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Observation of magneto-electric rectification at non-relativistic intensities.

ABSTRACT: The subject of electromagnetism has often been called electrodynamics to emphasize the dominance of the electric field in dynamic light-matter interactions that take place under non-relativistic conditions. Here we show experimentally that the often neglected optical magnetic field can nevertheless play an important role in a class of optical nonlinearities driven by both the electric and magnetic components of light at modest (non-relativistic) intensities. We specifically report the observation of magneto-electric rectification, a previously unexplored nonlinearity at the molecular level which has important potential for energy conversion, ultrafast switching, nano-photonics, and nonlinear optics. Our experiments were carried out in nanocrystalline pentacene thin films possessing spatial inversion symmetry that prohibited second-order, all-electric nonlinearities but allowed magneto-electric rectification.

SUBMITTER: Trinh MT

PROVIDER: S-EPMC7576171 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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Observation of magneto-electric rectification at non-relativistic intensities.

Trinh M Tuan MT Smail Gregory G Makhal Krishnandu K Yang Da Seul DS Kim Jinsang J Rand Stephen C SC

Nature communications 20201020 1

The subject of electromagnetism has often been called electrodynamics to emphasize the dominance of the electric field in dynamic light-matter interactions that take place under non-relativistic conditions. Here we show experimentally that the often neglected optical magnetic field can nevertheless play an important role in a class of optical nonlinearities driven by both the electric and magnetic components of light at modest (non-relativistic) intensities. We specifically report the observatio ...[more]

PMID: 33082355

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