Nonlinear Optical Response of Chinese Teas Probed by Spatial Self-Phase Modulation

Chinese tea is the most highly consumed beverage globally. Its different types exhibit a strong nonlinear optical response as probed previously by Z-scan technique at various time scales. In this work, infusions of commercially available black, green, and white Chinese teas, prepared by running one...

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Bibliographic Details
Published in:	Brazilian journal of physics Vol. 50; no. 4; pp. 394 - 398
Main Authors:	de Souza, Diogo L. M., Bittencourt, Marcos V. G., Lenart, Vinícius M., da Cruz, Gerson K., Turchiello, Rozane F., Gómez, Sergio L.
Format:	Journal Article
Language:	English
Published:	New York Springer US 01-08-2020 Springer Nature B.V
Subjects:	Condensed Matter Nonlinear optics Nonlinear response Phase modulation Physics Physics and Astronomy Refractivity Tea Chinese tea Nonlinear optics Spatial self-phase modulation
Online Access:	Get full text
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Summary:	Chinese tea is the most highly consumed beverage globally. Its different types exhibit a strong nonlinear optical response as probed previously by Z-scan technique at various time scales. In this work, infusions of commercially available black, green, and white Chinese teas, prepared by running one cycle of a Soxhlet extraction, were studied by spatial self-phase modulation of a CW laser; each sample was found to have a different nonlinear refractive index n 2 , which can be used to distinguish these teas.
ISSN:	0103-9733 1678-4448
DOI:	10.1007/s13538-020-00756-9