A5043241987- Photonic and Optical Devices
- Mechanical and Optical Resonators
- Advanced MEMS and NEMS Technologies
- Advanced Fiber Laser Technologies
- Semiconductor Quantum Structures and Devices
- Photonic Crystals and Applications
- Semiconductor Lasers and Optical Devices
- Force Microscopy Techniques and Applications
- Quantum Information and Cryptography
- Near-Field Optical Microscopy
- Optical Coatings and Gratings
- Plasmonic and Surface Plasmon Research
- Optical Network Technologies
- Metamaterials and Metasurfaces Applications
- Quantum optics and atomic interactions
- Neural Networks and Reservoir Computing
- Advanced Photonic Communication Systems
- Thermal Radiation and Cooling Technologies
- Microwave Engineering and Waveguides
- Geophysics and Sensor Technology
- Avian ecology and behavior
- Nanowire Synthesis and Applications
- Advanced Fluorescence Microscopy Techniques
- Electromagnetic Simulation and Numerical Methods
- Nonlinear Optical Materials Studies
National Institute of Standards and Technology
2015-2024
National Institute of Standards
2009-2024
Center for Nanoscale Science and Technology
2012-2023
Physical Measurement Laboratory
2019-2023
Universidade Federal de São Carlos
2012-2020
University of Maryland, College Park
2009-2018
University of Bristol
2018
Physical Sciences (United States)
2018
Universidade de Sorocaba
2017
Harvey Mudd College
2016
Integrated photonics is at the heart of many classical technologies, from optical communications to biosensors, LIDAR, and data center fiber interconnects. There strong evidence that these integrated technologies will play a key role in quantum systems as they grow few-qubit prototypes tens thousands qubits. The underlying laser with required functionality performance, can only be realized through integration components onto photonic circuits (QPICs) accompanying electronics. In last decade,...
Abstract Self-assembled, epitaxially grown InAs/GaAs quantum dots (QDs) are promising semiconductor emitters that can be integrated on a chip for variety of photonic information science applications. However, self-assembled growth results in an essentially random in-plane spatial distribution QDs, presenting challenge creating devices exploit the strong interaction single QDs with highly confined optical modes. Here, we present photoluminescence imaging approach locating respect to alignment...
Photonic integration is an enabling technology for photonic quantum science, offering greater scalability, stability, and functionality than traditional bulk optics. Here, we describe a scalable, heterogeneous III-V/silicon platform to produce Si$_3$N$_4$ circuits incorporating GaAs-based nanophotonic devices containing self-assembled InAs/GaAs dots. We demonstrate pure singlephoton emission from individual dots in GaAs waveguides cavities - where strong control of spontaneous rate observed...
We demonstrate strong exciton-photon coupling of Frenkel excitons at room temperature in a microcavity composed melt grown thin film anthracene single crystal and two distributed Bragg reflectors. Angle-resolved reflectivity normal incidence photoluminescence under weak excitation are observed. The spectrum is function the anisotropy crystalline material excitonic resonances to cavity photon. found be completely polarized along axes.
We demonstrate optomechanically mediated electromagnetically induced transparency and wavelength conversion in silicon nitride (Si3N4) microdisk resonators. Fabricated devices support whispering gallery optical modes with a quality factor (Q) of 10(6), radial breathing mechanical Q=10(4) resonance frequency 625 MHz, so that the system is resolved sideband regime. Placing strong control field on red (blue) detuned mode produces coherent interference resonant probe beam, inducing (absorption)...
We demonstrate a nanostructure composed of partially etched annular trenches in suspended GaAs membrane, designed for efficient and moderately broadband (≈5 nm) emission extraction from single InAs quantum dots. Simulations indicate that dipole embedded the center radiates upward into free space with nearly Gaussian far field, allowing collection efficiency >80% high numerical aperture (NA = 0.7) optic ≈12× Purcell radiative rate enhancement. Fabricated devices exhibit ≈10% photon NA...
We demonstrate heralded single photon generation in a CMOS-compatible silicon nanophotonic device. The strong modal confinement and slow group velocity provided by coupled resonator optical waveguide (CROW) produced large four-wave-mixing nonlinearity coefficient gamma_eff ~4100 W^-1 m^-1 at telecommunications wavelengths. Spontaneous using degenerate pump beam 1549.6 nm created pairs 1529.5 1570.5 with coincidence-to-accidental ratio exceeding 20. A correlation measurement of the signal...
Monolayers of transition metal dichalcogenide materials emerged as a new material class to study excitonic effects in solid state, since they benefit from enormous coulomb correlations between electrons and holes. Especially WSe2, sharp emission features have been observed at cryogenic temperatures, which act single photon sources . Tight exciton localization has assumed induce an anharmonic excitation spectrum, however, the evidence hypothesis, namely demonstration localized biexciton, is...
Chip-based cavity optomechanical systems are being considered for applications in sensing, metrology, and quantum information science.Critical to their development is an understanding of how the optical mechanical modes interact, quantified by coupling rate g 0 .Here, we develop GaAs resonators investigate moving dielectric boundary photoelastic contributions .First, consider between fundamental radial breathing mode a 1550 nm band whispering gallery microdisks.For decreasing disk radius...
