Results 21 to 30 of about 48,645 (298)

3.8-μm Mid-Infrared Laser Quasi-Synchronously Pumped by a MOPA Structured Picosecond Yb Fiber Amplifier With Multi-pulse Operation

open access: yesIEEE Photonics Journal, 2016
A picosecond pulsed mid-infrared laser with multi-pulse operation is experimentally demonstrated. This mid-infrared laser was composed of a fiber laser pumped optical parametric oscillator (OPO).
Kaihua Wei, Xuefang Zhou, Xiaomin Lai
doaj   +1 more source

56W frequency doubled source at 530 nm pumped by a single-mode single-polarization picosecond Yb3+-doped fiber MOPA [PDF]

open access: yes, 2010
We report a frequency doubled green source at 530nm pumped based on an all-fiber, picosecond, single polarization Yb3+-doped fiber MOPA delivering 20ps pulses at user selectable repetition rates of up to 910MHz and an average output power in excess of ...
Chen, Kang Kang   +17 more
core   +1 more source

Early picosecond events in the photo cycle of Bacteriorhodopsin [PDF]

open access: yes, 1986
The primary processes of the photochemical cycle of light-adapted bacteriorhodopsin (BR) were studied by various experimental techniques with a time resolution of 5 × 10-13 s. The following results were obtained.
Koelling, E.   +5 more
core   +2 more sources

Generation of frequency shifted picosecond pulses with low temporal jitter [PDF]

open access: yes, 1984
Transient stimulated Raman scattering is used for the generation of a frequency shifted picosecond light pulse; part of this Raman shifted pulse is subsequently coherently scattered at a material excitation of a second Raman cell.
Hegemann, P.   +6 more
core   +1 more source

Nanostructuration of Thin Metal Films by Pulsed Laser Irradiations: A Review

open access: yesNanomaterials, 2019
Metal nanostructures are, nowadays, extensively used in applications such as catalysis, electronics, sensing, optoelectronics and others. These applications require the possibility to design and fabricate metal nanostructures directly on functional ...
Francesco Ruffino   +1 more
doaj   +1 more source

Numerical analysis of pulse pedestal and dynamic chirp formation on picosecond modelocked laser pulses after propagation through a semiconductor optical amplifier [PDF]

open access: yes, 2005
A numerical analysis, based on a modified Schrodinger equation, of the formation of pulse pedestals and dynamic chirp formation on picosecond pulses after propagation through a semiconductor optical amplifier is presented.
Anandarajah, Prince M.   +7 more
core   +2 more sources

Subnanosecond Marx Generators for Picosecond Gain-Switched Laser Diodes

open access: yesIEEE Photonics Journal
High precision time-of-flight based light detection and ranging (LiDAR) system needs compact ultrafast pulsed lasers, such as gain-switched semiconductor laser diodes, which have the advantages of low cost, small size, and mass-producible, for short ...
Fuyi Cao   +10 more
doaj   +1 more source

Picosecond fluorescence of intact and dissolved PSI-LHCI crystals [PDF]

open access: yes, 2008
Over the last years many crystal structures of photosynthetic pigment-protein complexes have been determined, and used extensively to model spectroscopic results obtained on the same proteins in solution. However, the crystal structure is not necessarily
Amerongen, H., van   +6 more
core   +1 more source

Towards shaping picosecond strain pulses via magnetostrictive transducers

open access: yesPhotoacoustics, 2023
Using time-resolved x-ray diffraction, we demonstrate the manipulation of the picosecond strain response of a metallic heterostructure consisting of a dysprosium (Dy) transducer and a niobium (Nb) detection layer by an external magnetic field. We utilize
Maximilian Mattern   +4 more
doaj   +1 more source

Externally-triggerable optical pump-probe scanning tunneling microscopy with a time resolution of tens-picosecond

open access: yes, 2023
Photoinduced carrier dynamics of nanostructures play a crucial role in developing novel functionalities in advanced materials. Optical pump-probe scanning tunneling microscopy (OPP-STM) represents distinctive capabilities of real-space imaging of such ...
Shoji Yoshida (2409916)   +7 more
core   +1 more source

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