Narrow-band terahertz wave generation and detection in one periodically poled lithium niobate crystal

✍ Scribed by G.H. Ma; Q.B. Zhu; G.Kh. Kitaeva; I.I. Naumova

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 210 KB
• Volume: 273
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2007.01.031

✦ Synopsis

In this article, we present studies on therahertz (THz) wave generation and frequency up-conversion in a periodically poled lithium niobate (PPLN) crystal. A frequency at 1.37 THz was generated as femtosecond pump pulses passed through a PPLN crystal with grating periods of 30 lm. The pump-induced THz wave interacts with the probe wave in the crystal by frequency mixing. The frequency up-converted THz wave is easily detected by a normal photodiode. A new scheme for generation and detection of THz wave in one nonlinear crystal was proposed.