A5091822212- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Mechanical and Optical Resonators
- Optical Network Technologies
- Diamond and Carbon-based Materials Research
- Quantum optics and atomic interactions
- Quantum Information and Cryptography
- Laser-Matter Interactions and Applications
- Photonic Crystal and Fiber Optics
- Semiconductor materials and devices
- Semiconductor Lasers and Optical Devices
- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Subatomic Physics Research
- Neural Networks and Reservoir Computing
- Photonic Crystals and Applications
- Silicon Nanostructures and Photoluminescence
- Advanced Frequency and Time Standards
- Semiconductor Quantum Structures and Devices
- Advanced Fiber Optic Sensors
- Advanced Photonic Communication Systems
- Nonlinear Optical Materials Studies
- Solid State Laser Technologies
- Pulsars and Gravitational Waves Research
- Quantum and electron transport phenomena
- Geophysics and Sensor Technology
Stanford University
2019-2024
CentraleSupélec
2018-2019
Laboratoire de Photonique Quantique et Moléculaire
2017-2019
Centre National de la Recherche Scientifique
2018-2019
Université Paris-Saclay
2017-2019
Williams (United States)
2016-2018
William & Mary
2016-2018
Optically-addressable solid-state spin defects are promising candidates for storing and manipulating quantum information using their long coherence ground state manifold; individual can be entangled photon-photon interactions, offering a path toward large scale photonic networks. Quantum computing protocols place strict limits on the acceptable photon losses in system. These low-loss requirements cannot achieved without engineering, but attainable if combined with state-of-the-art...
The use of optical interconnects has burgeoned as a promising technology that can address the limits data transfer for future high-performance silicon chips. Recent pushes to enhance communication have focused on developing wavelength-division multiplexing technology, and new dimensions will be paramount fulfill ever-growing need speed. Here we demonstrate an integrated multi-dimensional scheme combines wavelength- mode- photonic circuit. Using foundry-compatible inverse design spectrally...
The integration of an optically coherent, long-lived spin qubit in a silicon carbide-on-insulator photonics platform showcases the potential carbide quantum computing and communications applications.
Inverse design has revolutionized the field of photonics, enabling automated development complex structures and geometries with unique functionalities unmatched by classical design. However, use inverse in nonlinear photonics been limited. In this work, we demonstrate quantum light generation silicon carbide nanophotonic inverse-designed Fabry-Pérot cavities. We achieve ultra-low reflector losses while targeting a pre-specified anomalous dispersion to reach optical parametric oscillation. By...
Correlated magnetic noise from Schumann resonances threatens to contaminate the observation of a stochastic gravitational-wave background in interferometric detectors. In previous work, we reported on first effort eliminate global correlated using Wiener filtering, demonstrating as much factor two reduction coherence between magnetometers different continents. this present results dedicated magnetometer measurements at Virgo and KAGRA sites, which are for subtraction data detector sites. We...
Abstract The ability to shape photon emission facilitates strong photon-mediated interactions between disparate physical systems, thereby enabling applications in quantum information processing, simulation and communication. Spectral control solid state platforms such as color centers, rare earth ions, dots is particularly attractive for realizing on-chip. Here we propose the use of frequency-modulated optical transitions spectral engineering single emission. Using a scattering-matrix...
Soliton microcombs are self-organized pulses of light sustained in driven Kerr microresonators, intensively studied for applications integrated photonic technologies and their rich nonlinear dynamics. In this work, we theoretically study the collective dynamics quantum fluctuations soliton microcombs. We find that mean field a dissipative crystal is accompanied by squeezed multimode vacuum derives its operational stability from strong detuning below-threshold parametric process. present...
Silicon carbide (SiC) is rapidly emerging as a leading platform for the implementation of nonlinear and quantum photonics. Here, we find that commercial SiC, which hosts variety spin qubits, possesses low optical absorption can enable SiC integrated photonics with quality factors exceeding <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:msup> <mml:mn>10</mml:mn> <mml:mn>7</mml:mn> </mml:msup> </mml:mrow> </mml:math> . We...
