Measuring the Optical Absorption of Single Nanowires

Swinkels, Milo Yaro and Campo, Alessio and Vakulov, Daniel Vakulov and Wonjong, Kim and Gagliano, Luca and Escobar Steinvall, Simon Escobar and Detz, Hermann and De Luca, Marta and Lugstein, Alois and Bakkers, Erik P. A. M. and Fontcuberta i Morral, Anna and Zardo, Ilaria. (2020) Measuring the Optical Absorption of Single Nanowires. Physical Review Applied, 14. 024045.

[img] PDF - Published Version
Restricted to Repository staff only


Official URL: https://edoc.unibas.ch/79564/

Downloads: Statistics Overview


In this work we present a method to quantitatively measure the optical absorption of single nanowires that can be applied over a wide range of temperatures and with a high enough sensitivity to enable the measurement of below-band-gap absorption (as well as the absorption of single molecules). The method is based on accurately measuring the heat flow coming from a nanowire when it is illuminated by a laser beam. We experimentally verify this method by measuring the absorption of both a zincblende and a wurtzite GaAs, a wurtzite GaP, and a superlattice Zn 3 P 2 nanowire. Furthermore, we find that the Zn 3 P 2 nanowires have the largest absorption of all these materials. We analyze the advantages and disadvantages of the method and study its range of applicability.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimental Material Physics (Zardo)
UniBasel Contributors:Zardo, Ilaria and Swinkels, Milo Yaro and Campo, Alessio and De Luca, Marta
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
edoc DOI:
Last Modified:29 Apr 2021 12:44
Deposited On:29 Apr 2021 12:44

Repository Staff Only: item control page