Open Access
Scientific Reports, volume 9, issue 1, publication number 9146
Methodical inaccuracy of the Z-scan method for few-cycle terahertz pulses
Publication type: Journal Article
Publication date: 2019-06-24
PubMed ID:
31235853
Multidisciplinary
Abstract
Modern sources of THz radiation generate high-intensity pulses allowing to observe nonlinear effects in this spectral range. To describe many nonlinear effects theoretically, it is necessary to know the nonlinear refractive index coefficient of optical materials. The work studies the applicability of the Z-scan method to determine the nonlinear refractive index coefficient in the THz frequency range for few-cycle pulses. We have discussed the correctness of the known Z-scan method for calculating the nonlinear refractive index coefficient for broadband THz radiation regarding number of cycles pulses have. We have demonstrated that the error in determining the nonlinear refractive index coefficient is always greater than 70% for true single-cycle pulses. With the increase in the number of oscillations to the measurement error shows strong dependence on the sample thickness and can vary from 2% to 90% regarding the parameters chosen. The fact that such radiation dispersion length is commensurate with the nonlinear length or even less than the latter results in the discrepancy mentioned. It is demonstrated that the decrease in the sample thickness leads to the reduction of the nonlinear refractive index coefficient determination error, and this error is <2% when the ratio between the sample thickness and the pulse longitudinal spatial size is ≤1. This can relate to the fact that the nonlinear effects in such a thin sample occur faster than the dispersion ones.
Citations by journals
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1
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Photonics
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Photonics
1 publication, 6.25%
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Journal of the Optical Society of America B: Optical Physics
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1 publication, 6.25%
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Physical Review Applied
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1 publication, 6.25%
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Physical Review A
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1 publication, 6.25%
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Optics Letters
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1 publication, 6.25%
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Optical and Quantum Electronics
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1 publication, 6.25%
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Applied Sciences (Switzerland)
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1 publication, 6.25%
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Frontiers of Optoelectronics
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1 publication, 6.25%
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Optical Materials
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1 publication, 6.25%
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Journal of Molecular Liquids
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Journal of Molecular Liquids
1 publication, 6.25%
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Advanced Optical Materials
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1 publication, 6.25%
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Bulletin of Rehabilitation Medicine
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Bulletin of Rehabilitation Medicine, 1, 6.25%
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1 publication, 6.25%
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1 publication, 6.25%
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1
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Citations by publishers
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1
2
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Multidisciplinary Digital Publishing Institute (MDPI)
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Multidisciplinary Digital Publishing Institute (MDPI)
2 publications, 12.5%
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Optical Society of America
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Optical Society of America
2 publications, 12.5%
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American Physical Society (APS)
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American Physical Society (APS)
2 publications, 12.5%
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Springer Nature
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Springer Nature
2 publications, 12.5%
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Elsevier
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Elsevier
2 publications, 12.5%
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Wiley
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Wiley
1 publication, 6.25%
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National Medical Research Center For Rehabilitation And Balneology
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National Medical Research Center For Rehabilitation And Balneology, 1, 6.25%
National Medical Research Center For Rehabilitation And Balneology
1 publication, 6.25%
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Publishing House Helvetica
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Publishing House Helvetica, 1, 6.25%
Publishing House Helvetica
1 publication, 6.25%
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1
2
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- We do not take into account publications that without a DOI.
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- Statistics recalculated weekly.
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Melnik M. et al. Methodical inaccuracy of the Z-scan method for few-cycle terahertz pulses // Scientific Reports. 2019. Vol. 9. No. 1. 9146
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Melnik M., Vorontsova I., Putilin S., Tcypkin A., Kozlov S. Methodical inaccuracy of the Z-scan method for few-cycle terahertz pulses // Scientific Reports. 2019. Vol. 9. No. 1. 9146
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TY - JOUR
DO - 10.1038/s41598-019-45735-6
UR - https://doi.org/10.1038%2Fs41598-019-45735-6
TI - Methodical inaccuracy of the Z-scan method for few-cycle terahertz pulses
T2 - Scientific Reports
AU - Melnik, Maksim
AU - Vorontsova, Irina
AU - Putilin, Sergey
AU - Kozlov, Sergei
AU - Tcypkin, Anton
PY - 2019
DA - 2019/06/24 00:00:00
PB - Springer Nature
IS - 1
VL - 9
PMID - 31235853
SN - 2045-2322
ER -
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@article{2019_Melnik,
author = {Maksim Melnik and Irina Vorontsova and Sergey Putilin and Sergei Kozlov and Anton Tcypkin},
title = {Methodical inaccuracy of the Z-scan method for few-cycle terahertz pulses},
journal = {Scientific Reports},
year = {2019},
volume = {9},
publisher = {Springer Nature},
month = {jun},
url = {https://doi.org/10.1038%2Fs41598-019-45735-6},
number = {1},
doi = {10.1038/s41598-019-45735-6}
}