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Conformable Nanowire-in-Nanofiber Hybrids for Low-Threshold Optical Gain in the Ultraviolet

[Image: see text] The miniaturization of diagnostic devices that exploit optical detection schemes requires the design of light sources combining small size, high performance for effective excitation of chromophores, and mechanical flexibility for easy coupling to components with complex and nonplan...

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Autores principales: Portone, Alberto, Borrego-Varillas, Rocio, Ganzer, Lucia, Di Corato, Riccardo, Qualtieri, Antonio, Persano, Luana, Camposeo, Andrea, Cerullo, Giulio, Pisignano, Dario
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7393628/
https://www.ncbi.nlm.nih.gov/pubmed/32419446
http://dx.doi.org/10.1021/acsnano.0c00870
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author Portone, Alberto
Borrego-Varillas, Rocio
Ganzer, Lucia
Di Corato, Riccardo
Qualtieri, Antonio
Persano, Luana
Camposeo, Andrea
Cerullo, Giulio
Pisignano, Dario
author_facet Portone, Alberto
Borrego-Varillas, Rocio
Ganzer, Lucia
Di Corato, Riccardo
Qualtieri, Antonio
Persano, Luana
Camposeo, Andrea
Cerullo, Giulio
Pisignano, Dario
author_sort Portone, Alberto
collection PubMed
description [Image: see text] The miniaturization of diagnostic devices that exploit optical detection schemes requires the design of light sources combining small size, high performance for effective excitation of chromophores, and mechanical flexibility for easy coupling to components with complex and nonplanar shapes. Here, ZnO nanowire-in-fiber hybrids with internal architectural order are introduced, exhibiting a combination of polarized stimulated emission, low propagation losses of light modes, and structural flexibility. Ultrafast transient absorption experiments on the electrospun material show optical gain which gives rise to amplified spontaneous emission with a threshold lower than the value found in films. These systems are highly flexible and can conveniently conform to curved surfaces, which makes them appealing active elements for various device platforms, such as bendable lasers, optical networks, and sensors, as well as for application in bioimaging, photo-cross-linking, and optogenetics.
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spelling pubmed-73936282020-07-31 Conformable Nanowire-in-Nanofiber Hybrids for Low-Threshold Optical Gain in the Ultraviolet Portone, Alberto Borrego-Varillas, Rocio Ganzer, Lucia Di Corato, Riccardo Qualtieri, Antonio Persano, Luana Camposeo, Andrea Cerullo, Giulio Pisignano, Dario ACS Nano [Image: see text] The miniaturization of diagnostic devices that exploit optical detection schemes requires the design of light sources combining small size, high performance for effective excitation of chromophores, and mechanical flexibility for easy coupling to components with complex and nonplanar shapes. Here, ZnO nanowire-in-fiber hybrids with internal architectural order are introduced, exhibiting a combination of polarized stimulated emission, low propagation losses of light modes, and structural flexibility. Ultrafast transient absorption experiments on the electrospun material show optical gain which gives rise to amplified spontaneous emission with a threshold lower than the value found in films. These systems are highly flexible and can conveniently conform to curved surfaces, which makes them appealing active elements for various device platforms, such as bendable lasers, optical networks, and sensors, as well as for application in bioimaging, photo-cross-linking, and optogenetics. American Chemical Society 2020-05-18 2020-07-28 /pmc/articles/PMC7393628/ /pubmed/32419446 http://dx.doi.org/10.1021/acsnano.0c00870 Text en Copyright © 2020 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
spellingShingle Portone, Alberto
Borrego-Varillas, Rocio
Ganzer, Lucia
Di Corato, Riccardo
Qualtieri, Antonio
Persano, Luana
Camposeo, Andrea
Cerullo, Giulio
Pisignano, Dario
Conformable Nanowire-in-Nanofiber Hybrids for Low-Threshold Optical Gain in the Ultraviolet
title Conformable Nanowire-in-Nanofiber Hybrids for Low-Threshold Optical Gain in the Ultraviolet
title_full Conformable Nanowire-in-Nanofiber Hybrids for Low-Threshold Optical Gain in the Ultraviolet
title_fullStr Conformable Nanowire-in-Nanofiber Hybrids for Low-Threshold Optical Gain in the Ultraviolet
title_full_unstemmed Conformable Nanowire-in-Nanofiber Hybrids for Low-Threshold Optical Gain in the Ultraviolet
title_short Conformable Nanowire-in-Nanofiber Hybrids for Low-Threshold Optical Gain in the Ultraviolet
title_sort conformable nanowire-in-nanofiber hybrids for low-threshold optical gain in the ultraviolet
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7393628/
https://www.ncbi.nlm.nih.gov/pubmed/32419446
http://dx.doi.org/10.1021/acsnano.0c00870
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