A5003889338- Mechanical and Optical Resonators
- Advanced Fiber Laser Technologies
- Photonic and Optical Devices
- Quantum Electrodynamics and Casimir Effect
- Advanced Fiber Optic Sensors
- Advanced Thermodynamics and Statistical Mechanics
- Advanced Frequency and Time Standards
- Advanced MEMS and NEMS Technologies
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum Mechanics and Applications
- Experimental and Theoretical Physics Studies
- Quantum optics and atomic interactions
- Force Microscopy Techniques and Applications
- Photonic Crystal and Fiber Optics
- Optical Network Technologies
- Scientific Measurement and Uncertainty Evaluation
- Semiconductor Lasers and Optical Devices
- Quantum, superfluid, helium dynamics
- Advanced Materials Characterization Techniques
- Optical properties and cooling technologies in crystalline materials
- Geophysics and Sensor Technology
- Noncommutative and Quantum Gravity Theories
- Quantum many-body systems
- Sensor Technology and Measurement Systems
- Solid State Laser Technologies
Northern Arizona University
2018-2024
Interface (United States)
2020-2023
Material Sciences (United States)
2020-2022
Yale University
2014-2018
International Society for Optics and Photonics
2018
Los Alamos National Laboratory
2011-2014
Los Alamos National Security (United States)
2014
University of Maryland, College Park
2009-2011
Joint Quantum Institute
2011
Brillouin laser oscillators offer powerful and flexible dynamics as the basis for mode-locked lasers, microwave oscillators, optical gyroscopes in a variety of systems. However, interactions are exceedingly weak conventional silicon photonic waveguides, stifling progress towards silicon-based lasers. The recent advent hybrid photonic-phononic waveguides has revealed to be one strongest most tailorable nonlinearities silicon. Here, we harness these engineered demonstrate lasing Moreover, show...
We demonstrate 0.034 dB/m loss waveguides in a 200-mm wafer-scale, silicon nitride (Si3N4) CMOS-foundry-compatible integration platform. fabricate resonators that measure up to 720 million intrinsic Q resonator at 1615 nm wavelength with 258 kHz linewidth. This is used realize Brillouin laser an energy-efficient 380 µW threshold power. The performance achieved by reducing scattering losses through combination of single-mode TM waveguide design and etched blanket-layer low-pressure chemical...
Laser stabilization sits at the heart of many precision scientific experiments and applications, including quantum information science, metrology atomic timekeeping. These systems narrow laser linewidth stabilize carrier by use Pound-Drever-Hall (PDH) locking to a table-scale, ultra-high quality factor (Q), vacuum spaced Fabry-Perot reference cavity. Integrating these cavities, bring characteristics PDH chip-scale, is critical reduce their size, cost, weight, enable wide range portable...
Abstract High quality-factor (Q) optical resonators are a key component for ultra-narrow linewidth lasers, frequency stabilization, precision spectroscopy and quantum applications. Integration in photonic waveguide platform is to reducing cost, size, power sensitivity environmental disturbances. However, date, the Q of all-waveguide has been relegated below 260 Million. Here, we report Si 3 N 4 resonator with 422 Million intrinsic 3.4 Billion absorption-limited Qs. The 453 kHz intrinsic, 906...
We use general concepts of statistical mechanics to compute the quantum frictional force on an atom moving at constant velocity above a planar surface. derive zero-temperature using nonequilibrium fluctuation-dissipation relation, and we show that in large-time, steady-state regime, friction scales as cubic power atom's velocity. also discuss how approaches based Wigner-Weisskopf regression approximations fail predict correct force, mainly due low-frequency nature friction.
The dynamics of cascaded-order Brillouin lasers make them ideal for applications such as rotation sensing, highly coherent optical communications, and low-noise microwave signal synthesis. Remarkably, when implemented at the chip scale, recent experimental studies have revealed that can operate in fundamental linewidth regime where optomechanical quantum noise sources dominate. To explore new opportunities enhanced performance, we formulate a simple model to describe physics cascaded based...
The ability to amplify light within silicon waveguides is central the development of highperformance photonic device technologies.To this end, large optical nonlinearities made possible through stimulated Brillouin scattering offer a promising avenue for power-efficient allsilicon amplifiers, with recent demonstrations producing several dB net amplification.However, scaling degree amplification technologically compelling levels (> 10 dB), necessary everything from filtering small signal...
Electrostatic patch potentials give rise to forces between neutral conductors at distances in the micrometer range and must be accounted for analysis of Casimir force experiments. In this paper we develop a quasi-local model describing random on metallic surfaces. contrast some previously published results, find that patches may provide significant contribution measured signal, render experimental data below 1 compatible with theoretical predictions based Drude model.