Single self-assembled InAs/GaAs quantum dots are a promising solid-state technology, with which vacuum Rabi splitting, single-photon-level nonlinearities, and bright, pure, indistinguishable single-photon generation having been demonstrated. For such achievements, nanofabrication is used to create structures in the dot preferentially interacts strongly-confined optical modes. An open question extent may also have an adverse influence, through creation of traps surface states that could...
We demonstrate a deterministic Purcell-enhanced single photon source realized by integrating an atomically thin WSe2 layer with circular Bragg grating cavity. The cavity significantly enhances the photoluminescence from and supports generation g(2)(0) < 0.25. observe consistent increase of spontaneous emission rate for emitters located in center These are self-aligned deterministically coupled to such broadband cavity, configuring new sources, characterized their simple low-cost production...
The scaling of many photonic quantum information processing systems is ultimately limited by the flux light throughout an integrated circuit. Source brightness and waveguide loss set basic limits on on-chip photon flux. While substantial progress has been made, separately, towards ultra-low chip-scale circuits high single-photon sources, integration these technologies remained elusive. Here, we report a emitter source with wafer-scale, silicon nitride We demonstrate triggered pure emission...
Sensitive transduction of the motion a microscale cantilever is central to many applications in mass, force, magnetic resonance, and displacement sensing. Reducing size nanoscale dimensions can improve bandwidth sensitivity techniques like atomic force microscopy, but current optical methods suffer when small compared achievable spot size. Here, we demonstrate sensitive monolithic cavity-optomechanical system which subpicogram silicon with sharp probe tip separated from microdisk resonator...
Deterministic techniques enabling the implementation and engineering of bright coherent solid-state quantum light sources are key for reliable realization a next generation devices. Such technology, at best, should allow one to significantly scale up number implemented devices within given processing time. In this work, we discuss possible technology platform such scaling procedure, relying on application nanoscale dot imaging pillar microcavity architecture, which promises combine very high...
Abstract Radiation pressure has recently been used to effectively couple the quantum motion of mechanical elements fields optical or microwave light. Integration all three degrees freedom—mechanical, and microwave—would enable a interconnect between systems. We present platform based on silicon nitride nanomembranes for integrating superconducting circuits with planar acoustic devices such as phononic photonic crystals. Using capacitors vacuum gaps 60 nm spiral inductor coils micron pitch we...
Silicon photonics enables scaling of quantum photonic systems by allowing the creation extensive, low-loss, reconfigurable networks linking various functional on-chip elements. Inclusion single emitters onto circuits, acting as on-demand sources indistinguishable photons or single-photon nonlinearities, may enable large-scale chip-based circuits and networks. Toward this, we use low-temperature in situ electron-beam lithography to deterministically produce hybrid GaAs/Si3N4 devices...
This article introduces in archival form the Nanolithography Toolbox, a platform-independent software package for scripted lithography pattern layout generation.The Center Nanoscale Science and Technology (CNST) at National Institute of Standards (NIST) developed Toolbox to help users CNST NanoFab design devices with complex curves aggressive critical dimensions.Using parameterized shapes as building blocks, allows rapidly nanoscale arbitrary complexity through scripting programming.The...
We report a photoluminescence imaging system for locating single quantum emitters with respect to alignment features. Samples are interrogated in 4 K closed-cycle cryostat by high numerical aperture (NA = 0.9, 100× magnification) objective that sits within the cryostat, enabling efficiency collection of emitted photons without image distortions due windows. The locations InAs/GaAs dots &gt;50 μm × 50 field view determined ≈4.5 nm uncertainty (one standard deviation) 1 s long acquisition....
The inherent crystal anisotropy of hexagonal boron nitride (hBN) provides the ability to support hyperbolic phonon polaritons, that is, polaritons can propagate with very large wave vectors within material volume, thereby enabling optical confinement exceedingly small dimensions. Indeed, previous research has shown nanometer-scale truncated nanocone hBN cavities, deep subdiffractional dimensions, three-dimensionally confined modes in mid-infrared. Because selection rules, only a few many...
The propagation characteristics of a subwavelength plasmonic crystal are studied based on its complex Bloch band structure. Photonic bands generated with an alternative 2D Finite Element Method formulation in which the wave problem is reduced to quadratic eigenvalue system for wavevector amplitude k. This method constitutes efficient and convenient nonlinear search methods normally employed calculation photonic when dispersive materials involved. yields modes that determine wave-scattering...
Low-noise, tunable wavelength-conversion through nondegenerate four-wave mixing Bragg scattering in SiN(x) waveguides is experimentally demonstrated. Finite element method simulations of waveguide dispersion are used with the split-step Fourier to predict device performance. Two 1550 nm wavelength band pulsed pumps achieve conversion a 980 signal over range 5 peak efficiency ≈5%. The demonstrated process suitable for frequency quantum states light.
Hybrid quantum information devices that combine disparate physical systems interacting through photons offer the promise of combining low-loss telecommunications wavelength transmission with high fidelity visible storage and manipulation. The realization such requires control over waveform single to achieve spectral temporal matching. Here, we experimentally demonstrate simultaneous translation amplitude modulation generated by a dot emitting near 1300 nm an exponentially-decaying (lifetime...