Blog post-Terahertz generation from Cu ion implantation into lithium niobate

http://www.lithiumniobate.net/2014/01/terahertz-generation-from-cu-ion.html

Posted by Victor Chan at 6:04 PM

In this letter, the authors present first observation of terahertz generation from Cu implantation of lithium niobate crystal substrate. Lithium niobate single crystal is grown by Czochralski method. Metal nanoparticles synthesized by Cu ion implantation were implanted into lithium niobate single crystal using metal vapor vacuum arc (MEVVA) ion source. 1 kHz, 35 fs laser pulse centred at 800 nm was focused onto the samples. The supercontinuum spectra of the sample are obtained. Terahertz was generated via this kind of sample and investigated using the electro-optical sampling technique. The findings suggest that under the investigated implantation parameter, a strong spectral component in excess of 0.46 THz emission was found from Cu ion implantation of lithium niobate.

Highlights

• We first observation of terahertz generation from Cu implantation of lithium niobate crystal substrate.

• Lithium niobate single crystal is grown by Czochralski method. Cu nanoparticles in lithium niobate have been formed by using MEVVA ion source.

• The THz bandwidth and center from this kind of sample were determined.

Source:Journal of Luminescence

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