Holographic metasurface gas sensors for instantaneous visual alarms

There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

Abstract

Holographic metasurfaces can sense and alarm toxic gases, with integration onto flexible surfaces such as safety glasses.

Abstract

The rapid detection of biological and chemical substances in real time is particularly important for public health and environmental monitoring and in the military sector. If the process of substance detection to visual reporting can be implemented into a single miniaturized sensor, there could be a profound impact on practical applications. Here, we propose a compact sensor platform that integrates liquid crystals (LCs) and holographic metasurfaces to autonomously sense the existence of a volatile gas and provide an immediate visual holographic alarm. By combining the advantage of the rapid responses to gases realized by LCs with the compactness of holographic metasurfaces, we develop ultracompact gas sensors without additional complex instruments or machinery to report the visual information of gas detection. To prove the applicability of the compact sensors, we demonstrate a metasurface-integrated gas sensor on safety goggles via a one-step nanocasting process that is attachable to flat, curved, and flexible surfaces.

Related collections

Most cited references 59

Record: found
Abstract: found
Article: not found

Biosensing with plasmonic nanosensors.

Jeffrey N Anker, W. Hall, Olga Lyandres … (2008)

Recent developments have greatly improved the sensitivity of optical sensors based on metal nanoparticle arrays and single nanoparticles. We introduce the localized surface plasmon resonance (LSPR) sensor and describe how its exquisite sensitivity to size, shape and environment can be harnessed to detect molecular binding events and changes in molecular conformation. We then describe recent progress in three areas representing the most significant challenges: pushing sensitivity towards the single-molecule detection limit, combining LSPR with complementary molecular identification techniques such as surface-enhanced Raman spectroscopy, and practical development of sensors and instrumentation for routine use and high-throughput detection. This review highlights several exceptionally promising research directions and discusses how diverse applications of plasmonic nanoparticles can be integrated in the near future.

0 comments Cited 1292 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: not found

Infrared perfect absorber and its application as plasmonic sensor.

Na Liu, Martin Mesch, Thomas P. Weiss … (2010)

We experimentally demonstrate a perfect plasmonic absorber at lambda = 1.6 microm. Its polarization-independent absorbance is 99% at normal incidence and remains very high over a wide angular range of incidence around +/-80 degrees. We introduce a novel concept to utilize this perfect absorber as plasmonic sensor for refractive index sensing. This sensing strategy offers great potential to maintain the performance of localized surface plasmon sensors even in nonlaboratory environments due to its simple and robust measurement scheme.

0 comments Cited 626 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: not found
Article: not found

Large single-molecule fluorescence enhancements produced by a bowtie nanoantenna

Anika Kinkhabwala, Zongfu Yu, Shanhui Fan … (2009)

0 comments Cited 412 times – based on 0 reviews      Review now

Bookmark

All references

Author and article information

Journal

Journal ID (nlm-ta): Sci Adv

Journal ID (iso-abbrev): Sci Adv

Journal ID (publisher-id): SciAdv

Journal ID (hwp): advances

Title: Science Advances

Publisher: American Association for the Advancement of Science

ISSN (Electronic): 2375-2548

Publication date Collection: April 2021

Publication date (Electronic): 07 April 2021

Volume: 7

Issue: 15

Electronic Location Identifier: eabe9943

Affiliations

[1 ]Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.

[2 ]Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.

[3 ]Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea.

[4 ]Department of Electrical Engineering, Information Technology University of the Punjab, Lahore 54600, Pakistan.

[5 ]National Institute of Nanomaterials Technology (NINT), Pohang 37673, Republic of Korea.

Author notes

[* ]Corresponding author. Email: jsrho@ 123456postech.ac.kr (J.R.); ykkim@ 123456postech.ac.kr (Y.-K.K.)

[†]

These authors contributed equally to this work.

Author information

Inki Kim http://orcid.org/0000-0001-8686-6670

Won-Sik Kim http://orcid.org/0000-0002-0604-5969

Muhammad Qasim Mehmood http://orcid.org/0000-0002-2793-2137

Trevon Badloe http://orcid.org/0000-0001-9458-6062

Yeseul Kim http://orcid.org/0000-0001-7595-0164

Young-Ki Kim http://orcid.org/0000-0002-4420-3489

Junsuk Rho http://orcid.org/0000-0002-2179-2890

Article

Publisher ID: abe9943

DOI: 10.1126/sciadv.abe9943

PMC ID: 8026120

PubMed ID: 33827821

SO-VID: dbf62743-266b-4f19-a58d-7ba4667d568a

Copyright © Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

License:

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.

History

Date received : 28 September 2020

Date accepted : 22 February 2021