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I will review the properties of phase-sensitive amplifiers based on three- and four-wave mixing in second- and third-order nonlinear media, and the consequences of these properties for information transmission. I will also describe some potential applications of these devices.
Optical coherence tomography (OCT) is a high-speed, label-free, and deep tissue imaging method which has a potential technique to build volumetric anatomy of mouse brains. Despite its inherent advantages, limited efforts have been applied in using OCT for large-scale imaging in neuroscience research. This presentation covers the latest work of volumetric mouse brain imaging using OCT. Specifically,...
New paradigms for optical physics emerge from the integration of ultra-cold atoms with photonic crystal waveguides. I will review progress and prospects in this emerging field at the interfaces of nano-photonics, atomic physics, and quantum optics.
Optical imaging of the structure and function deep within a mouse brain is a major scientific challenge in neuroscience. We review recent advances in multiphoton microscopy for mouse brain imaging, and discuss some future directions.
On September 14th 2015 the LIGO gravitational wave observatories detected a coincident signal from the merger of two massive black holes 1.3 billion years ago. We explore the work needed to build these interferometers, look at the history behind the discovery, and discuss the future for the new field of gravitational wave astronomy.
The advent of several key enabling electro-optics technologies afford advanced, non-topographic remote sensing instruments for space. We will present progress on several new, space-based laser instruments that are being developed at NASA GSFC. Long Abstract: In the past 20+ years, NASA Goddard Space Flight Center (GSFC) has successfully developed and flown lidars for mapping of Mars, the Earth, Mercury...
Biomaterials offer opportunities for devices that operate at the interface of the biological and technological worlds. Devices such as silk-based photonic crystals, lasers, wireless antennas and resorbable electronics will be described as examples of the possibilities that this water-processed, biocompatible material offers.
Nonlinear wave mixing in optical microresonators offers a route to chip-level optical frequency combs. The properties of the combs generated depend crucially on the interaction between nonlinearity and dispersion. This tutorial will discuss comb generation in both anomalous and normal dispersion microresonators, with an emphasis on recent advances in the normal dispersion regime.
Photonic technologies hold immense promise to revolutionise astronomical instrumentation. In addition to miniature robust alignment-free optical systems, new functionalities available in the photonic domain may be incorporated. Innovative reformulation of high resolution imaging systems to empower new generation large telescopes will be discussed.
Advances in photovoltaics moved the advanced research frontiers towards concepts that can enable ultrahigh efficiency (ν = 30–50% and beyond). Achievement of ultrahigh efficiencies requires addressing fundamental optical principles and full solar spectrum utilization. Making significant progress requires combining i) fundamental principles governing limits to solar conversion efficiency ii) materials...
It is now possible to coherently manipulate the spectral, temporal and polarization of high harmonic generation using visible laser beams, to sculpt this quantum light source for specific applications.
With the discovery of gravitational waves from the binary black hole merger GW150914, the Laser Interferometer Gravitational-wave Observatory entered a new era in observational astrophysics. In this talk, I will discuss the astrophysical implications of this discovery as well as the status of searches for other promising sources of gravitational waves.
This talk reviews the advances in low-noise parametric frequency comb synthesis and the application in unconventional sensing. High SNR, phase-correlated parametric combs have recently enabled sub-noise detection of ephemeral (ps-scale) event through direct Fourier decomposition.
Advanced sensing requires a careful examination of fluctuating fields caused by light-matter interaction. We review basic concepts related to non-universal properties of coherence and polarization and their relation to the microscopic structure of heterogeneous media.
Hybrid states that result from strong light-matter coupling have been shown to exhibit material properties that differ significantly from those of the uncoupled states, including the work function[1], chemical reactivity[2], ultra-fast energy relaxation[3, 4] and electrical conductivity[5]. In this talk we will show that waveguide-plasmon polaritons, which result from the strong coupling of localised...
We review photonic quantum simulation, its use in biology, chemistry, computer science and physics, and its prospects for scaling given the latest advances in quantum photonics, notably in sources, detectors, and nonlinear interactions.
We investigate theoretically and experimentally some basic nonlinear effects in optical fibers whose parameters are longitudinally modulated. We will show that it leads to very rich and original dynamics.
Adaptive optics systems, using both natural and laser guide stars, are the key technologies for the future Extremely Large Telescopes. We will review the characteristics and the main issues of these future systems.
In the generation of high harmonics from a ZnO crystal we find that “generalized recollisions” between electrons and their holes dominate the emission, and that they can be used to reconstruct the crystal band structure.
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