16 papers · ranked by Valyu relevance
Xavier Zambrana‐Puyalto, Nicolas Bonod
We present a modal approach to compute the Purcell factor in Mie resonators exhibiting both electric and magnetic resonances. The analytic expressions of the normal modes are used to calculate the effective volumes. We show that important features of the effective volume can be predicted thanks to the…
Alina Karabchevsky, Andrey Novitsky, Fyodor Morozko
This chapter overviews the principles of the spontaneous emission rate increase, that is the Purcell effect, in relation to the photonic parity-time (PT) symmetry. Being focused on the system of coupled PT-symmetric optical waveguides, we consider behaviors of the Purcell factor in PT-symmetric and broken-PT-symmetric…
Alexander E. Krasnok, Alexey P. Slobozhanyuk, Constantin R. Simovski, Sergei A. Tretyakov + 4 more
'Sergei A. Tretyakov' 'Alexander N. Poddubny' 'Andrey E. Miroshnichenko' 'Yuri S. Kivshar' 'Pavel A. Belov'] The Purcell effect is defined as a modification of the spontaneous emission rate of a quantum emitter at the presence of a resonant cavity. However, a change of the emission rate of an emitter caused by an…
Alex Krasnok, Alexey Slobozhanyuk, Constantin Simovski, Sergei Tretyakov + 4 more
'Sergei Tretyakov' 'Alexander N. Poddubny' 'Andrey E. Miroshnichenko' 'Yuri S. Kivshar' 'Pavel A. Belov'] The Purcell effect – the modification of the spontaneous emission rate in presence of resonant cavities or other resonant objects – is a fundamental effect of quantum electrodynamics. However, a change of the…
Mikhail V. Rybin, Sergei F. Mingaleev, Mikhail F. Limonov, Yuri S. Kivshar
'Yuri S. Kivshar'] The Purcell effect and Lamb shift are two well-known physical phenomena which are usually discussed in the context of quantum electrodynamics, with the zero-point vibrations as a driving force of those effects in the quantum approach. Here we discuss the classical counterparts of these quantum…
Alexander N. Poddubny, Pavel A. Belov, Pavel Ginzburg, Anatoly V. Zayats + 1 more
'Anatoly V. Zayats' 'Yuri S. Kivshar'] We study theoretically a dramatic enhancement of spontaneous emission in metamaterials with the hyperbolic dispersion modeled as a cubic lattice of anisotropic resonant dipoles. We analyze the dependence of the Purcell factor on the source position in the lattice unit cell and…
Konstantin A. Ivanov, Konstantin M. Morozov, Galia Pozina, Azat R. Gubaydullin + 2 more
'Azat R. Gubaydullin' 'Elizaveta I. Girshova' 'Mikhail A. Kaliteevski'] The use of metamaterial as a way to mitigate the negative effects of absorption in metals on the Purcell effect in metal-dielectric structures is investigated. A layered metal-dielectric structure is considered as an anisotropic medium in the…
Mikołaj K. Schmidt, L. G. Helt, Christopher G. Poulton, M. J. Steel
In this work, we introduce an elastic analog of the Purcell effect and show theoretically that spherical nanoparticles can serve as tunable and robust antennas for modifying the emission from localized elastic sources. This effect can be qualitatively described by introducing elastic counterparts of the familiar…
Becca VanDrunen, Juanjuan Ren, Sebastian Franke, Stephen Hughes
Using a rigorous mode theory for gain-compensated plasmonic dimers, we demonstrate how quality factors and Purcell factors can be dramatically increased, improving the quality factors from 10 to over 26,000 and the peak Purcell factors from around 3000 to over 10 billion. Full three-dimensional calculations are…
Sanaa Al-Sumaidae
High-quality factor Q and elliptical cross-section microcavity of small size are described. We present a numerical investigation of the performance of the elliptical microcavity. We design elliptical microcavities to control the emission rate of dipolar emitters and investigate how the ellipticity factor influences the…
Sophie Ketter, Marina Dajka, Olga Rogozhnikova, Sergey A. Dobrynin + 3 more
Spectroscopic investigation of membrane proteins in their native environment is a challenging task. Earlier we demonstrated the feasibility to measure precise distances within outer membrane proteins in E. coli and native membranes using methanethiosulfonate (MTS) functionalized labels combined with pulsed electron…
Saulius Butenas
Tissue factor (TF) is an integral membrane protein that is essential to life. It is a component of the factor VIIa-TF complex enzyme and plays a primary role in both normal hemostasis and thrombosis. With a vascular injury, TF becomes exposed to blood and binds plasma factor VIIa, and the resulting complex initiates a…
Darshan Chalise, Carlos Juarez-Yescaz, Beniamin Zahiri, Paul Braun + 1 more
Inorganic solid-state battery electrolytes show high ionic conductivities and enable the fabrication of all solid-state batteries. In this work, we present the temperature dependence of spin-lattice relaxation time (T1), spin-spin relaxation time (T2), and resonance linewidth () of the 7Li nuclear magnetic resonance…
Ju Hun Yeon, Nima Mazinani, Travis S. Schlappi, Karen Y. T. Chan + 8 more
'James R. Baylis' 'Stephanie A. Smith' 'Alexander J. Donovan' 'Damien Kudela' 'Galen D. Stucky' 'Ying Liu' 'James H. Morrissey' 'Christian J. Kastrup'] Short-chain polyphosphate (polyP) is released from platelets upon platelet activation, but it is not clear if it contributes to thrombosis. PolyP has increased…
Sradha Ramesh Bhatt, Alexander G. Ginsberg, Stephanie A. Smith, James H. Morrissey + 1 more
Activated platelets release polyphosphate (polyP), a linear polymer of inorganic phosphate residues, from dense granules. Experiments performed under no-flow conditions show that polyP alters the kinetics of tissue factor (TF) pathway reactions, accelerating FXI activation by thrombin and FV activation by FXa and…
Dougald M. Monroe, Christine Baird, Julie A. Peterson, Alan E. Mast + 6 more
Bleeding patterns in people with hemophilia A cannot be predicted solely by factor VIII (FVIII) levels. Some of the variance in bleeding may be attributed to differences in plasma protein composition, and specifically other coagulation factors where the normal ranges span 50-150% of the population mean. We recently…