TOM 1 - Silicon Photonics and Guided-Wave Optics
TOM 2 - Computational, Adaptive and Freeform Optics
TOM 3 - Optical System Design, Tolerancing and Manufacturing
TOM 4 - Bio-Medical Optics
TOM 5 - Resonant Nanophotonics
TOM 6 - Optical Materials: crystals, thin films, organic molecules & polymers, syntheses, characterization and applications
TOM 7 - Thermal radiation and energy management
TOM 8 - Non-linear and Quantum Optics
TOM 9 - Opto-electronic Nanotechnologies and Complex Systems
TOM 10 - Frontiers in Optical Metrology
TOM 11 - Tapered optical fibers, from fundamental to applications
TOM 12 - Optofluidics
TOM 13 - Advances and Applications of Optics and Photonics
EU Project Session
Early Stage Researcher Session
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Please note that all times are shown in the time zone of the conference. The current conference time is: 26th Nov 2022, 07:31:10pm WET
8:30am - 9:00am Invited ID: 363 / TOM8 S04: 1 TOM 8 Non-linear and Quantum Optics
Quantum imaging with entangled photons
School of Physics and Astronomy, University of Glasgow, United Kingdom
9:00am - 9:30am Invited ID: 362 / TOM8 S04: 2 TOM 8 Non-linear and Quantum Optics
Quantum technologies with single molecules and photons
Costanza Toninelli, Maja Collautti
This presentation will be presented by Maja Collautti.
The generation and manipulation of quantum states of light is required for key applications, such as photonic quantum simulation, linear optical quantum com- puting, quantum communication proto- cols, and quantum metrology. In this con- text, single organic molecules in the family of polycyclic aromatic hydrocar- bons (PAH), once embedded in suitable host matrices, offer competitive proper- ties and key advantages. Being very small and with well-defined transition dipole moments, they can be used as nanoscopic sensors of e.g. pressure, strain, temperature, electric and magnet- ic fields, as well as optical fields. Fur- thermore, PAH molecules can be easily fabricated and exhibit strong zero- phonon lines, which reach their Fourier- limited natural linewidth at liquid helium temperature, thus providing very bright and stable sources of coherent photons in the solid state.
9:30am - 9:45am ID: 266 / TOM8 S04: 3 TOM 8 Non-linear and Quantum Optics
Single atom photon pair source
Jürgen Volz, Xinxin Hu, Garbiele Maron, Luke Master, Lucas Pache, Arno Rauschenbeutel
Department of Physics, Humboldt Universität zu Berlin, Germany
Sources of entangled photon pairs are a crucial ingredient for many applications in quantum information and communication. Of particular interest are narrow-band sources with bandwidths that are compatible with solid state systems such as atomic media for storage and manipulation of the photons. Here, we experimentally realize a source of energy-time entangled photon pairs where the photons pairs are generated by scattering light from a single two-level atom and separated from the coherently scattered light via a narrow-band filter. We verify the performance of our pair-source by measuring the second order correlation function of the atomic fluorescence and we observe that one can continuously tune the photon statistics of the atomic fluorescence from perfect photon anti-bunching to strong photon bunching expected for a photon pair source. Our experiment demonstrates a novel way to realize a photon pair source for photons with spectral bandwidths and resonance frequencies that are inherently compatible with atomic media.
9:45am - 10:00am ID: 200 / TOM8 S04: 4 TOM 8 Non-linear and Quantum Optics
Fourier-limited attosecond pulse generation with magnetically pumped high-order harmonic generation
Rodrigo Martín-Hernández, Luis Plaja, Carlos Hernández-García
Universidad de Salamanca, Spain
After more than two decades of attosecond physics, the generation and control of the shortest laser pulses available remains as a complex task. One of the main limitations of reducing the temporal duration of attosecond pulses emitted from high-order harmonic generation (HHG) is the attochirp. In this contribution, we demonstrate that HHG assisted by strong fast oscillating magnetic fields enables the generation of Fourier-limited attosecond pulses in the water window. In short, the magnetic field generates a nanowire-like structure, which transversally confines the electronic wavefunction in the HHG process. We demonstrate that the resulting HHG spectrum extends well beyond the semiclassical cutoff frequency, and most interestingly, it is emitted in the form of few-cycle, Fourier-limited, attosecond pulses.