Transient pump-probe absorption spectroscopy of semiconductor nanodumbbells

Mikhail Yu. Leonov; Ivan D. Rukhlenko; Anvar S. Baimuratov; Alexander V. Baranov; Yurii K. Gun'ko; Anatoly V. Fedorov

doi:10.1117/12.2051755

2 May 2014 Transient pump-probe absorption spectroscopy of semiconductor nanodumbbells

Mikhail Yu. Leonov, Ivan D. Rukhlenko, Anvar S. Baimuratov, Alexander V. Baranov, Yurii K. Gun'ko, Anatoly V. Fedorov

Proceedings Volume 9126, Nanophotonics V; 91262C (2014) https://doi.org/10.1117/12.2051755
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

We develop a theory of time-resolved pump–probe optical spectroscopy for modelling interband absorption by an anisotropic semiconductor nanodumbbell. By considering three transition schemes where the pump and probe pulses are nearly resonant to a dipole-allowed interband transition of different elements of the nanodumbbell, and assuming that the populations of the exited states are coupled through the nonradiative relaxation processes, we analytically calculate the absorption efficiency of the probe as a function of its delay from the pump for relatively short pulses. The obtained functional dependency, being the sum of exponentials with exponents proportional to the energy relaxation rates of the excited electronic states, is useful for the analysis of experimental absorption spectra aiming at retrieving the relaxation parameters of the nanodumbbell’s electronic subsystem.

Citation Download Citation

Mikhail Yu. Leonov, Ivan D. Rukhlenko, Anvar S. Baimuratov, Alexander V. Baranov, Yurii K. Gun'ko, and Anatoly V. Fedorov "Transient pump-probe absorption spectroscopy of semiconductor nanodumbbells", Proc. SPIE 9126, Nanophotonics V, 91262C (2 May 2014); https://doi.org/10.1117/12.2051755

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available