scholarly journals Strong light-matter coupling for optical switching through the fluorescence and FRET control

2021 ◽  
Vol 2058 (1) ◽  
pp. 012001
Author(s):  
I Nabiev
Keyword(s):  
Energy Transfer ◽  
Strong Coupling ◽  
Optical Switching ◽  
Resonance Energy ◽  
Energy Shift ◽  
Role Reversal ◽  
Strong Light ◽  
Exciton Transition ◽  
Matter Coupling ◽  
Excitonic Transitions

Abstract Resonant interaction between excitonic transitions of molecules and localized electromagnetic field forms the hybrid polaritonic states. Tuneable microresonators may change the light-matter coupling strength and modulate them from weak to strong and ultra-strong coupling regimes. In this work we have realised strong coupling between the tuneable open-access cavity mode and the excitonic transitions in oligonucleotide-based molecular beacons with their terminus labelled with a pair of organic dye molecules demonstrating an efficient donor-to-acceptor Förster resonance energy transfer (FRET). We show that the predominant strong coupling of the cavity photon to the exciton transition in the donor dye molecule can lead to such a large an energy shift that the energy transfer from the acceptor exciton reservoir to the mainly donor lower polaritonic state can be achieved, thus yielding the chromophores’ donor–acceptor role reversal or “carnival effect”. The data show the possibility for confined electromagnetic fields to control and mediate polariton-assisted remote energy transfer. Obtained results open the avenues to quantum optical switching and other applications.

Room temperature Strong coupling in low finesse GaN microcavities

2005 ◽  
Vol 892 ◽  
Author(s):  
Ian Sellers ◽  
Fabrice Semond ◽  
Mathieu Leroux ◽  
Jean Massies ◽  
Pierre Disseix ◽  
...  
Keyword(s):  
Quality Factor ◽  
Strong Coupling ◽  
Transfer Matrix ◽  
Room Temperature ◽  
Experimental Results ◽  
Strong Light ◽  
Matter Coupling ◽  
Bulk Gan ◽  
Angle Dependent Reflectivity

AbstractWe present experimental results demonstrating strong-light matter coupling at low and room temperature in bulk GaN microcavities. Angle dependent reflectivity measurements demonstrate strong-coupling with a Rabi-energy of 50meV at room temperature which is well reproduced with transfer matrix simulations. The absence of strong coupling in the photoluminescence is attributed to the low finesse of the microcavity (Q=60) and is confirmed by simulations which indicate a quality factor of 90 is required to observe strong-coupling in the emission.

scholarly journals Mechanistic principles and applications of resonance energy transfer

2008 ◽  
Vol 86 (9) ◽  
pp. 855-870 ◽  
Author(s):  
David L Andrews
Keyword(s):  
Energy Transfer ◽  
Optical Switching ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Synthetic Analogue ◽  
Primary Mechanism ◽  
Synthetic Materials ◽  
Förster Energy Transfer ◽  
All Optical ◽  
All Optical Switching

Resonance energy transfer is the primary mechanism for the migration of electronic excitation in the condensed phase. Well-known in the particular context of molecular photochemistry, it is a phenomenon whose much wider prevalence in both natural and synthetic materials has only slowly been appreciated, and for which the fundamental theory and understanding have witnessed major advances in recent years. With the growing to maturity of a robust theoretical foundation, the latest developments have led to a more complete and thorough identification of key principles. The present review first describes the context and general features of energy transfer, then focusing on its electrodynamic, optical, and photophysical characteristics. The particular role the mechanism plays in photosynthetic materials and synthetic analogue polymers is then discussed, followed by a summary of its primarily biological structure determination applications. Lastly, several possible methods are described, by the means of which all-optical switching might be effected through the control and application of resonance energy transfer in suitably fabricated nanostructures.Key words: FRET, Förster energy transfer, photophysics, fluorescence, laser.

Fluorescence Measurements and AFM Imaging of Bacteriorhodopsin Coupled with CdSe Quantum Dots for Optoelectronic Applications

2009 ◽  
Vol 1237 ◽  
Author(s):  
Nicolas Bouchonville ◽  
Michael Molinari ◽  
Alyona Sukhanova ◽  
Michel Troyon ◽  
Igor Nabiev
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Data Storage ◽  
Electrostatic Interactions ◽  
Optical Switching ◽  
Dominant Role ◽  
Resonance Energy ◽  
Functional Materials ◽  
Surface Charges ◽  
Fluorescence Measurements

AbstractA new nanohybrid material with a potential impact on energy transfer processes in biomolecules was developed by coupling colloidal fluorescent semiconductor CdSe/ZnS quantum dots (QDs) with a photochromic membrane protein, the bacteriorhodopsin (bR). The interactions between the nanocrystals and the proteins were studied by fluorescence spectroscopy and atomic force microscopy (AFM) measurements. A quenching in the photoluminescence (PL) of QDs emitting in the range of the bR absorption suggests a fluorescence resonance energy transfer effect from QDs (donors) to bR (acceptor). As the quenching evolution is different with the surface charges of the QDs, it suggests that the QDs interact with bR through electrostatic interactions. The AFM images of bR coupled with QDs capped with positive or negative surface groups confirm that the electrostatic interactions between QDs and bR play a dominant role in the way they are coupling together. The observed interactions between QDs and bR can provide the basis for the development of novel functional materials with unique photonic properties and having applications in the all-optical switching, photovoltaics and data storage.

