A5077780617- Advanced Fiber Laser Technologies
- Photonic and Optical Devices
- Neural Networks and Reservoir Computing
- Spectroscopy and Laser Applications
- Optical Network Technologies
- Photorefractive and Nonlinear Optics
- Solid State Laser Technologies
- Mass Spectrometry Techniques and Applications
- Laser-Matter Interactions and Applications
- Quantum Information and Cryptography
- Cold Atom Physics and Bose-Einstein Condensates
- Mechanical and Optical Resonators
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Quantum Computing Algorithms and Architecture
- Advanced Memory and Neural Computing
- Laser Design and Applications
- Photonic Crystal and Fiber Optics
- Advanced Battery Materials and Technologies
- Advanced Photonic Communication Systems
- Advanced Optical Sensing Technologies
- Spectroscopy and Quantum Chemical Studies
- Semiconductor materials and devices
- Atomic and Subatomic Physics Research
- Ocular and Laser Science Research
University of Southern California
2022-2025
Max Planck Institute of Quantum Optics
2016-2024
Southern California University for Professional Studies
2024
Munich Center for Quantum Science and Technology
2022-2023
Vassar College
2022-2023
Massachusetts Institute of Technology
2021-2023
Cambridge Electronics (United States)
2022-2023
Corning (United States)
2022
Optica
2022
University of Central Florida
2022
Advanced machine learning models are currently impossible to run on edge devices such as smart sensors and unmanned aerial vehicles owing constraints power, processing, memory. We introduce an approach inference based delocalized analog processing across networks. In this approach, named Netcast, cloud-based "smart transceivers" stream weight data devices, enabling ultraefficient photonic inference. demonstrate image recognition at ultralow optical energy of 40 attojoules per multiply (<1...
Abstract Laser frequency combs emit a spectrum with hundreds of thousands evenly spaced phase-coherent narrow lines. A comb-enabled instrument, the dual-comb interferometer, exploits interference between two and attracts considerable interest in precision spectroscopy sensing, distance metrology, tomography, telecommunications, etc. Mutual coherence over measurement time is pre-requisite to interferometry, although it instrumentally challenging. At best, mutual reaches about 1 s....
Abstract Laser frequency comb generators on photonic chips open up the exciting prospect of integrated dual-comb microspectrometers. Amongst all nanophotonic platforms, technology low-loss thin-film lithium-niobate-on-insulator shows distinguishing features, such as possibility to combine various optoelectronic and nonlinear optical functionalities that harness second- third-order nonlinearities, thus promises fabrication a fully on-chip instrument. Here, critical step towards achievement is...
Analog quantum simulations with Rydberg atoms in optical tweezers routinely address strongly correlated many-body problems due to the hardware-efficient implementation of Hamiltonian. Yet, their generality is limited, and flexible Hamiltonian-design techniques are needed widen scope these simulators. Here we report on realization spatially tunable interactions for XYZ models implemented by two-color near-resonant coupling pair states. Our results demonstrate unique opportunities dressing...
Abstract Ultraviolet spectroscopy provides unique insights into the structure of matter with applications ranging from fundamental tests to photochemistry in Earth’s atmosphere and astronomical observations space telescopes 1–8 . At longer wavelengths, dual-comb spectroscopy, using two interfering laser frequency combs, has become a powerful technique capable simultaneously providing broad spectral range very high resolution 9 Here we demonstrate photon-counting approach that can extend...
Mid-infrared high-resolution spectroscopy has proven an invaluable tool for the study of structure and dynamics molecules in gas phase. The advent frequency combs advances frontiers precise molecular spectroscopy. Here we demonstrate, important 3-µm spectral region fundamental CH stretch molecules, dual-comb with experimental coherence times between that exceed half hour. Fourier transform using two self-calibration scale, negligible contribution instrumental line shape to profiles, high...
Dual-comb spectroscopy (DCS) normally operates with two independent, relatively low power and actively synchronized laser sources. This hinders the wide adoption for practical implementations frequency conversion into deep UV VUV spectral ranges. Here, we report a fully passive, high dual-comb based on thin-disk technology its application to direct comb spectroscopy. The peak (1.2 MW) average (15 W) of our Yb:YAG system are more than one-order-of-magnitude higher in any previous systems....
Blackbody radiation, omnipresent at room temperature, couples nearby Rydberg states. The resulting state mixture features strong dipolar interactions, which may induce dephasing in a many-body system. Here we report on single atom resolved study of this contamination and the emerging pairwise interactions optical tweezers. For near-resonant laser detuning observe characteristic correlations with length scale set by interaction. Our reveals microscopic origin avalanche excitation observed...
Dual-comb systems based on two optical frequency combs of slightly different line spacing emerge as powerful tools in spectroscopy and interferometry. Semiconductor lasers have a high impact continuous-wave tunable laser spectroscopy. Here we demonstrate the first dual-comb interferometer single femtosecond semiconductor laser: modelocked optically pumped external-cavity surface-emitting (MIXSEL) ideally suited for 1 to 10 GHz comb spacing. At center wavelength 1.03 µm (9709 cm-1) measured...
The stability of integrated photonic circuits is crucial for applications requiring high frequency precision or robust operation over time, such as optomechanical sensing, conversion, optical communication, and quantum optics. Photonic memory useful low-energy computing interconnects. Thin-film lithium niobate (TFLN), an emerging platform, exhibits complex material properties including pyroelectric photorefractive effects which could cause intra-device drift excess noise under different...
Time-resolved near-infrared absorption spectroscopy of single non-repeatable transient events is performed at high spectral resolution with a dual-comb interferometer using continuous-wave laser followed by electro-optic amplitude modulator. By sharing high-speed electrical/optical components, our spectrometer greatly simplifies the implementation and it offers mutual coherence time, measured up to 50-s, without any active stabilization system and/or data processing. The time resolution,...
We experimentally demonstrate efficient passively Q-switched bulk lasers with composite Yb:YAG/Cr4+:YAG/YAG crystals at 1030 nm for the first time, to best of our knowledge. The output performance was investigated based on different initial transmissions (T0) Cr4+:YAG and (Toc) coupler. Stable passive Q-switching crystal T0=85% coupler Toc=32% resulted in maximum average power 2.55 W, corresponding pulse duration 11.5 ns repetition rate 5.71 kHz. energy peak were 446.25 μJ 38.8 kW, respectively.
Frequency combs, spectra of evenly-spaced narrow phase-coherent laser lines, have revolutionized precision measurements. On-chip frequency comb generators hold much promise for fully-integrated instruments time and metrology. While outstanding developments are being reported with Kerr, quantum cascade microring electro-optic the field high-resolution multiplexed gas-phase spectroscopy has remained inaccessible to such devices, because their large line spacing, small number usable intensity...
We experimentally demonstrated, the first time to best of our knowledge, intracavity Stokes frequency conversion using a Yb:YAG crystal as gain medium and YVO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> Raman crystal. At an incident pump power 9.72 W pulse repetition 39 kHz, first-Stokes emission at 1157.6 nm with spectral linewidth 2.2 was observed respect shift 890 cm <inline-formula xmlns:xlink="http://www.w3.org/1999/xlink">...