Absorption Of Ultrashort Electromagnetic Pulses By Ito Nanoparticles

Abstract

The paper investigates the cross-section and probability of absorption of ultrashort electromagnetic pulses by ITO nanoparticles in a dielectric matrix. It discusses the suitability of using the total probability of photoabsorption instead of the probability per unit time for such pulses. It is shown that in the case of negative detuning of the pulse carrier frequency from the plasmon resonance frequency, the photoabsorption probability is a nonlinear function of the pulse duration. For detuning with sufficiently large magnitude, the formation of a maximum is possible in this functional relationship, the position of which depends on the refractive index of the matrix. A method is proposed for measurement of environmental parameters by the analysis of time dependence of this photoprocess. Calculations are performed for a corrected Gaussian pulse and ITO nanoparticles with different doping levels.

Publication Date

12-28-2017

Publication Title

Journal of Physical Chemistry C

Volume

121

Issue

51

Number of Pages

28581-28586

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/acs.jpcc.7b10890

Socpus ID

85040103609 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85040103609

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