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Electro-optic modulators are utilized ubiquitously ranging from applications in data communication to photonic neural networks. While tremendous progress has been made over the years, efficient phase-shifting modulators are challenged with…

Applied Physics · Physics 2020-08-18 Rubab Amin , Rishi Maiti , Jacob B. Khurgin , Volker J. Sorger

Free electrons are unique tools to probe and manipulate nanoscale optical fields with emerging applications in ultrafast spectromicroscopy and quantum metrology. However, advances in this field are hindered by the small probability…

Organic solid-state lasers are reviewed, with a special emphasis on works published during the last decade. Referring originally to dyes in solid-state polymeric matrices, organic lasers also include the rich family of organic…

Optics · Physics 2011-11-28 Sébastien Chenais , Sebastien Forget

Colloidal quantum dots (QDs) are an attractive medium for nonlinear optics and deterministic heterogeneous integration with photonic devices. Their intrinsic nonlinearities can be strengthened further by coupling QDs to low mode-volume…

New blends of simply synthesized quasi two-dimensional (quasi-2D) hydrophobic perovskite semiconductors, employed in high performance light emitting diodes (LEDs) which function due to excitonic energy transfer effects, are reported. These…

Unbalanced charge injection is deleterious for the performance of colloidal quantum dot (CQD) light emitting diodes (LEDs) as it deteriorates the quantum efficiency (QE), brightness and operational lifetime. CQD LEDs emitting in the…

Superradiance occurs when a collection of atoms exhibits cooperative, spontaneous emission of photons at a rate that exceeds that of its component parts. Here, we reveal a similar phenomenon in a hydrodynamic system consisting of a pair of…

Quantum Physics · Physics 2023-02-10 Valeri Frumkin , Konstantinos Papatryfonos , John W. M. Bush

We propose an effective scheme for the generation of intense coherent extreme ultraviolet light beams carrying orbital angular momentum (OAM). The light is produced by a high-gain harmonic-generation free-electron laser (FEL), seeded using…

Optics · Physics 2013-12-23 Primož Rebernik Ribič , David Gauthier , Giovanni De Ninno

Since the first evidence of luminescence of organic polymers in STM junctions, efforts have been invested in elucidating how to leverage the voltage, anchoring chemistry, and molecular structure to optimize emission power and efficiency.…

Materials Science · Physics 2025-12-25 Facundo Tarasi , Esteban D. Gadea , Tchavdar Todorov , Damian A. Scherlis

We report a significant advancement in ultra low power light-by-light phase modulation using open semiconductor microcavities in the strong light-matter coupling regime. We achieve cross-phase modulation of up to 247$\pm$17 mrad per…

Organic semiconductors have generated considerable interest for their potential for creating inexpensive and flexible devices easily processed on a large scale [1-11]. However technological applications are currently limited by the low…

We study the optical emission from single semiconductor quantum dots coupled to the optical modes of photonic crystal nanocavities. For dots that are both spectrally and spatially coupled, auto-correlation measurements reveal efficient…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 M. Kaniber , A. Laucht , A. Neumann , J. M. Villas-Boas , M. Bichler , M. -C. Amann , J. J. Finley

Cooperative spontaneous recombination (superfluorescence) of electron-hole plasmas in semiconductors has been a challenge to observe due to ultrafast decoherence. We argue that superfluorescence can be achieved in quantum-confined…

Mesoscale and Nanoscale Physics · Physics 2009-07-28 Y. D. Jho , X. Wang , J. Kono , D. H. Reitze , A. A. Belyanin , V. V. Kocharovsky , Vl. V. Kocharovsky , G. S. Solomon

Microwave Kinetic Inductance Detectors, or MKIDs, have proven to be a powerful cryogenic detector technology due to their sensitivity and the ease with which they can be multiplexed into large arrays. A MKID is an energy sensor based on a…

Instrumentation and Methods for Astrophysics · Physics 2012-02-03 Benjamin A. Mazin , Bruce Bumble , Seth R. Meeker , Kieran O'Brien , Sean McHugh , Eric Langman

Optical parametric oscillation (OPO) is distinguished by its wavelength access, that is, the ability to flexibly generate coherent light at wavelengths that are dramatically different from the pump laser, and in principle bounded solely by…

The low efficiency of metal halide perovskite light-emitting diodes (PeLEDs) with blue emission block their potential applications in large-area full-color displays and solid-state lighting. A delicate control over the entire…

Applied Physics · Physics 2020-12-08 Hai-Yan Wu , Yang Shen , Yan-Qing Li , Kong-Chao Shen , Jian-Xin Tang

A microwave-optical photon converter with high efficiency ($>50$ %) and low added noise ($\ll 1$ photon) could enable the creation of scalable quantum networks where quantum information is distributed optically and processed in the…

Quantum Physics · Physics 2025-02-25 M Khalifa , P S Kirwin , Jeff F Young , J Salfi

Silicon-organic hybrid (SOH) electro-optic (EO) modulators combine small footprint with low operating voltage and hence low power dissipation, thus lending themselves to on-chip integration of large-scale device arrays. Here we demonstrate…

Optical oscillators present a powerful optimization mechanism. The inherent competition for the gain resources between possible modes of oscillation entails the prevalence of the most efficient single mode. We harness this 'ultrafast'…

Optics · Physics 2016-02-23 Avi Pe'er , Igal Aharonovich

We consider an optical quantum dot where an electron level and a hole level are coupled to respective superconducting leads. We find that electrons and holes recombine producing photons at discrete energies as well as a continuous tail.…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Patrik Recher , Yuli V. Nazarov , Leo P. Kouwenhoven