Purcell-Enhanced Spontaneous Emission of Molecular Vibrations.

08:00 EDT 11th October 2019 | BioPortfolio

Summary of "Purcell-Enhanced Spontaneous Emission of Molecular Vibrations."

Infrared (IR) spectroscopy of molecular vibrations provides insight into molecular structure, coupling, and dynamics. However, picosecond scale intermolecular and intramolecular many-body interactions, nonradiative relaxation, absorption, and thermalization typically dominate over IR spontaneous emission. We demonstrate how coupling to a resonant IR antenna can enhance spontaneous emission of molecular vibrations. Using time-domain nanoprobe spectroscopy we observe an up to 50% decrease in vibrational dephasing time T_{2,vib}, based on the coupling-induced population decay with T_{κ}≃550  fs and an associated Purcell factor of >10^{6}. This rate enhancement of the spontaneous emission of antenna-coupled molecular vibrations opens new avenues for IR coherent control, quantum information processing, and quantum chemistry.


Journal Details

This article was published in the following journal.

Name: Physical review letters
ISSN: 1079-7114
Pages: 153001


DeepDyve research library

PubMed Articles [15785 Associated PubMed Articles listed on BioPortfolio]

Suppressed Spontaneous Emission for Coherent Momentum Transfer.

Strong optical forces with minimal spontaneous emission are desired for molecular deceleration and atom interferometry applications. We report experimental benchmarking of such a stimulated optical fo...

Emission behaviors of colloidal quantum dots linked onto synthesized metal nanoparticles.

With two different residual surfactants, four different metal nanoparticles (NPs), including two Au NPs and two Ag NPs are synthesized for linking with red-emitting CdZnSeS/ZnS colloidal quantum dots ...

Observing the Quantum Wave Nature of Free Electrons through Spontaneous Emission.

We investigate, both experimentally and theoretically, the interpretation of the free-electron wave function using spontaneous emission. We use a transversely wide single-electron wave function to des...

Control of the Exciton Radiative Lifetime in van der Waals Heterostructures.

Optical properties of atomically thin transition metal dichalcogenides are controlled by robust excitons characterized by a very large oscillator strengths. Encapsulation of monolayers such as MoSe_{2...

Carbon nanotube color centers in plasmonic nanocavities: A path to photon indistinguishability at telecom bands.

Indistinguishable single photon generation at telecom wavelengths from solid-state quantum emitters remains a significant challenge to scalable quantum information processing. Here we demonstrate effi...

Clinical Trials [5074 Associated Clinical Trials listed on BioPortfolio]

Molecular Associations With Reproductive Failure

The overall hypothesis to be tested is: women with the molecular phenotype of highly skewed X chromosome inactivation are at increased risk of spontaneous abortion.

Comparison of Positron Emission Mammography and Contrast-enhanced Breast MRI

The hypothesis of this study is that positron emission mammography will provide comparable sensitivity to contrast-enhanced breast MRI in women with a high suspicion of breast cancer. The...

A Feasibility Study Designed to Assess the Efficacy of the ActiLady Method in Adult Female Subjects With Dysmenorrhea

ActiLady refers to a novel method of employing targeted waves or vibrations, with the goal of reducing the pain associated with menstruation (clinically known as dysmenorrhea).

Piezoelectric Vibrations and Tissue, Cellular and Molecular Mechanisms of Oral Wound Healing in Patients With Diabetes Mellitus Types 1 and 2

Introduction: The aim of this clinical trial is to investigate and compare the effect of piezoelectric surgery on tissue, cellular and molecular level of oral surgical wound healing and ...

Contrast Enhanced Ultrasound and Molecular Analysis in the Diagnosis of Pancreatic Cyst

This study evaluates the use of contrast-enhanced harmonic endoscopic ultrasound (CH-EUS) and cyst fluid molecular analysis in the differential diagnosis of pancreatic cysts and the detect...

Medical and Biotech [MESH] Definitions

A circumstance where a substance or organism takes fire and burns without an exogenous source. Spontaneous human combustion differs from preternatural human combustibility in that in the latter, some spark or trivial flame sets the fire and the body tissues, which have a greatly enhanced inflammability, continue to undergo incineration without any external heat source or combustible materials. (Bergman NA. Spontaneous human combustion: its role in literature and science. Pharos 1988;Fall;51(4):18-21)

The spontaneous transformation of a nuclide into one or more different nuclides, accompanied by either the emission of particles from the nucleus, nuclear capture or ejection of orbital electrons, or fission. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

An imaging technique using compounds labelled with short-lived positron-emitting radionuclides (such as carbon-11, nitrogen-13, oxygen-15 and fluorine-18) to measure cell metabolism. It has been useful in study of soft tissues such as CANCER; CARDIOVASCULAR SYSTEM; and brain. SINGLE-PHOTON EMISSION-COMPUTED TOMOGRAPHY is closely related to positron emission tomography, but uses isotopes with longer half-lives and resolution is lower.

A spontaneous diminution or abatement of a disease over time, without formal treatment.

A bacterial protein from Pseudomonas, Bordetella, or Alcaligenes which operates as an electron transfer unit associated with the cytochrome chain. The protein has a molecular weight of approximately 16,000, contains a single copper atom, is intensively blue, and has a fluorescence emission band centered at 308nm.

Quick Search

DeepDyve research library

Searches Linking to this Article