A5045110762- Photonic and Optical Devices
- Mechanical and Optical Resonators
- Quantum Information and Cryptography
- Quantum optics and atomic interactions
- Advanced Fiber Laser Technologies
- Quantum Computing Algorithms and Architecture
- Quantum Mechanics and Applications
- Diamond and Carbon-based Materials Research
- Laser-Matter Interactions and Applications
- High-pressure geophysics and materials
- Semiconductor Quantum Structures and Devices
- Semiconductor Lasers and Optical Devices
- Quantum and electron transport phenomena
- Force Microscopy Techniques and Applications
- Plant Surface Properties and Treatments
- Leaf Properties and Growth Measurement
- Near-Field Optical Microscopy
- Smart Agriculture and AI
- Electronic and Structural Properties of Oxides
- Metal and Thin Film Mechanics
- Spectroscopy and Quantum Chemical Studies
- Petroleum Processing and Analysis
- Enhanced Oil Recovery Techniques
- Reservoir Engineering and Simulation Methods
- Advanced Thermodynamics and Statistical Mechanics
University of Tyumen
2022-2023
Institut National de la Recherche Scientifique
2015-2017
Université de Montréal
2013-2014
University of Oxford
2008-2013
Laboratoire de Photonique Quantique et Moléculaire
2013
Centre National de la Recherche Scientifique
2013
Entangled frequency combs The ability to generate optical in which the output light is made up of millions sharp lines precisely spaced apart has been important for applications and fundamental science. Reimer et al. now show that can be taken into quantum regime. They took individual teeth quantum-mechanically entangled them form complex states. Because method compatible with existing fiber semiconductor technology, results demonstrate a possible scalable practical platform technologies....
Large arrays of uniform, precisely tunable, open-access optical microcavities with mode volumes as small 2.2 μm(3) are reported. The cavities show clear Hermite-Gauss structure and display finesses up to 460, in addition quality (Q) factors excess 10,000. attractive for use quantum optics applications, such single atom detection efficient photon sources, have potential be extended experiments the strong coupling regime.
Stress and strain are important factors in determining the mechanical, electronic, optical properties of materials, relating to each other by material's elasticity or stiffness. Both represented second rank field tensors with, general, six independent components. Measurements these quantities usually achieved measuring a property that depends on translational symmetry periodicity crystal lattice, such as phonon energies using Raman spectroscopy, electronic band gap cathodoluminescence,...
We report the photoluminescence characteristics of a colour centre in diamond grown by plasma-assisted chemical vapour deposition. The emits with sharp zero-phonon line at 2.330 eV (λ=532 nm) and lifetime 3.3 ns, thus offering potential for high-speed single-photon source green emission. It displays vibronic emission spectrum Huang–Rhys parameter 2.48 77 K. Hanbury–Brown Twiss measurements reveal that electronic level structure defect includes metastable state can be populated from optically...
We report on the design and performance of a high stability scanning confocal microscope for optical microscopy at low temperatures. By beam in cold objective lens system, we achieve wide fields view without compromising image quality. Photoluminescence from single nitrogen-vacancy centers purity diamond is used to illustrate imaging microscope.
We propose a family of sifting-less quantum-key-distribution protocols which use reverse reconciliation, and are based on weak coherent pulses (WCPs) polarized along $m$ different directions. When $m=4$, the physical part protocol is identical to most experimental implementations BB84 [Bennett Brassard, in Proceedings IEEE International Conference Computers, Systems, Signal Processing (IEEE, New York, 1984)] SARG04 [Scarani, Ac\'{\i}n, Ribordy, Gisin, Phys. Rev. Lett. 92, 057901 (2004);...
A method to efficiently and quantitatively study the delivery of a pesticide-surfactant formulation in water solution plant leaves is presented. The methodology measurement surface leaf wet area used instead more problematic contact angle. based on Deep Learning model was automatically measure cucumber by processing frames video footage. We have individuated an existing model, called HED-UNet, reported literature for other applications, we applied it this different task with minor...
Nonclassical light sources of single and entangled photons are the backbone future quantum communications infrastructure, cornerstone for realizing optical computers. To reach practical applications, however, enormous technical complexity today’s must be drastically reduced through development integrated devices. In recent work, we have presented an approach generating multiple two-photon multiphoton states within a waveguide mode.
A method to efficiently and quantitatively study the delivery of a pesticide-surfactant formulation in water solution over plants leaves is presented. Instead measuring contact angle, surface wet area used as key parameter. To this goal, deep learning model has been trained tested, automatically measure with cucumber leaves, processing frames video footage. We have individuated an existing model, reported literature for other applications, we applied it different task. present measurement...
We report the generation of multiple-frequency time-bin entangled photon pairs from a single integrated CMOS-compatible microring resonator. Entanglement on five channel with visibilities above 82.6% (93.8% background-corrected) is demonstrated.
This paper reports the results of application some software tools based on deep learning models, processing microscopic images interface between crude oil and water, while propagating in microfluidic channels. The U-Net model is used to classify pixels separate them from rest (semantic segmentation). has allowed for automatic measurement geometric parameters meniscus, making possible large amounts images. Live videos meniscus have been recorded water propagates guides previously filled with...
By superimposing two different spontaneous four-wave mixing processes inside a bi-modally pumped CMOS-compatible mircoring resonator, we report the generation of four-mode two-photon multi-correlated states and measure entanglement.
Optical quantum states are fundamental for applications in information processing. We show that integrated frequency comb sources, operating the regime, can provide a scalable and versatile platform state generation.
We show the generation of multiple time-bin entangled qubits, with high purity and covering entire L, C, S telecommunication bands. This is achieved using spontaneous four-wave mixing within an on-chip micro-resonator.
We show the generation of two-photon multi-correlated states over four modes and their pairwise entanglement by superimposing two different spontaneous four-wave mixing processes exploiting a bi-modally pumped CMOS-compatible microring resonator.
Exploiting spontaneous four-wave mixing within an integrated CMOS-compatible microring resonator, we demonstrate the simultaneous generation of multiple time-bin entangled photon pairs, confirmed by quantum interference and state tomography with fidelities above 86%.
Exploiting a bi-modally pumped CMOS-compatible microring resonator, we superimpose two different spontaneous four-wave mixing processes and demonstrate the generation of two-photon multi-correlated states over four modes their pairwise entanglement.