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Fluorescence correlation spectroscopy.
This tutorial chapter is intended to give an "hands on" view of FCS, including calibration, measurement, and data treatment, and the major difficulties that are encountered when performing for the first time FCS.
Quantum key distribution using gaussian-modulated coherent states
This work proposes and experimentally demonstrate a quantum key distribution protocol based on the transmission of gaussian-modulated coherent states and shot-noise-limited homodyne detection, which is in principle secure for any value of the line transmission, against gaussian individual attacks based on entanglement and quantum memories.
Bright unidirectional fluorescence emission of molecules in a nanoaperture with plasmonic corrugations.
It is reported that gold nanoapertures surrounded by periodic corrugations transform standard fluorescent molecules into bright unidirectional sources and the increased light-matter coupling as well as the radiation pattern intensity is quantified.
Virtual entanglement and reconciliation protocols for quantum cryptography with continuous variables
- F. Grosshans, N. Cerf, J. Wenger, R. Tualle-Brouri, P. Grangier
- Computer Science, PhysicsQuantum Inf. Comput.
- 20 June 2003
It is shown that quantum key distribution protocols using quantum continuous variables can be made secure against individual gaussian attacks regardless the transmission of the optical line between Alice and Bob, and supports the idea that coherent state quantum cryptography may be unconditionally secure.
Direct imaging of photonic nanojets.
The direct experimental observation of photonic nanojets created by single latex microspheres illuminated by a plane wave at a wavelength of 520 nm displays all the specificities of aPhotonic nanojet.
Plasmonic antennas for directional sorting of fluorescence emission.
This work presents full directional control of the fluorescence emission from molecules in water solution by an optical antenna made of a nanoaperture surrounded by a periodic set of shallow grooves in a gold film and provides a new approach for high-sensitivity screening of molecular species in solution.
Three-dimensional subwavelength confinement of light with dielectric microspheres.
Dielectric microspheres are shown to be capable of confining light in a three-dimensional region of subwavelength dimensions when they are illuminated by tightly focused Gaussian beams. We show that…
A plasmonic 'antenna-in-box' platform for enhanced single-molecule analysis at micromolar concentrations.
A novel 'antenna-in-box' platform that is based on a gap-antenna inside a nanoaperture that combines fluorescent signal enhancement and background screening, offering high single-molecule sensitivity at micromolar sample concentrations and zeptolitre-range detection volumes.
Non-gaussian statistics from individual pulses of squeezed light
- J. Wenger, R. Brouri, P. Grangier
- PhysicsInternationalQuantum Electronics Conference…
- 25 February 2004
We describe the experimental observation of a degaussification protocol, mapping individual femtosecond pulses of squeezed light onto non-Gaussian states by using only simple linear optical elements.…
Optimizing Nanoparticle Designs for Ideal Absorption of Light
Resonant interaction of light with nanoparticles is essential for a broad range of nanophotonics and plasmonics applications, including optical antennas, photovoltaics, thermoplasmonics, and sensing.…