Novel optofluidic concepts enabled by topological microfluidics-INVITED

The coupling between flow and director orientation of liquid crystals (LCs) has been long utilized to devise wide-ranging applications spanning modern displays, medical and environmental solutions, and bio-inspired designs and applications. LC-based optofluidic platforms offer a non-invasive handle...

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Autor principal:	Sengupta Anupam
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/0bf89931467243e89565a61650a6dc36
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spelling	oai:doaj.org-article:0bf89931467243e89565a61650a6dc362021-12-02T17:12:51ZNovel optofluidic concepts enabled by topological microfluidics-INVITED2100-014X10.1051/epjconf/202125510002https://doaj.org/article/0bf89931467243e89565a61650a6dc362021-01-01T00:00:00Zhttps://www.epj-conferences.org/articles/epjconf/pdf/2021/09/epjconf_eosam2021_10002.pdfhttps://doaj.org/toc/2100-014XThe coupling between flow and director orientation of liquid crystals (LCs) has been long utilized to devise wide-ranging applications spanning modern displays, medical and environmental solutions, and bio-inspired designs and applications. LC-based optofluidic platforms offer a non-invasive handle to modulate light and material fields, both locally and dynamically. The flow-driven reorientation of the LC molecules can tailor distinct optical and mechanical responses in microfluidic confinements, and harness the coupling therein. Yet the synergy between traditional optofluidics with isotropic fluids and LC microfluidics remains at its infancy. Here, we discuss emerging optofluidic concepts based on Topological Microfluidics, leveraging microfluidic control of topological defects and defect landscapes. With a specific focus on the role of surface anchoring and microfluidic geometry, we present recent and ongoing works that harness flow-controlled director and defect configurations to modulate optical fields. The flow-induced optical attributes, and the corresponding feedback, is enhanced in the vicinity of the topological defects which geenerate distinct isotropic opto-material properties within an anisotropic matrix. By harnessing the rich interplay of confining geometry, anchoring and micro-scale nematodynamics, topological microfluidics offers a promising platform to ideate the next generation of optofluidic and optomechnical concepts.Sengupta AnupamEDP SciencesarticlePhysicsQC1-999ENEPJ Web of Conferences, Vol 255, p 10002 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Sengupta Anupam Novel optofluidic concepts enabled by topological microfluidics-INVITED
description	The coupling between flow and director orientation of liquid crystals (LCs) has been long utilized to devise wide-ranging applications spanning modern displays, medical and environmental solutions, and bio-inspired designs and applications. LC-based optofluidic platforms offer a non-invasive handle to modulate light and material fields, both locally and dynamically. The flow-driven reorientation of the LC molecules can tailor distinct optical and mechanical responses in microfluidic confinements, and harness the coupling therein. Yet the synergy between traditional optofluidics with isotropic fluids and LC microfluidics remains at its infancy. Here, we discuss emerging optofluidic concepts based on Topological Microfluidics, leveraging microfluidic control of topological defects and defect landscapes. With a specific focus on the role of surface anchoring and microfluidic geometry, we present recent and ongoing works that harness flow-controlled director and defect configurations to modulate optical fields. The flow-induced optical attributes, and the corresponding feedback, is enhanced in the vicinity of the topological defects which geenerate distinct isotropic opto-material properties within an anisotropic matrix. By harnessing the rich interplay of confining geometry, anchoring and micro-scale nematodynamics, topological microfluidics offers a promising platform to ideate the next generation of optofluidic and optomechnical concepts.
format	article
author	Sengupta Anupam
author_facet	Sengupta Anupam
author_sort	Sengupta Anupam
title	Novel optofluidic concepts enabled by topological microfluidics-INVITED
title_short	Novel optofluidic concepts enabled by topological microfluidics-INVITED
title_full	Novel optofluidic concepts enabled by topological microfluidics-INVITED
title_fullStr	Novel optofluidic concepts enabled by topological microfluidics-INVITED
title_full_unstemmed	Novel optofluidic concepts enabled by topological microfluidics-INVITED
title_sort	novel optofluidic concepts enabled by topological microfluidics-invited
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/0bf89931467243e89565a61650a6dc36
work_keys_str_mv	AT senguptaanupam noveloptofluidicconceptsenabledbytopologicalmicrofluidicsinvited
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Novel optofluidic concepts enabled by topological microfluidics-INVITED

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