Plexcitonic strong coupling: unique features, applications, and challenges

Author(s):  
Qian Zhao ◽  
Wenjie Zhou ◽  
Yan-Hui Deng ◽  
Ya-Qin Zheng ◽  
Zhong-Hong Shi ◽  
...  

Abstract There are, recently, remarkable achievements in turning light-matter interactions into strong coupling quantum regime. In particular, room temperature plexcitonic strong coupling in plasmon-exciton hybrid systems can bring promising benefits for fundamental and applied physics. Herein we will review theoretical insights and recent experimental achievements in plexcitonic strong coupling and divide this review into two main parts. The first part will briefly introduce the general field of strong coupling, including its origin and history, physical mechanisms and theoretical models, as well as recent advanced applications of strong coupling, such as the quantum or biochemical devices enabled by optical strong coupling. The second part will zoom in and concentrate on plexcitonic strong coupling by introducing its unique features and new potentials (such as single-particle ultrastrong coupling, strong coupling dynamics in femtosecond scale) and discussing the limitations and challenges of plexcitonic strong coupling, which will also be accompanied by potential solutions such as the microcavity-engineered plexcitonics, spectral hold burning effects, and metamaterial-based strong coupling. Finally, we will summarize and conclude this review, highlighting the future research directions and promising applications.

Sensors ◽  
2021 ◽  
Vol 21 (16) ◽  
pp. 5502
Author(s):  
Miaoling Que ◽  
Chong Lin ◽  
Jiawei Sun ◽  
Lixiang Chen ◽  
Xiaohong Sun ◽  
...  

Developing various nanosensors with superior performance for accurate and sensitive detection of some physical signals is essential for advances in electronic systems. Zinc oxide (ZnO) is a unique semiconductor material with wide bandgap (3.37 eV) and high exciton binding energy (60 meV) at room temperature. ZnO nanostructures have been investigated extensively for possible use as high-performance sensors, due to their excellent optical, piezoelectric and electrochemical properties, as well as the large surface area. In this review, we primarily introduce the morphology and major synthetic methods of ZnO nanomaterials, with a brief discussion of the advantages and weaknesses of each method. Then, we mainly focus on the recent progress in ZnO nanosensors according to the functional classification, including pressure sensor, gas sensor, photoelectric sensor, biosensor and temperature sensor. We provide a comprehensive analysis of the research status and constraints for the development of ZnO nanosensor in each category. Finally, the challenges and future research directions of nanosensors based on ZnO are prospected and summarized. It is of profound significance to research ZnO nanosensors in depth, which will promote the development of artificial intelligence, medical and health, as well as industrial, production.


2015 ◽  
Vol 2 (3) ◽  
pp. 329-348 ◽  
Author(s):  
Yugang Sun

Abstract Dimerization of different nanocomponents in single nanoparticles becomes interesting due to not only inheritance of properties of both components but also generation of new properties associated with strong coupling of the two components. As a class of emerging nanomaterials, interfaced heterogeneous nanodimers (IHNDs) are attracting more attentions in the field of materials research, in particular, nanoscience and nanotechnology. This review provides a timely and comprehensive overview on the general principles for the synthesis of IHNDs and typical examples of IHNDs made of various compositional combinations. The current challenges related to the synthesis and characterization of IHNDs are summarized at the end of the review and future research directions are also discussed.


2018 ◽  
Vol 373 (1754) ◽  
pp. 20170268 ◽  
Author(s):  
Rory C. O'Connor ◽  
Olivia J. Kirtley

Suicide is a major public health concern accounting for 800 000 deaths globally each year. Although there have been many advances in understanding suicide risk in recent decades, our ability to predict suicide is no better now than it was 50 years ago. There are many potential explanations for this lack of progress, but the absence, until recently, of comprehensive theoretical models that predict the emergence of suicidal ideation distinct from the transition between suicidal ideation and suicide attempts/suicide is key to this lack of progress. The current article presents the integrated motivational–volitional (IMV) model of suicidal behaviour, one such theoretical model. We propose that defeat and entrapment drive the emergence of suicidal ideation and that a group of factors, entitled volitional moderators (VMs), govern the transition from suicidal ideation to suicidal behaviour. According to the IMV model, VMs include access to the means of suicide, exposure to suicidal behaviour, capability for suicide (fearlessness about death and increased physical pain tolerance), planning, impulsivity, mental imagery and past suicidal behaviour. In this article, we describe the theoretical origins of the IMV model, the key premises underpinning the model, empirical tests of the model and future research directions. This article is part of the theme issue ‘Evolutionary thanatology: impacts of the dead on the living in humans and other animals'.


