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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