Nanocavities for Molecular Optomechanics: their fundamental description and applications
- URL: http://arxiv.org/abs/2409.12537v2
- Date: Sat, 28 Sep 2024 16:09:57 GMT
- Title: Nanocavities for Molecular Optomechanics: their fundamental description and applications
- Authors: Philippe Roelli, Huatian Hu, Ewold Verhagen, Stephanie Reich, Christophe Galland,
- Abstract summary: This Perspective is to clarify the connection between the languages and parameters used in the fields of molecular cavity optomechanics.
We aim to make the theoretical framework of molecular cavity optomechanics practically usable for the SERS and nanoplasmonics community at large.
- Score: 0.0
- License: http://creativecommons.org/licenses/by-nc-nd/4.0/
- Abstract: Vibrational Raman scattering -- a process where light exchanges energy with a molecular vibration through inelastic scattering -- is most fundamentally described in a quantum framework where both light and vibration are quantized. When the Raman scatterer is embedded inside a plasmonic nanocavity, as in some sufficiently controlled implementations of surface-enhanced Raman scattering (SERS), the coupled system realizes an optomechanical cavity, where coherent and parametrically amplified light-vibration interaction becomes a resource for vibrational state engineering and nanoscale nonlinear optics. The purpose of this Perspective is to clarify the connection between the languages and parameters used in the fields of molecular cavity optomechanics (McOM) vs. its conventional, `macroscopic' counterpart, and to summarize the main results achieved so far in McOM and the most pressing experimental and theoretical challenges. We aim to make the theoretical framework of molecular cavity optomechanics practically usable for the SERS and nanoplasmonics community at large. While quality factors ($Q$'s) and mode volumes ($V$'s) essentially describe the performance of a nanocavity in enhancing light-matter interaction, we point to the light-cavity coupling efficiencies ($\eta$'s) and optomechanical cooperativities ($\mathcal{C}$'s) as the key parameters for molecular optomechanics. As an illustration of the significance of these quantities, we investigate the feasibility of observing optomechanically induced transparency with a molecular vibration -- a measurement that would allow for a direct estimate of the optomechanical cooperativity.
Related papers
- Unveiling the Dance of Molecules: Ro-Vibrational Dynamics of Molecules under Intense Illumination at Complex Plasmonic Interfaces [0.0]
The study investigates relaxation dynamics of an ensemble of molecules following intense resonant pump excitation in Fabry-Perot cavities and at three-dimensional plasmonic metasurfaces.
The simulations reveal dramatically modified relaxation pathways inside cavities compared to free space, characterized by persistent molecular alignment.
They also indicate the presence of a previously unreported relaxation stabilization mechanism driven by dephasing of the collective molecular-cavity mode.
arXiv Detail & Related papers (2024-12-03T22:17:35Z) - Dissipative Forces in Photon-Medium Interactions Using Perturbation Theory [0.0]
This study focuses on single Helium-4 atoms to study dissipative forces in photon-medium interactions.
Results have potential implications for advancing quantum information processing, nonlinear optics, and the study of dissipative mechanisms in quantum fluids.
arXiv Detail & Related papers (2024-11-26T21:40:00Z) - Enhanced optomechanical interaction in the unbalanced interferometer [40.96261204117952]
Quantum optomechanical systems enable the study of fundamental questions on quantum nature of massive objects.
Here we propose a modification of the Michelson-Sagnac interferometer, which allows to boost the optomechanical coupling strength.
arXiv Detail & Related papers (2023-05-11T14:24:34Z) - Optomechanical Effects in Nanocavity-enhanced Resonant Raman Scattering
of a Single Molecule [7.8701096149524865]
We address the optomechanical effects in surface-enhanced resonant Raman scattering (SERRS) from a single molecule in a nano-particle on mirror (NPoM) nanocavity.
We develop a quantum master equation theory, which combines macroscopic quantum electrodynamics and electron-vibration interaction within the framework of open quantum system theory.
We use electromagnetic simulations and time-dependent density functional theory calculations to study the SERRS of a methylene blue molecule in a realistic NPoM nanocavity.
arXiv Detail & Related papers (2022-10-06T02:12:07Z) - Giant optomechanical spring effect in plasmonic nano- and picocavities
probed by surface-enhanced Raman scattering [8.713553888457293]
Molecular vibrations couple to visible light only weakly, have small mutual interactions, and hence are often ignored for non-linear optics.
We show the extreme confinement provided by plasmonic nano- and pico-cavities can sufficiently enhance optomechanical coupling.
arXiv Detail & Related papers (2022-04-20T17:35:26Z) - Continuous-Wave Frequency Upconversion with a Molecular Optomechanical
Nanocavity [46.43254474406406]
We use molecular cavity optomechanics to demonstrate upconversion of sub-microwatt continuous-wave signals at $sim$32THz into the visible domain at ambient conditions.
The device consists in a plasmonic nanocavity hosting a small number of molecules. The incoming field resonantly drives a collective molecular vibration, which imprints an optomechanical modulation on a visible pump laser.
arXiv Detail & Related papers (2021-07-07T06:23:14Z) - Simulation of Condensed-Phase Spectroscopy with Near-term Digital
Quantum Computer [23.13347792805101]
We develop a workflow that combines multi-scale modeling and time-dependent variational quantum algorithm to compute the linear spectroscopy of systems.
We demonstrate the feasibility of our approach by numerically simulating the UV-Vis absorption spectra of organic semiconductors.
Our method can be directly used for other linear condensed-phase spectroscopy and could potentially be extended to nonlinear multi-dimensional spectroscopy.
arXiv Detail & Related papers (2021-06-20T22:30:22Z) - Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators.
We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure.
The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
arXiv Detail & Related papers (2021-05-27T18:00:02Z) - Molecular spin qudits for quantum simulation of light-matter
interactions [62.223544431366896]
We show that molecular spin qudits provide an ideal platform to simulate the quantum dynamics of photon fields strongly interacting with matter.
The basic unit of the proposed molecular quantum simulator can be realized by a simple dimer of a spin 1/2 and a spin $S$ transition metal ion, solely controlled by microwave pulses.
arXiv Detail & Related papers (2021-03-17T15:03:12Z) - Stationary Gaussian Entanglement between Levitated Nanoparticles [0.0]
Coherent scattering of photons is a novel mechanism of optomechanical coupling for optically levitated nanoparticles.
We show that it allows efficient deterministic generation of Gaussian entanglement between two particles in separate tweezers.
arXiv Detail & Related papers (2020-06-05T09:55:10Z) - Theoretical methods for ultrastrong light-matter interactions [91.3755431537592]
This article reviews theoretical methods developed to understand cavity quantum electrodynamics in the ultrastrong-coupling regime.
The article gives a broad overview of the recent progress, ranging from analytical estimate of ground-state properties to proper computation of master equations.
Most of the article is devoted to effective models, relevant for the various experimental platforms in which the ultrastrong coupling has been reached.
arXiv Detail & Related papers (2020-01-23T18:09:10Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.