Highly efficient photonic couplers are a necessary component of scalable platform to couple quantum emitters into fiber networks. We inverse-designed for use in gallium arsenide membrane-based photonics that compatible with indium dots, one the highest quality light sources available. fabricated and tested at least 4 instances devices following 11 different designs. All structures outperformed traditional grating outcoupler single-mode optical setup. Using novel sleeve bulk fabrication...
The recent discovery of merging black holes suggests that a stochastic gravitational-wave background is within reach the advanced detector network operating at design sensitivity. However, correlated magnetic noise from Schumann resonances threatens to contaminate observation background. In this paper, we report on first effort eliminate intercontinental using Wiener filtering. Using magnetometers as proxies for detectors, demonstrate much factor two reduction in coherence between different...
We investigate a recently proposed scheme for differential detection of the magneto-optical rotation effect and its application to electromagnetically induced transparency (EIT) atomic clocks [Opt. Lett.40, 3703 (2015)OPLEDP0146-959210.1364/OL.40.003703]. This utilizes linearly polarized bichromatic laser field that is EIT-resonant with alkali atoms. The results our study reveal suppression noise can substantially improve signal-to-noise ratio in EIT clocks. Our preliminary demonstrate an...
Traditionally used for abrasives, LEDs and transistors, the material may enable scalable quantum nonlinear photonics through direct integration of solid-state qubits into photonic circuits.
We experimentally demonstrate a 400 Gbit/s optical communication link utilizing wavelength-division multiplexing and mode-division for total of 40 channels. This utilizes novel, to the best our knowledge, GHz frequency comb source based on chip-scale photonic crystal resonator. Silicon-on-insulator inverse-designed 4 × multiplexer structures enable fourfold increase in data capacity. show less than -10 dBm receiver power error-free transmission 34 out channels using PRBS31 pattern.
We study a squeezed vacuum field generated in hot Rb vapor via the polarization self-rotation effect. Our previous experiments showed that amount of observed squeezing may be limited by contamination output with higher-order spatial modes, also inside cell. Here, we demonstrate can improved making light interact several times less dense atomic ensemble. With optimization some parameters achieve up to -2.6 dB multi-pass case, which is 0.6 improvement compared single-pass experimental...
Microlasers are of ample interest for advancing quantum chaos studies at the intersection wave dynamics and geometric optics in resonators. However, mode structures three-dimensional microlasers without rotational symmetry remained largely unexplored due to fabrication limitations which have been overcome by now. Previous such cavities revealed lasing modes localized on periodic orbits exclusively confined a single plane. In this work, we report characterization pyramidal, polymer-based...
The strong coupling regime between a photonic cavity and an artificial atom in 4H-Silicon Carbide-on-insulator photonics is demonstrated, using high-finesse whispering gallery mode resonator single silicon vacancy center.
Modern microelectronic processors have migrated towards parallel computing architectures with many-core processors. However, such expansion comes diminishing returns exacted by the high cost of data movement between individual The use optical interconnects has burgeoned as a promising technology that can address limits this transfer. While recent pushes to enhance communication focused on developing wavelength-division multiplexing technology, approach will eventually saturate usable...
An outstanding challenge for color center-based quantum information processing technologies is the integration of optically-coherent emitters into scalable thin-film photonics. Here, we report on near-transform-limited silicon vacancy (V$_{\text{Si}}$) defects microdisk resonators fabricated in a CMOS-compatible 4H-Silicon Carbide-on-Insulator platform. We demonstrate single-emitter cooperativity up to 0.8 as well optical superradiance from pair centers coupled same cavity mode. investigate...
We implement inverse-designed nano-resonators in 4H-Silicon-Carbide-on-Insulator and demonstrate high quality factors quantum frequency comb generation.
Microlasers are involved in a broad range of devices for numerous research applications. However, the mode structures three-dimensional microlasers without rotational symmetry largely unexplored. Previous studies such cavities revealed lasing modes exclusively localized on periodic orbits plane parallel to substrate, which is say that associated momentum vectors concentrated plane. In this paper, we characterize three-dimensional, polymer-based Fabry-Perot (i.e., ribbon-shaped) microcavities...