Results 21 to 30 of about 229,074 (292)

CAVITY-ENHANCED ULTRAFAST SPECTROSCOPY: ULTRAFAST MEETS ULTRASENSITIVE

open access: yesProceedings of the 71st International Symposium on Molecular Spectroscopy, 2016
Ultrafast optical spectroscopy methods, such as transient absorption spectroscopy and 2D spectroscopy, are widely used across many disciplines. However, these techniques are typically restricted to optically thick samples, such as solids and liquid solutions.
Melanie A. R. Reber   +2 more
openaire   +1 more source

Ultrafast circular polarization oscillations in spin-polarized vertical-cavity surface-emitting laser devices [PDF]

open access: yes, 2010
Spin-polarized lasers offer new encouraging possibilities for future devices. We investigate the polarization dynamics of electrically pumped vertical-cavity surface-emitting lasers after additional spin injection at room temperature.
Ackemann, T.   +5 more
core   +1 more source

Ultrafast Thermal Nonlinearity [PDF]

open access: yesConference on Lasers and Electro-Optics, 2015
AbstractThird order nonlinear optical phenomena explored in the last half century have been predicted to find wide range of applications in many walks of life, such as all-optical switching, routing and others, yet this promise has not been fulfilled primarily because the strength of nonlinear effects is too low when they are to occur on the picosecond
Jacob B. Khurgin   +4 more
openaire   +2 more sources

High-power, µJ-class Kerr-lens mode-locked thin-disk oscillators at 2.1 µm [PDF]

open access: yesEPJ Web of Conferences
We report on the development of 2.1-µm high-power Kerr-lens mode-locked thin-disk oscillator configurations based on Ho:YAG, reaching up to 29 W of output power and 1.74 µJ of pulse energy.
Tomilov Sergei   +6 more
doaj   +1 more source

Ultrafast spin-lasers [PDF]

open access: yesNature, 2019
10 pages, 4 ...
Lindemann, Markus   +6 more
openaire   +3 more sources

Acoustic Vibration Modes of Gold–Silver Core–Shell Nanoparticles

open access: yesChemosensors, 2022
Bimetallic Au/Ag core–shell cuboid nanoparticles (NPs) exhibit a complex plasmonic response dominated by a dipolar longitudinal mode and higher-order transverse modes in the near-UV, which may be exploited for a range of applications.
Tadele Orbula Otomalo   +11 more
doaj   +1 more source

Ultrafast nonlocal control of spontaneous emission [PDF]

open access: yes, 2013
Solid-state cavity quantum electrodynamics systems will form scalable nodes of future quantum networks, allowing the storage, processing and retrieval of quantum bits, where a real-time control of the radiative interaction in the cavity is required to ...
A Faraon   +35 more
core   +3 more sources

Ultrafast Coherent Spectroscopy [PDF]

open access: yes, 1988
Coherent spectroscopy, initially started in the mid-sixties, is intimately conncected with the development of intense coherent light sources. The generation of ultrashort light pulses enabled coherent spectroscopy to be extended to real-time measurements of rapid dynamic processes on the time scale of 10−12 s.
Zinth, Wolfgang, Kaiser, Wolfgang
openaire   +2 more sources

Broadband regenerative amplifier based on Ho:CALGO at 2.1 μm [PDF]

open access: yesEPJ Web of Conferences
We present a broadband Ho:CALGO regenerative amplifier operating at 2.1 μm, delivering a pulse energy of 342 μJ at 1 kHz with a spectral bandwidth of 5 nm, supporting sub-ps pulse duration.
Suzuki Anna   +4 more
doaj   +1 more source

Ultrafast graphene photodetector [PDF]

open access: yesNature Nanotechnology, 2009
The electronic properties of graphene are unique and are attracting increased attention to this novel 2-dimensional system. Its photonic properties are not less impressive. For example, this single atomic layer absorbs through direct interband transitions a considerable fraction of the light (~2.3%) over a very a broad wavelength range.
Xia, Fengnian   +4 more
openaire   +3 more sources

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