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Quantum dots (QDs) are interesting material options for the lighting and display markets, however, several limitations have limited QD applicability. This tutorial will review both limitations and breakthroughs in QD performance that has led to their recent commercialization in both of these markets.
The unique combination of the LCLS x-ray laser with high-power nanosecond and femtosecond laser beams at the Matter of Extreme Conditions allows precision pump-probe studies of high energy density plasmas. For this purpose, we are building a new 200 TW laser system to measure and uncover the underlying physics mechanism that determine the interaction of ultra intense laser beams with matter. The repetition...
One of the elementary processes in quantum magnetism is the propagation of spin excitations. Here we study the quantum dynamics of a deterministically created spin-impurity atom, as it propagates in a one-dimensional lattice system [1]. We probe the spatial probability distribution of the impurity at different times using single-site-resolved imaging of bosonic atoms in an optical lattice. In the...
Metamaterials with hyperbolic dispersion (where two eigenvalues of the dielectric permittivity tensor have opposite signs) exhibit a broad bandwidth singularity in the photonic density of states, with resulting manifestations in a variety of phenomena, from spontaneous emission to light propagation and scattering. In this tutorial, I will review some of the recent developments in this field.
Nanocrystals that have unusual or exceptional optical properties have shown promise as transformative probes for biological imaging. Phosphorescent upconverting nanoparticles (UCNPs) have proven to be especially promising as biological labels, and single-particle studies of UCNPs have shown that they exhibit nearly ideal properties as single molecule imaging probes. UCNPs absorb two or more photons...
We have investigated the role that quantum rod (QR) morphology, composition, and surface chemistry play in resonance energy transfer phenomena. By fine-tuning the synthetic conditions, it is possible to tailor the aspect ratio of CdSe/CdS core-shell QRs from 2–8. The aspect ratio, as well as initial core diameter, determines the spectral properties of the QR, and the emission was tuned between 600–700...
The generalized Nonlinear Schrödinger Equation (GNLSE): i∂ϕ/∂ t+1/2 Δ ϕ + F(| ϕ|2) ϕ = 0 is a fundamental equation for the universal propagation of dispersive and nonlinear waves [1-4]. In the presence of high order nonlinear responses, these equations exhibit instabilities that lead to wave collapse [1, 4]. The study of collapse has stirred significant interest in scientific community, especially...
The design ideas of thin disk lasers will be explained in detail. Experimental results for continuous wave operation and for pulsed operation show the capability for building high power lasers with high efficiency and good beam quality, simultaneously. Modelling the thin disk laser behaviour shows the possible power and energy scalability.
The National Ignition Facility at Lawrence Livermore National Laboratory is a 1.8 MJ, 192 beam laser designed to produce the conditions of temperature and density in compressed deuterium-tritium ice which theory predicted would produce thermonuclear ignition. All of the exquisite technical requirements of the laser and the targets have been met. A comprehensive set of diagnostics has been installed...
Precise real time modulation of the laser energy flux during material processing enables the regulation of specific chemical/physical properties on a highly localized scale. The presentation focuses on a control-system architecture and its implementation that delivers well defined photon exposures at the proper location and time.
Similar molecules or materials have comparable composition, structure, and other properties thus making them difficult to discriminate for purposes of detection. Although the species may be spectrally similar, they each could have significantly different (quantum) dynamical behavior for detection. Optimal dynamic discrimination (ODD) aims to maximally draw out the differences among similar species...
We demonstrate a cold-atom Raman laser that operates quasi-continuously with as few as 0.2 photons on average inside the cavity and with a single-atom Raman decay rate below 1 Hz. We demonstrate that the laser's coherence is primarily stored within the atoms, and consider the relationship between the Schawlow-Townes linewidth and the standard quantum limit on phase estimation using unentangled atoms...
In recent years, NV centers in diamond has attracted significant attention as a candidate for quantum information devices. The negatively charged NV center, in particular, has been intensely investigated [1-3]. NV− centers host both an electron spin qubit and a nitrogen nuclear spin, in our case a nuclear spin-1/2 of 15N is imbedded. The ground state of the electron spin qubit has a long coherence...
Over the last fifteen years, the tailoring of a light field for manipulating the dynamics of a system at the quantum level has taken a prevalent role in modern atomic, molecular and optical physics. As first described by Keldysh [1], the ionization of an atom by an intense laser field will evolve depending upon the light characteristics and atomic binding energy. Numerous experiments have thoroughly...
Silicon Nanophotonics enables dense integration of electrical circuits with optical devices scaled down to diffraction limit. I will describe how chip-to-chip optical interconnects can be designed starting from devices up to a system level.
We will be giving an overview on the development of the “ELI-beamline facility” built within the Extreme Light Infrastructure (ELI) project based on the European ESFRI (European Strategy Forum on Research Infrastructures) process.
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