2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Sundas Bahar Yaqoob ◽  
Showkat Ahmad Bhawani ◽  
Rokhsana Mohammed Ismail Abdulrahman

Microbial fuel cells (MFCs) are a sustainable approach for the remediation of metals and the simultaneous production of energy. This paper highlighted the usage of mango extract to produce electricity as an organic source for bacteria and reduce metal ions from wastewater. The observed results were 51 mV in 15 days with 500 Ω of external resistance. The whole operation was carried out at room temperature. The observed current and power density were 28.947 mA/m2 and 0.972 mW/m2, respectively. The internal resistance was 150 Ω, which is lower than external resistance. The remediation performance varied with the metal ions as follows: Pb (II) shows 75%, Cd (II) shows 74.11%, and Cr (III) shows 80.50%. Finally, the detailed working mechanism of the present study, MFC challenges, and future research directions are covered in this paper.


2021 ◽  
pp. 026666692110082
Author(s):  
Maria Ijaz Baig ◽  
Liyana Shuib ◽  
Elaheh Yadegaridehkordi

In recent years, e-learning has become pivotal in higher education sectors. Researchers are correlating novel approaches with e-learning to facilitate education. However, despite the increase in e-learning research, there is still a lack of comprehensive literature analysis of e-learning in the higher education sector. Thus, this study aims to conduct a systematic literature review of the literature on e-learning in higher education. This study classifies the selected studies according to the focus of the study, utilizes a theoretical model and framework, and research methods. Also, it presents limitations and future research directions of e-learning in the higher education sector. A systematic approach is conducted, and a total of 47 relevant articles published between the year 2011 and 2019 were selected based on the inclusion and exclusion criteria. The findings on selected studies focus on the adoption, acceptance, readiness, and user insight, as well as e-learning expansion and challenges in the higher education sector. This study also classified theoretical models and frameworks based on their usage in the pre-adoption, adoption, and post-adoption stages. The findings revealed that most of the theoretical models and frameworks were used at the post-adoption stage. Nevertheless, this study revealed that most of the current studies in this domain were conducted using a quantitative research approach. Finally, this study highlighted limitations and presented possible future research directions as a guide for further enhancement in e-learning and higher education studies.


2021 ◽  
Vol 15 ◽  
pp. 183449092110370
Author(s):  
Nigela Ahemaitijiang ◽  
Huiting Fang ◽  
Yaxuan Ren ◽  
Zhuo Rachel Han ◽  
Nirbhay N. Singh

The benefits of mindfulness are widely recognized, and it has received increasing research attention. Recently, researchers have extended the concept and practice of mindfulness to the parent–child relationship and proposed the construct of mindful parenting, that is, parenting with mindfulness. However, mindful parenting is a relatively new concept in the field of family studies, and the contents, psychometrically robust measures, outcomes, and cultivation methods of mindful parenting warrant in-depth exploration. This article presents a systematic review of mindful parenting. We first conceptualized mindful parenting by consolidating the existence of this construct. Then, we summarized various measurements to assess this construct, and reviewed theoretical models and empirical research on the roles of mindful parenting. We also illustrated the ways to enhance mindful parenting and provided current evidence regarding these methods. Further, we discussed the limitations in this field and proposed future research directions.


2019 ◽  
Vol 16 (3) ◽  
pp. 172-196 ◽  
Author(s):  
Ali Pala ◽  
Jun Zhuang

In this survey, we review the cybersecurity information-sharing literature, categorizing the identified papers based on their main focus and methodological approaches implemented to the cybersecurity information-sharing problem. We constitute our research framework on the major considerations of firms, governments, citizens, and adversaries. This includes actors involved, types of information to be shared, current legal baseline, information-sharing organizations/policies/architectures, benefits of sharing, and concerns/costs/barriers of sharing. We observe that both qualitative and quantitative approaches are implemented in the literature. In general, quantitative approaches have been dedicated to discuss the challenges and barriers of public/private collaboration in information sharing, such as privacy and liability, and to propose secure and effective sharing mechanisms. On the other hand, quantitative approaches have been more interested in developing models that balance cybersecurity investment and information sharing as well as provide effective incentive mechanisms. This review summarizes the academic efforts in cybersecurity information sharing by analyzing 82 identified papers with their methodological approaches. The papers using game-theoretical models are dominant in the literature as we spend more time summarizing those efforts. We conclude the review by providing potential research gaps and future research directions.


2021 ◽  
Vol 11 (1) ◽  
pp. 22
Author(s):  
Michail Kalogiannakis ◽  
Stamatios Papadakis ◽  
Alkinoos-Ioannis Zourmpakis

The implementation of gamification in education has attracted many researchers to increase engagement and achieve learning more effectively. Implementing technology in science curricula has seen a massive influx over the past years to stop the decline in students’ motivation towards science learning and promote scientific thinking. This study’s objective is to present the empirical findings of the state-of-the-art literature on the use of gamification in science education. Therefore, we performed a systematic literature review of 24 empirical research papers published in various electronic databases and the web search engine for scholarly literature and academic resources, Google Scholar, between 2012 and 2020. This review reveals the latest emerging trends of gamification in science education while revealing the literature gap, challenges, impediments, and extending the possibilities for future research directions. It examines the conflicting findings of other studies and provides a framework and insight for future researchers regarding content areas, educational levels, theoretical models, outcomes, methodologies, game elements, and assessment tools.


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