Advanced search
Start date
Betweenand


Quantum-plasmonic engineering to improve the 1.53 μm radiative emission in Er3+-doped tellurite glasses under controlled temperature

Full text
Author(s):
Lozano, G. C. ; Rivera, V. A. G. ; Celaschi, S. ; Messaddeq, Y. ; Marega Jr, E.
Total Authors: 5
Document type: Journal article
Source: Materials Research Bulletin; v. 180, p. 10-pg., 2024-08-12.
Abstract

The plasmonic applications at low temperatures of metallic nanoparticles in glasses doped with rare-earth ions are not yet covered in-depth analysis in the literature. This paper insights into the coupling between gold nanoparticles and Er3+ embedded in tellurite glasses via luminescence enhancement of the emission centred at 1.53 mu m under controlled temperature. This enhancement is obtained for the sample with 24 h of heat treatment (TErAu24) concerning the Er3+ single doped (TEr) at room temperature under 980 nm excitation. The enhancement remains under cooling conditions, consequence of the strong coupling between the plasmon and the Er3+, attributed to an increment of the localized plasmon mode volume at low temperatures. Further, the band area increment of the TErAu24 sample comparing the spectra at 98 and 348 K is 414%, whereas for the TEr is about 348 %. These findings provide advanced understanding of the plasmonics on quantum emitters engineering. (AU)

FAPESP's process: 13/07276-1 - CEPOF - Optics and Photonic Research Center
Grantee:Vanderlei Salvador Bagnato
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 20/04835-3 - Controlling the polarization state of rare earth emissions in tellurite glasses from plasmonic nano antennas
Grantee:Gaston Lozano Calderón
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 22/05478-5 - Controlling the polarization state of rare-earth emissions in tellurite glasses from plasmonic nanostructures
Grantee:Gaston Lozano Calderón
Support Opportunities: Scholarships abroad - Research Internship - Doctorate