Y-Ba-Cu-O Nanostripes for Optical Photon Detection
Paper i proceeding, 2015

Nanowires of Y-Ba-Cu-O, with the thickness of 50 nm and the width ranging from 90 nm to 500 nm have been successfully grown on lanthanum aluminate substrates for photon detection experiments. The nanowires were up to 10-mu m long and formed a meander structure, covering the area of up to 30x10 mu m(2) with a fill factor of 50%. The samples were excited using optical laser pulses at a 1550 nm wavelength and resulting photoresponse signals were measured as a function of both temperature and normalized bias current. Presence of two, distinct regimes in the photoresponse temperature dependence has been clearly evidenced, suggesting different physical mechanisms of the signal formation. Presented experimental results shed new light on prospects of implementation of high-temperature superconducting oxides in photon detection and counting.

optical photoresponse

superconducting single-photon detectors

high-temperature superconductors

Superconducting nanostripes

Författare

G. P. Pepe

Universita degli Studi di Napoli Federico II

L. Parlato

Universita degli Studi di Napoli Federico II

M. Ejrnaes

Superconductors, oxides and other innovative materials and devices

R. Cristiano

Superconductors, oxides and other innovative materials and devices

Riccardo Arpaia

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

F. Tafuri

Università degli Studi della Campania Luigi Vanvitelli

D. Golubev

Aalto-Yliopisto

Thilo Bauch

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Floriana Lombardi

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

R. Sobolewski

University of Rochester

Proceedings of SPIE - The International Society for Optical Engineering

0277786X (ISSN) 1996756X (eISSN)

Vol. 9504 950406

Ämneskategorier

Atom- och molekylfysik och optik

DOI

10.1117/12.2179677

ISBN

978-1-62841-625-1

Mer information

Senast uppdaterat

2018-06-20