Theoretical seminar | 01 February 2023

The results of a dissertation work on noncollinear electro-optic sampling of pulsed terahertz radiation by femtosecond laser pulses in cm-thick electro-optic crystals will be presented. Using cm-thick crystals allowed us to achieve experimentally the spectral resolution as high as several GHz. Three different noncollinear experimental schemes will be discussed, i.e., ellipsometric and nonellipsometric schemes with a thick GaAs crystal and the probe optical beam of the 1.55 μm wavelength and an ellipsometric scheme with a LiNbO3 crystal attached to a Si prism and the probe beam of the 1.55 μm or 0.8 μm wavelength.

Main paper/arXiv, related to the seminar, and other references

1. Mashkovich E. A., Shugurov A. I., Ozawa S., Estacio E., Tani M., Bakunov M.I. Noncollinear electro-optic sampling of terahertz waves in a thick GaAs crystal // IEEE Trans. Terahertz Sci. Technol. 2015. Vol. 5, № 5. P. 732–736.
2. Shugurov A.I., Mashkovich E.A., Bodrov S.B., Tani M., Bakunov M.I. Nonel-lipsometric electro-optic sampling of terahertz waves in GaAs // Opt. Express. 2018. Vol. 26, № 18. P. 23359–23365.
3. Shugurov A.I., Bodrov S.B., Mashkovich E.A., Kitahara H., Abramovsky N.A., Tani M., Bakunov M.I. Noncollinear electro-optic sampling detection of te-rahertz pulses in a LiNbO3 crystal while avoiding the effect of intrinsic birefringence // Opt. Express. 2022. Vol. 30, № 3. P. 3741–3748.