Transverse-pumping geometry can be utilized for efficient generation of far-infrared radiation in 13-30 μm based on difference-frequency generation in periodically-poled LiNbO3 at its polariton resonances. High conversion efficiencies are achievable.
© 2011 OSA
Y. J. Ding, "Transforming Conventional PPLN-Based Frequency Converters to Cover 13-30 microns: Bridging Gap between Mid-Infrared and Terahertz Regions," in CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper JThB96.
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