Sentences with phrase «nonlinear optical»

But the traditional devices suffer from relatively small nonlinear optical coefficients of conventional...

Heebner was cited for his «numerous innovations, achievements and technical leadership in high - energy laser systems and integrated optics including nonlinear optical microresonators and ultrafast light deflectors.»

Unexpectedly, the crystals exhibited the largest nonlinear optical response of any known crystal.

The work in Gail's group involves the design, development and application of linear and nonlinear optical instrumentation for biomedical imaging, from the nanoscale to the whole organism.

Nonlinear optical effects are widely used by engineers and scientists to generate new light frequencies, perform laser diagnostics and advance quantum computing.

The metamaterials were created with nonlinear optical response a million times as strong as traditional nonlinear materials and demonstrated frequency conversion in films 100 times as thin as human hair using light intensity comparable with that of a laser pointer.

Second harmonic light is a nonlinear optical property in which photons with the same frequency interact with a nonlinear material to produce new photons at twice the energy and half the wavelength of the originals.

Due to the small extent of optical nonlinearity in naturally occurring materials, high light intensities and long propagation distances in nonlinear crystals are typically required to produce detectable nonlinear optical effects.

«Our results show that nonlinear scattering theory can be a valuable tool in the design of nonlinear metamaterials not only for second - order but also higher order nonlinear optical responses over a broad range of wavelengths,» O'Brien says.

«Researchers invent «meta mirror» to help advance nonlinear optical systems.»

Scientists with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley have shown, using a recent theory for nonlinear light scattering when light passes through nanostructures, that it is possible to predict the nonlinear optical properties of metamaterials.

This will require accurately predicting nonlinear optical properties — meaning that interaction with light changes a material's properties, for example, light emerges from the material with a different frequency than when it entered.

The thin semiconductor layers confine electrons into desired quantum states, and gold nanocrosses resonate at input and output frequencies to enable the the nonlinear optical response of the mirror.

For the past several decades, scientists have estimated the nonlinear optical properties in natural crystals using a formulation known as «Miller's rule,» for the physicist Robert Miller who authored it.

In the developed light source, a nonlinear optical crystal is irradiated with light from an ultraviolet laser.

Since interacting light beams with different colours pass through a nonlinear optical material at different speeds, they can become «out of step» and the desired effect can be lost.

This eliminates the problem, and allows nonlinear optical devices to be more versatile in the type of optical processing that can be achieved.

It is difficult to make a green laser directly, so nonlinear optical crystals are used to convert infrared light to green.

The new multimodal imaging probe uses an ultrafast laser to create nonlinear optical effects in tissue that can reveal cancer and other diseases.

«Phase mismatch is one reason why nonlinear optical processes are not common in everyday life,» says Haim Suchowski, a member of Zhang's research group who along with Kevin O'Brien was the co-lead author of the Science paper.

«The removal of phase matching in nonlinear optical metamaterials may lead to applications such as efficient multidirectional light emissions for novel light sources and the generation of entangled photons for quantum networking.»

However, not many materials show nonlinear optical effects and, at the same time, exhibit sufficient light transmission in the infrared spectral range.

When these light sources were first made, nonlinear optics began to develop quickly, but even today not all nonlinear optical effects are fully researched.

We hope that our work will further spark interest in studying and manipulating nonlinear optical effects in novel nanoscale systems using unconventional excitation beams.»

Nonlinear optical processes provide the basis for important functionalities in photonics, such as frequency conversion of light, generation of ultrashort light pulses, as well as optical processing and manipulation.

c) Nonlinear optical microscope equipped with cylindrical vector beams at the Nonlinear Optics Group, Laboratory of Photonics at TUT.

Not exact matches

These take a pulse stretched out by an optical grating and send it into an artificial «nonlinear» crystal, in which the energy of a second, «pump» beam can be channeled into the pulse.

To investigate the nonlinear response of such plasmonic oligomers, the authors used a novel optical microscopy technique, which is equipped with polarization - structured beams.

Compared to prior investigations, which contained optical hysteresis in cavities containing nonlinear absorptive and dispersive gain media, the operation principles as physical processes and operating mechanisms in transistor laser electro - optical bistabilities are considerably different.

This nonlinear scattering process can cause signal distortions in fibre communications and signal processing applications and is well known to limit the capacity of optical fiber communications networks.

«The optical nonlinear response that we have observed introduces a new paradigm in nonlinear optics,» said De Leon, now a professor at Tecnologico de Monterrey, Mexico.

In a study led by Xiang Zhang, a faculty scientist with Berkeley Lab's Materials Sciences Division, the research team used a unique optical metamaterial with a refractive index of zero to generate «phase mismatch - free nonlinear light,» meaning the generated light waves move through the material gaining strength in all directions.

Different phase velocities lead to destructive interference due to the lack of optical momentum conservation between the photons, known as «phase mismatch» in the jargon of nonlinear optics.

The paper is titled «Phase Mismatch - Free Nonlinear Propagation in Optical Zero - Index Materials.»

As well as providing an important step towards optical computing, the team's achievement potentially solves a longstanding problem in nonlinear optics.

It was the discovery of optical second harmonic generation in 1961 that started modern nonlinear optics.

He has made pioneering discoveries in plasmonic cloaking (caused by the interaction of light and metal nanostructures) and invisibility, optical nanocircuits and nanoantennas, non-reciprocal devices, and giant nonlinear response in optical metamaterials.

Solid state physics, including the physics of condensed materials, nanostructures, thin films and surfaces and also topics in the field of theoretical and experimental optics, including the physics of optical crystals, nonlinear and quantum optics, and laser physics.

Also included are topics on new optical materials and nonlinear optics as well as ultr - fast dynamics, laser spectroscopy and laser cooling.

Such topics include time - resolved, coherent and non-linear Raman spectroscopies, nanostructure - based surface - enhanced and tip - enhanced Raman spectroscopies of molecules, resonance Raman to investigate the structure - function relationships and dynamics of biological molecules, linear and nonlinear Raman imaging and microscopy, biomedical applications of Raman, theoretical formalism and advances in quantum computational methodology of all forms of Raman scattering, Raman spectroscopy in archaeology and art, advances in remote Raman sensing and industrial applications, and Raman optical activity of all classes of chiral molecules.

Quantum Electronics Electronics, theoretical investigations of femtosecond laser pulses propagation in nonlinear medium, modeling by «C», «MATLAB», «SIMULINK» and Mathcad the optical devices for high speed optical communication systems, circuits and signals, digital signal processing, analog & mixed cmos circuit design, HSPICE, COSMOS Synopsys software, Multisim Electronics Workbench, design experience with 0.13 um, 90nm, 65...