Broadband terahertz pulse emission from ZnGeP2

Broadband terahertz pulse emission from ZnGeP2

Optical rectification is demonstrated in (110)-cut ZnGeP(2) (ZGP) providing broadband terahertz (THz) generation. The source is compared to both GaP and GaAs over a wavelength range of 1150 nm to 1600 nm and peak-intensity range of 0.5 GW/cm(2) to 40 GW/cm(2). ZGP peak-to-peak field amplitude is lar...

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Veröffentlicht in:Optics letters 2012-03, Vol.37 (5), p.788-790
Hauptverfasser: Rowley, J D, Pierce, J K, Brant, A T, Halliburton, L E, Giles, N C, Schunemann, P G, Bristow, A D
Format: Artikel
Sprache:eng
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Zusammenfassung:Optical rectification is demonstrated in (110)-cut ZnGeP(2) (ZGP) providing broadband terahertz (THz) generation. The source is compared to both GaP and GaAs over a wavelength range of 1150 nm to 1600 nm and peak-intensity range of 0.5 GW/cm(2) to 40 GW/cm(2). ZGP peak-to-peak field amplitude is larger than in the other materials due to either lower nonlinear absorption or larger second-order nonlinearity. This material is well suited for broadband THz generation across a wide range of infrared excitation wavelengths.
ISSN:1539-4794
DOI:10.1364/OL.37.000788