Ryan A. DeCrescent
YOU?
Author Swipe
View article: Coherent dynamics in an optical quantum dot with phonons and photons
Coherent dynamics in an optical quantum dot with phonons and photons Open
Genuine quantum-mechanical effects are readily observable in modern optomechanical systems comprising “classical” (bosonic) optical resonators. Unique features and advantages of optical two-level systems (qubits) for optomechanics, however…
View article: Gated InAs quantum dots embedded in surface acoustic wave cavities for low-noise optomechanics
Gated InAs quantum dots embedded in surface acoustic wave cavities for low-noise optomechanics Open
Self-assembled InAs quantum dots (QDs) are promising optomechanical elements due to their excellent photonic properties and sensitivity to local strain fields. Microwave-frequency modulation of photons scattered from these efficient quantu…
View article: Coherent Control of an Optical Quantum Dot Using Phonons and Photons
Coherent Control of an Optical Quantum Dot Using Phonons and Photons Open
Genuine quantum-mechanical effects are readily observable in modern optomechanical systems comprising bosonic ("classical") optical resonators. Here we describe unique features and advantages of optical two-level systems, or qubits, for op…
View article: Gated InAs quantum dots embedded in surface acoustic wave cavities for low-noise optomechanics
Gated InAs quantum dots embedded in surface acoustic wave cavities for low-noise optomechanics Open
Self-assembled InAs quantum dots (QDs) are promising optomechanical elements due to their excellent photonic properties and sensitivity to local strain fields. Microwave-frequency modulation of photons scattered from these efficient quantu…
View article: Monolithic polarizing circular dielectric gratings on bulk substrates for improved photon collection from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><mml:mrow><mml:mi>In</mml:mi><mml:mi>As</mml:mi></mml:mrow></mml:math> quantum dots
Monolithic polarizing circular dielectric gratings on bulk substrates for improved photon collection from quantum dots Open
III-V semiconductor quantum dots (QDs) are near-ideal and versatile single-photon sources. Because of the capacity for monolithic integration with photonic structures as well as optoelectronic and optomechanical systems, they are proving u…
View article: Monolithic Polarizing Circular Dielectric Gratings on Bulk Substrates for Improved Photon Collection from InAs Quantum Dots
Monolithic Polarizing Circular Dielectric Gratings on Bulk Substrates for Improved Photon Collection from InAs Quantum Dots Open
III-V semiconductor quantum dots (QDs) are near-ideal and versatile single-photon sources. Because of the capacity for monolithic integration with photonic structures as well as optoelectronic and optomechanical systems, they are proving u…
View article: Designing Highly Directional Luminescent Phased-Array Metasurfaces with Reciprocity-Based Simulations
Designing Highly Directional Luminescent Phased-Array Metasurfaces with Reciprocity-Based Simulations Open
Phased-array metasurfaces grant the ability to arbitrarily shape the wavefront of light. As such, they have been used as various optical elements including waveplates, lenses, and beam deflectors. Luminescent metasurfaces, on the other han…
View article: Enhancing and Extinguishing the Different Emission Features of 2D (EA<sub>1−</sub><i><sub>x</sub></i>FA<i><sub>x</sub></i>)<sub>4</sub>Pb<sub>3</sub>Br<sub>10</sub> Perovskite Films
Enhancing and Extinguishing the Different Emission Features of 2D (EA<sub>1−</sub><i><sub>x</sub></i>FA<i><sub>x</sub></i>)<sub>4</sub>Pb<sub>3</sub>Br<sub>10</sub> Perovskite Films Open
2D hybrid perovskites are attractive for optoelectronic devices. In thin films, the color of optical emission and the texture of crystalline domains are often difficult to control. Here, a method for extinguishing or enhancing different em…
View article: Large Single-Phonon Optomechanical Coupling between Quantum Dots and Tightly Confined Surface Acoustic Waves in the Quantum Regime
Large Single-Phonon Optomechanical Coupling between Quantum Dots and Tightly Confined Surface Acoustic Waves in the Quantum Regime Open
Surface acoustic waves (SAWs) coupled to quantum dots (QDs), trapped atoms and ions, and point defects have been proposed as quantum transduction platforms, yet the requisite coupling rates and cavity lifetimes have not been experimentally…
View article: Quantum phase modulation with acoustic cavities and quantum dots
Quantum phase modulation with acoustic cavities and quantum dots Open
Fast, efficient, and low-power modulation of light at microwave frequencies is crucial for chip-scale classical and quantum processing as well as for long-range networks of superconducting quantum processors. A successful approach to bridg…
View article: Quantum phase modulation with acoustic cavities and quantum dots
Quantum phase modulation with acoustic cavities and quantum dots Open
