | | Yao Jian-quan | Key Laboratory of Optoelectronics Information and Technical Science, Ministry of Education of China, Institute of Lasers and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, TianJin University； | | Zhou Rui | Key Laboratory of Optoelectronics Information and Technical Science, Ministry of Education of China, Institute of Lasers and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, TianJin University； | | Wen Wu-qi | Key Laboratory of Optoelectronics Information and Technical Science, Ministry of Education of China, Institute of Lasers and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, TianJin University； | | Xu De-gang | Key Laboratory of Optoelectronics Information and Technical Science, Ministry of Education of China, Institute of Lasers and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, TianJin University； | | Wang Peng | Key Laboratory of Optoelectronics Information and Technical Science, Ministry of Education of China, Institute of Lasers and Optoelectronics, College of Precision Instrument and Optoelectronics Engineering, TianJin University； |
|
| Abstract: |
| Using nanosecond pulse near-infrared and mid-infrared laser pulses as the pump source, we obtain terahertz wave sources via four-wave difference frequency mixing. From the coupled wave theory, we analyze the four-wave mixing process of GaSe crystal and alkali metal vapor in detail, get the analytical expression of terahertz wave output power, and discuss the conditions for achieving phase matching. By adjusting the pump frequency, the third-order nonlinear polarization of alkali metal vapor is r... |
| Hits: 4145 |
| Download times: 228 |
|
| View Full Text Download reader |
|
|
|