Single and dual beam optical switching of resonance energy transfer

2007 ◽  
Vol 127 (17) ◽  
pp. 174702 ◽  
Author(s):  
David L. Andrews ◽  
Richard G. Crisp ◽  
Shaopeng Li
Keyword(s):  
Energy Transfer ◽  
Optical Switching ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Dual Beam

scholarly journals Scouting for strong light–matter coupling signatures in Raman spectra

2021 ◽  
Author(s):  
Wassie Mersha Takele ◽  
Lukasz Piatkowski ◽  
Frank Wackenhut ◽  
Sylwester Gawinkowski ◽  
Alfred J. Meixner ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Raman Spectra ◽  
Coupling Effect ◽  
Enhancement Effect ◽  
Strong Light ◽  
Surface Enhancement ◽  
Matter Coupling ◽  
Surface Enhancement Effect

Changes in the Raman spectra under vibrational strong coupling do not necessarily result from the coupling effect but rather they can be caused by the surface enhancement effect.

scholarly journals Strong light-matter coupling in quantum chemistry and quantum photonics

Nanophotonics ◽  
2018 ◽  
Vol 7 (9) ◽  
pp. 1479-1501 ◽  
Author(s):  
Johannes Flick ◽  
Nicholas Rivera ◽  
Prineha Narang
Keyword(s):  
Quantum Chemistry ◽  
Strong Coupling ◽  
Quantum Electrodynamics ◽  
Density Functional ◽  
Single Photon ◽  
Atomic Scale ◽  
Strong Light ◽  
Matter Coupling ◽  
Theoretical Approaches ◽  
Quantum Photonics

AbstractIn this article, we review strong light-matter coupling at the interface of materials science, quantum chemistry, and quantum photonics. The control of light and heat at thermodynamic limits enables exciting new opportunities for the rapidly converging fields of polaritonic chemistry and quantum optics at the atomic scale from a theoretical and computational perspective. Our review follows remarkable experimental demonstrations that now routinely achieve the strong coupling limit of light and matter. In polaritonic chemistry, many molecules couple collectively to a single-photon mode, whereas, in the field of nanoplasmonics, strong coupling can be achieved at the single-molecule limit. Theoretical approaches to address these experiments, however, are more recent and come from a spectrum of fields merging new developments in quantum chemistry and quantum electrodynamics alike. We review these latest developments and highlight the common features between these two different limits, maintaining a focus on the theoretical tools used to analyze these two classes of systems. Finally, we present a new perspective on the need for and steps toward merging, formally and computationally, two of the most prominent and Nobel Prize-winning theories in physics and chemistry: quantum electrodynamics and electronic structure (density functional) theory. We present a case for how a fully quantum description of light and matter that treats electrons, photons, and phonons on the same quantized footing will unravel new quantum effects in cavity-controlled chemical dynamics, optomechanics, nanophotonics, and the many other fields that use electrons, photons, and phonons.

Quantum Dot Bioconjugates as Energy Donors in Fluorescence Resonance Energy Transfer Assays

2003 ◽  
Vol 773 ◽  
Author(s):  
Aaron R. Clapp ◽  
Igor L. Medintz ◽  
J. Matthew Mauro ◽  
Hedi Mattoussi
Keyword(s):  
Energy Transfer ◽  
Quantum Dot ◽  
Organic Dyes ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Genetically Engineered ◽  
Molar Ratio ◽  
Binding Assays ◽  
Specific Sequence ◽  
Donor Acceptor

AbstractLuminescent CdSe-ZnS core-shell quantum dot (QD) bioconjugates were used as energy donors in fluorescent resonance energy transfer (FRET) binding assays. The QDs were coated with saturating amounts of genetically engineered maltose binding protein (MBP) using a noncovalent immobilization process, and Cy3 organic dyes covalently attached at a specific sequence to MBP were used as energy acceptor molecules. Energy transfer efficiency was measured as a function of the MBP-Cy3/QD molar ratio for two different donor fluorescence emissions (different QD core sizes). Apparent donor-acceptor distances were determined from these FRET studies, and the measured distances are consistent with QD-protein conjugate dimensions previously determined from structural studies.

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