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This communication reports the increase in fluorescence resonance energy transfer (FRET) efficiency between two laser dyes in presence of Deoxyribonucleic acid (DNA). Two types of molecular logic gates have been designed where DNA acts as…

Biological Physics · Physics 2014-08-29 D. Bhattacharjee , Dibyendu Dey , S. Chakraborty , Syed Arshad Hussain

Few inventions have shaped the world like the incandescent bulb. While Edison used thermal radiation from ohmically heated conductors, some noble metals exhibit "cold" electroluminescence (EL) in percolation films, tunnel diodes,…

Single-molecule approaches to biology offer a powerful new vision to elucidate the mechanisms that underpin the functioning of living cells. However, conventional optical single molecule spectroscopy techniques such as F\"orster…

Interfacial adhesion is caused by intermolecular forces that only occur between surfaces at nano-scale contact (NSC) i.e., 0.1-0.4nm. To evaluate NSC and its influence on adhesion, F\"orster resonance energy transfer (FRET) spectroscopy has…

Materials Science · Physics 2023-01-27 Mónica Gaspar Simões , Robert Schennach , Ulrich Hirn

Flow sensors have diverse applications in the field of biomedical engineering and also in industries. Micromachining of flow sensors has accomplished a new goal when it comes to miniaturization. Due to the scaling in dimensions, power…

Instrumentation and Detectors · Physics 2016-08-15 Baseerat Khan , Suhaib Ahmed , Vipan Kakkar

We report the enhanced optical transmission in the coherent, off-resonant excitation of Rydberg atom gases at room temperature via a two-photon process. Here thermal resonance-enhanced transparency (TRET) is induced when the detuning of the…

Thermal transport in nanostructures plays a critical role in modern technologies. As devices shrink, techniques that can measure thermal properties at nanometer and nanosecond scales are increasingly needed to capture transient,…

Resonant energy transfer mechanisms have been observed in the sensitized luminescence of solids, in quantum dots and in molecular nanostructures, and they also play a central role in light harvesting processes in photosynthetic organisms.…

Quantum Physics · Physics 2009-11-07 Brendon Lovett , John H. Reina , Ahsan Nazir , Beeneet Kothari , Andrew Briggs

We report on the observation of a change in the bend angle of an RNA kissing complex upon Rop binding using single-molecular-pair FRET. The angular relationship between the dyes, rather than the distance between them, is shown to be…

Biological Physics · Physics 2017-08-23 Sheema Rahmanseresht , Peker Milas , Ben D. Gamari , Lori S. Goldner

Over the past 15 years there has been an ongoing debate regarding the influence of the photonic environment on Forster resonance energy transfer (FRET). Disparate results corresponding to enhancement, suppression and null effect of the…

Optics · Physics 2018-08-15 Cristian L. Cortes , Zubin Jacob

Recent experiments have shown that highly efficient energy transfer can take place in organic nanocrystals at extremely low acceptor densities. This striking phenomenon has been ascribed to the formation of exciton polaritons thanks to the…

Chemical Physics · Physics 2021-01-12 R. Sáez-Blázquez , J. Feist , F. J. García-Vidal , A. I. Fernández-Domínguez

In the quest for dynamic multimodal probing of a material's structure and functionality, it is critical to be able to quantify the chemical state on the atomic and nanoscale using element specific electronic and structurally sensitive tools…

We investigate the resonance energy transfer (RET) rate between two quantum emitters near a suspended graphene sheet in vacuum under the influence of an external magnetic field. We perform the analysis for low and room temperatures and show…

Mesoscale and Nanoscale Physics · Physics 2021-05-26 P. P. Abrantes , G. Bastos , D. Szilard , C. Farina , F. S. S. Rosa

Biosensors are frequently used nowadays for the sake of their attractive capabilities. Because of their high accuracy and precision, they are more and more used in the medical sector. Natural receptors are mostly used, but their use have…

Cell Behavior · Quantitative Biology 2021-02-17 Juul Goossens , Gilles Oudebrouckx , Seppe Bormans , Thijs Vandenryt , Ronald Thoelen

Fluorescence studies of natural photosynthetic complexes on a graphene layer demonstrate pronounced influence of the excitation wavelength on the energy transfer efficiency to graphene. Ultraviolet light yields much faster decay of…

Mesoscale and Nanoscale Physics · Physics 2015-07-13 Sebastian Mackowski , Izabela Kamińska

Graphene field effect transistors (G-FETs) have appeared as suitable candidates for sensing charges and have thus attracted large interest for ion and chemical detections. In particular, their high sensitivity, chemical robustness,…

Mesoscale and Nanoscale Physics · Physics 2024-02-08 Océane Terral , Guillaume Audic , Arnaud Claudel , Justine Magnat , Aurélie Dupont , Christophe J. Moreau , Cécile Delacour

Both spontaneous emission and resonant energy transfer can be enhanced significantly when the emitter is placed in the vicinity of metallic or crystal structures. This enhancement can be described using the electromagnetic Green tensor and…

Optics · Physics 2022-07-27 Asaf Farhi , Aristide Dogariu

Nanoparticle-based fluorescent sensors have emerged as a competitive alternative to small molecule sensors, due to their excellent fluorescence-based sensing capabilities. The tailorability of design, architecture, and photophysical…

Applied Physics · Physics 2020-05-19 Anil Chandra , Saumya Prasad , Giuseppe Gigli , Loretta L. del Mercato

Although near-field radiative heat transfer was introduced in the 1950's, interest in the field has recently revived, as the effect promises improved performance in various applications where contactless temperature regulation in the…

Optics · Physics 2023-03-22 Mariano Pascale , Maxime Giteau , Georgia T. Papadakis

After nearly a century of specialized applications in optics, remote sensing, and acoustics, the near-field (NF) electromagnetic propagation zone is experiencing a resurgence in research interest. This renewed attention is fueled by the…

Signal Processing · Electrical Eng. & Systems 2025-01-07 Ahmet M. Elbir , Özlem Tuğfe Demir , Kumar Vijay Mishra , Symeon Chatzinotas , Martin Haardt