The University of Southampton
University of Southampton Institutional Repository

Self-organized periodic crystallization in unconventional glass created by an ultrafast laser for optical attenuation in the broadband near-infrared region

Self-organized periodic crystallization in unconventional glass created by an ultrafast laser for optical attenuation in the broadband near-infrared region
Self-organized periodic crystallization in unconventional glass created by an ultrafast laser for optical attenuation in the broadband near-infrared region
The construction of functional photonic structures in transparent solids for various applications, such as 3D displays, optical information processing, and tunable lasers, is of great scientific and technological importance. Here, self-assembled crystallite-based grating nanostructures are created in an unconventional multicomponent glass with an ultrafast laser. The novel nanogratings are organized as periodically assembled crystalline and amorphous phases, exhibiting strong polarization?dependent birefringence. The Ta2O5 component in the glass strongly contributes to the creation of nanogratings. Furthermore, a picosecond laser rather than a femtosecond laser is established to more suitably create nanogratings in the target glass, proving the critical role of thermal accumulation during nanoscale crystallization. Finally, nanogratings are demonstrated to be broadband variable near-infrared optical attenuators with a high attenuation ratio, indicating the potential application of nanogratings in optical information processing at communication wavelengths. These findings provide new directions for fabricating nanogratings in functional glasses for advanced integrated photonics and offer information for revealing the mechanism of nanograting formation. Novel self-organized nanograting structures with periodically assembled crystalline and amorphous phases are created in La2O3–Ta2O5–Nb2O5 glass by an ultrafast laser. Heat accumulation and the Ta2O5 content strongly contribute to the nanograting formation. The fabricated nanograting arrays exhibit a broadband polarization-dependent attenuation effect in the near-infrared region, which indicates the potential uses in the optical information processing at communication wavelengths.
2195-1071
Zhang, Bo
b70669d3-3c6d-4345-968d-cf2021892c16
Tan, Dezhi
7f040ecb-63f2-4f66-991a-b77a69756275
Liu, Xiaofeng
8680eea1-92c1-4e77-8de5-29bc0691b5d1
Tong, Limin
cef24833-b3c2-40f7-8c24-d64018fe9331
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Qiu, Jianrong
4cedd2e7-46ac-4fc9-b49c-e1b010b36fd0
Zhang, Bo
b70669d3-3c6d-4345-968d-cf2021892c16
Tan, Dezhi
7f040ecb-63f2-4f66-991a-b77a69756275
Liu, Xiaofeng
8680eea1-92c1-4e77-8de5-29bc0691b5d1
Tong, Limin
cef24833-b3c2-40f7-8c24-d64018fe9331
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Qiu, Jianrong
4cedd2e7-46ac-4fc9-b49c-e1b010b36fd0

Zhang, Bo, Tan, Dezhi, Liu, Xiaofeng, Tong, Limin, Kazansky, Peter G. and Qiu, Jianrong (2019) Self-organized periodic crystallization in unconventional glass created by an ultrafast laser for optical attenuation in the broadband near-infrared region. Advanced Optical Materials, 7 (20), [1900593]. (doi:10.1002/adom.201900593).

Record type: Article

Abstract

The construction of functional photonic structures in transparent solids for various applications, such as 3D displays, optical information processing, and tunable lasers, is of great scientific and technological importance. Here, self-assembled crystallite-based grating nanostructures are created in an unconventional multicomponent glass with an ultrafast laser. The novel nanogratings are organized as periodically assembled crystalline and amorphous phases, exhibiting strong polarization?dependent birefringence. The Ta2O5 component in the glass strongly contributes to the creation of nanogratings. Furthermore, a picosecond laser rather than a femtosecond laser is established to more suitably create nanogratings in the target glass, proving the critical role of thermal accumulation during nanoscale crystallization. Finally, nanogratings are demonstrated to be broadband variable near-infrared optical attenuators with a high attenuation ratio, indicating the potential application of nanogratings in optical information processing at communication wavelengths. These findings provide new directions for fabricating nanogratings in functional glasses for advanced integrated photonics and offer information for revealing the mechanism of nanograting formation. Novel self-organized nanograting structures with periodically assembled crystalline and amorphous phases are created in La2O3–Ta2O5–Nb2O5 glass by an ultrafast laser. Heat accumulation and the Ta2O5 content strongly contribute to the nanograting formation. The fabricated nanograting arrays exhibit a broadband polarization-dependent attenuation effect in the near-infrared region, which indicates the potential uses in the optical information processing at communication wavelengths.

Full text not available from this repository.

More information

e-pub ahead of print date: 1 August 2019
Published date: 21 October 2019

Identifiers

Local EPrints ID: 441955
URI: http://eprints.soton.ac.uk/id/eprint/441955
ISSN: 2195-1071
PURE UUID: b88ce2c8-772a-4f16-a733-11f9ca6b14ed

Catalogue record

Date deposited: 03 Jul 2020 16:30
Last modified: 14 Sep 2021 20:14

Export record

Altmetrics

Contributors

Author: Bo Zhang
Author: Dezhi Tan
Author: Xiaofeng Liu
Author: Limin Tong
Author: Jianrong Qiu

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×