Results 21 to 30 of about 51,747 (268)
Control of Frequency Combs with Passive Resonators
Sensors, 2023 Tailored optical frequency combs are generated by nesting passive etalons within mode-locked oscillators. In this work, the oscillator generates a comb of 6.8 GHz with 106 MHz side-bands.
James Hendrie +2 more
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Ultrafast Photodynamics of Glucose [PDF]
The Journal of Physical Chemistry B, 2017 We have investigated the photodynamics of $β$-D-glucose employing our field-induced surface hopping method (FISH), which allows us to simulate the coupled electron-nuclear dynamics, including explicitly nonadiabatic effects and light-induced excitation.
Jens Petersen +2 more
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High-power, µJ-class Kerr-lens mode-locked thin-disk oscillators at 2.1 µm [PDF]
EPJ Web of ConferencesWe 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
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Broadband regenerative amplifier based on Ho:CALGO at 2.1 μm [PDF]
EPJ Web of ConferencesWe 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
An ultrafast algorithm for ultrafast time-resolved coherent Raman spectroscopy [PDF]
Communications ChemistryTime-resolved coherent Raman spectroscopy (CRS) is a powerful non-linear optical technique for quantitative, in-situ analysis of chemically reacting flows, offering unparalleled accuracy and exceptional spatiotemporal resolution. Its application to large polyatomic molecules, crucial for understanding reaction dynamics, has thus far been limited by the
Francesco Mazza, Dirk van den Bekerom
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Tunable Near and Mid-Infrared (1.3–5 µm) Picosecond Pulsed Optical Vortex Parametric Oscillator
PhotonicsIn this paper, we present a picosecond pulsed, synchronously pumped optical parametric oscillator producing vortex beam output with tunable wavelengths in the near- to mid-infrared range.
Mailikeguli Aihemaiti +7 more
doaj +1 more source
Dual-beam multipass cell compression for time-resolved femtosecond spectroscopy setups [PDF]
EPJ Web of ConferencesWe present a dual-beam single multi-pass cell compressor designed for applications in time-resolved pump-probe spectroscopy. A single MPC simultaneously compresses two beams with different pulse energies to the same pulse duration, allowing for ...
Omar Alan +3 more
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Biochemistry (Moscow)Abstract Current stage of proteomic research in the field of biology, medicine, development of new drugs, population screening, or personalized approaches to therapy dictates the need to analyze large sets of samples within the reasonable experimental time.
Ivan I, Fedorov +3 more
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Applied Physics Letters, 2000 We report the three-dimensional imaging of the vibrational, solvent, orientational, and electronic relaxation in organic fluorescent samples at 200–500 nm spatial resolution. This is achieved in steady-state recordings by exciting the fluorophore with a femtosecond pulse and subsequent quenching with a time-delayed, redshifted femtosecond pulse through
Dyba, M., Klar, T., Jakobs, S., Hell, S.
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Ultrafast Photochemistry in Liquids
Annual Review of Physical Chemistry, 2013 Ultrafast photochemical processes can occur in parallel with the relaxation of the optically populated excited state toward equilibrium. The latter involves both intra- and intermolecular modes, namely vibrational and solvent coordinates, and takes place on timescales ranging from a few tens of femtoseconds to up to hundreds of picoseconds, depending ...
Rosspeintner, Arnulf +2 more
openaire +4 more sources