The Dragging Effect in Ag/Pd Nanocomposite Film: Generation of Bipolar Pulses
- Authors: Mikheev G.M.1, Saushin A.S.1, Styapshin V.M.1, Svirko Y.P.2
-
Affiliations:
- Institute of Mechanics, Udmurt Federal Research Center, Ural Branch
- Institute of Photonics
- Issue: Vol 44, No 9 (2018)
- Pages: 844-847
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/207942
- DOI: https://doi.org/10.1134/S1063785018090250
- ID: 207942
Cite item
Abstract
Characteristic features of the phenomenon of longitudinal photocurrent generation in Ag/Pd nanocomposite films under the obliquely incident nanosecond pulsed laser irradiation with wavelengths in the 1350–4000 nm range have been studied for the first time. Films of 20-μm thickness consisting of nanocrystals of Ag–Pd solid solution and palladium oxide (PdO) were obtained using a thick-film technology. The influence of radiation wavelength on photocurrent pulses has been studied for s- and p-polarized laser pumping. It is established that the photocurrent pulses generated by s-polarized pumping in the 1350–4000 nm wavelength range are monopolar, while p-polarized pumping can generate both mono- and bipolar pulses depending on the wavelength. The obtained results are explained by simultaneous generation of photocurrent due to the dragging effect and the surface photogalvanic effect.
About the authors
G. M. Mikheev
Institute of Mechanics, Udmurt Federal Research Center, Ural Branch
Author for correspondence.
Email: mikheev@udman.ru
Russian Federation, Izhevsk, Udmurtia, 426067
A. S. Saushin
Institute of Mechanics, Udmurt Federal Research Center, Ural Branch
Email: mikheev@udman.ru
Russian Federation, Izhevsk, Udmurtia, 426067
V. M. Styapshin
Institute of Mechanics, Udmurt Federal Research Center, Ural Branch
Email: mikheev@udman.ru
Russian Federation, Izhevsk, Udmurtia, 426067
Yu. P. Svirko
Institute of Photonics
Email: mikheev@udman.ru
Finland, Joensuu, 80100