Fast, efficient, and low power modulation of light at microwave frequencies is crucial for chip-scale classical and quantum processing as well as for long-range networks of superconducting quantum processors. A successful approach to bridg…
View article: Optical-Frequency Magnetic Polarizability in a Layered Semiconductor
Optical-Frequency Magnetic Polarizability in a Layered Semiconductor Open
The optical response of crystals is most commonly attributed to electric dipole interactions between light and matter. Although metamaterials support "artificial" magnetic resonances supported by mesoscale structuring, there are no natural…
View article: Growth-Controlled Broad Emission in Phase-Pure Two-Dimensional Hybrid Perovskite Films
Growth-Controlled Broad Emission in Phase-Pure Two-Dimensional Hybrid Perovskite Films Open
Two-dimensional hybrid metal halide perovskites (2D perovskites) are attractive for light-emitting devices and other applications because their emission is tunable across the visible spectrum. The emission profile of 2D perovskites can be …
View article: Light-emitting metalenses and meta-axicons for focusing and beaming of spontaneous emission
Light-emitting metalenses and meta-axicons for focusing and beaming of spontaneous emission Open
Phased-array metasurfaces have been extensively used for wavefront shaping of coherent incident light. Due to the incoherent nature of spontaneous emission, the ability to similarly tailor photoluminescence remains largely unexplored. Rece…
View article: Ferroelastic Hysteresis in Thin Films of Methylammonium\nLead Iodide
Ferroelastic Hysteresis in Thin Films of Methylammonium\nLead Iodide Open
Mechanical strain can modify the structural and electronic properties\nof methylammonium lead iodide MAPbI3. The consequences\nof ferroelastic hysteresis, which involves the retention of structural\nmemory upon cycles of deformation, are r…
View article: Ferroelastic Hysteresis in Thin Films of Methylammonium Lead Iodide
Ferroelastic Hysteresis in Thin Films of Methylammonium Lead Iodide Open
Mechanical strain can modify the structural and electronic properties of methylammonium lead iodide MAPbI3. The consequences of ferroelastic hysteresis, which involves the retention of structural memory upon cycles of deformation, in polyc…
View article: Tamm plasmons in metal/nanoporous GaN distributed Bragg reflector cavities for active and passive optoelectronics
Tamm plasmons in metal/nanoporous GaN distributed Bragg reflector cavities for active and passive optoelectronics Open
We theoretically and experimentally investigate Tamm plasmon (TP) modes in a metal/semiconductor distributed Bragg reflector (DBR) interface. A thin Ag (silver) layer with a thickness (55 nm from simulation) that is optimized to guarantee …
View article: Bright magnetic dipole radiation from two-dimensional lead-halide perovskites
Bright magnetic dipole radiation from two-dimensional lead-halide perovskites Open
Unique radiation patterns reveal “forbidden” light-matter interactions in hybrid organic-inorganic ionic crystals.
View article: Using momentum-resolved optical spectroscopies to quantify anisotropic and multipolar phenomena in organic and hybrid organic-inorganic semiconductors
Using momentum-resolved optical spectroscopies to quantify anisotropic and multipolar phenomena in organic and hybrid organic-inorganic semiconductors Open
Herein, we describe a momentum-resolved optical reflectometry technique for precisely quantifying absorption anisotropies, with a particular interest in its ability to estimate distinct out-of-plane dipole strengths in solution-processable…
View article: Chemical and Structural Diversity of Hybrid Layered Double Perovskite Halides
Chemical and Structural Diversity of Hybrid Layered Double Perovskite Halides Open
Hybrid halide double perovskites are a class of compounds attracting growing interest because of their richness of structure and property. Two-dimensional (2D) derivatives of hybrid double perovskites are formed by the incorporation of org…
View article: CCDC 1950235: Experimental Crystal Structure Determination
CCDC 1950235: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1950236: Experimental Crystal Structure Determination
CCDC 1950236: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Controlling Solvate Intermediate Growth for Phase-Pure Organic Lead Iodide Ruddlesden–Popper (C<sub>4</sub>H<sub>9</sub>NH<sub>3</sub>)<sub>2</sub>(CH<sub>3</sub>NH<sub>3</sub>)<sub><i>n</i>−1</sub>Pb<i><sub>n</sub></i>I<sub>3<i>n</i>+1</sub> Perovskite Thin Films
Controlling Solvate Intermediate Growth for Phase-Pure Organic Lead Iodide Ruddlesden–Popper (C<sub>4</sub>H<sub>9</sub>NH<sub>3</sub>)<sub>2</sub>(CH<sub>3</sub>NH<sub>3</sub>)<sub><i>n</i>−1</sub>Pb<i><sub>n</sub></i>I<sub>3<i>n</i>+1</sub> Perovskite Thin Films Open
The growth of Ruddlesden-Popper perovskite thin films is complicated by the existence of multiple crystallization pathways available to precursors in solution. During conventional thin film growth processes, such as spin-coating or blade-c…