Photonic integrated single mode lasers that deliver ultra-low fundamental linewidth and high output power are critical for future precision atomic quantum sciences, high-capacity coherent fiber communications, sensing, ultra-low-noise microwave mmWave generation. Achieving both low frequency noise simultaneously requires a laser can provide strong nonlinear suppression with an ultra-high quality factor (Q) large volume lasing cavity to reach intra-cavity photon population. Brillouin...
Kelvin probe force microscopy at normal pressure was performed by two different groups on the same Au-coated planar sample used to measure Casimir interaction in a sphere-plane geometry. The obtained voltage distribution calculate separation dependence of electrostatic ${P}_{\mathrm{res}}(D)$ configuration experiments. In calculation it assumed that potential sphere has statistical properties as measured one, and there are no correlation effects distributions due presence other surface....
In this paper, we explore the spatiotemporal dynamics of spontaneous and stimulated forward Brillouin scattering. This general treatment incorporates optomechanical coupling produced by boundary-induced radiation pressures (boundary motion) material-induced electrostrictive forces (photoelastic effects), permitting straightforward application to a range emerging micro- nanoscale systems. Through self-consistent fully coupled nonlinear treatment, developed within Hamiltonian framework,...
Recent progress in manipulating atomic and condensed matter systems has instigated a surge of interest non-equilibrium physics, including many-body dynamics trapped ultracold atoms ions, near-field radiative heat transfer, quantum friction. Under most circumstances the complexity such requires number approximations to make theoretical descriptions tractable. In particular, it is often assumed that spatially separated components system thermalize with their immediate surroundings, although...
Optical resonator-based frequency stabilization plays a critical role in ultra-low linewidth laser emission and precision sensing, atom clocks, quantum applications. However, there has been limited success translating traditional bench-top cavities to compact on-chip integrated waveguide structures that are compatible with photonic integration. The challenge lies realizing waveguides not only deliver low optical loss but also exhibit thermo-optic coefficient noise stability. Given the...
Photonic integrated resonators have advantages over traditional benchtop cavities in terms of size, weight, and cost with the potential to enable applications that require spectrally pure light. However, suffer from temperature-dependent frequency variations are sensitive external environmental perturbations, which hinders their usage precision applications. One solution is use interrogation cavity temperature through dual-mode optical thermometry (DMOT) by measuring shift resonance...
Photonic-bandgap fibers have had major impact from fundamental studies of photon–atom interactions to new applications in nonlinear optics. While much is known about the optical properties these fibers, relatively little their optomechanical properties. Here we identify a form coupling gas-filled hollow-core fibers. We show that forward Brillouin scattering produced by air core photonic bandgap fiber. A single resonance identified at 35 MHz, which corresponds guided sound wave within center...
We discuss the failure of Markov approximation in description atom-surface fluctuation-induced interactions, both equilibrium (Casimir-Polder forces) and out (quantum friction). Using general theoretical arguments, we show that can lead to erroneous predictions such phenomena with regard strength functional dependencies on system parameters. In particular, long-time power-law tails two-time dipole correlations their corresponding low-frequency behavior, neglected Markovian limit, affect...
New strategies for converting signals between optical and microwave domains could play a pivotal role in advancing both classical quantum technologies. Traditional approaches to optical-to-microwave transduction typically perturb or destroy the information encoded on intensity of light field, eliminating possibility further processing distribution these signals. In this paper, we introduce an conversion method that allows detection spectral analysis photonic without degradation their...
In this paper we give a first principles microphysics derivation of the nonequilibrium forces between an atom, treated as three-dimensional harmonic oscillator, and bulk dielectric medium modeled continuous lattice oscillators coupled to reservoir. We assume no direct interaction atom but there exist mutual influences transmitted via common electromagnetic field. By employing concepts techniques open quantum systems introduce coarse-graining physical variables---the medium, field, atom's...
In force sensing experiments intended to measure non-Newtonian gravitational signals electrostatic patch potentials can give rise spurious forces, torques, and noise. Undesired patch-induced interactions lead systematic effects which limit accuracy, noise place lower limits on precision. this paper we develop the theory for isoelectronic experiments, where their mean effect is nullified by design. We derive analytical expressions torque power spectrum estimate limitations introduced signals.
Patch potentials arising from the polycrystalline structure of material samples may contribute significantly to measured signals in Casimir force experiments. Most these experiments are performed sphere-plane geometry; yet, up now all analysis patch effects has been taken into account using proximity approximation which, essence, treats sphere as a plane. In this paper we present exact solution for electrostatic interaction energy geometry and derive analytical formulas minimizing potential....
We quantify the strength of stimulated forward Brillouin scattering in hollow-core photonic bandgap fiber through a combination experiments and multi-physics simulations. spectroscopy methods reveal family densely spaced Brillouin-active phonon modes below 100 MHz with coupling strengths that approach those conventional silica fiber. The experimental results are corroborated by simulations, revealing relatively strong optomechanical is mediated electrostriction radiation pressure within...