Results 11 to 20 of about 8,920 (216)
Raman wavelength conversion in a multipass cell [PDF]
Optics Letters, 2021 Positively chirped femtosecond pulses at 1030 nm are wavelength-converted using spontaneous and stimulated Raman scattering in a potassium gadolinium tungstate crystal inserted inside a multipass cell. Recirculation in the cell and the Raman material allows both a high conversion efficiency and good spatial beam quality for the generated Stokes beams ...
Daher, Nour +4 more
openaire +4 more sources
Nonlinear Optics in Multipass Cells
Laser & Photonics Reviews, 2021 AbstractThe fundamental principles and experimental implementations of multipass cells used as a platform for nonlinear optics are reviewed. Embedding a nonlinear medium in a multipass cell allows for a distribution of the nonlinearity over large interaction distances, while the beam goes through multiple foci, conferring on the beam a robustness with ...
Hanna, Marc +5 more
openaire +3 more sources
Multipass automata and group word problems [PDF]
Theoretical Computer Science, 2015 We introduce the notion of multipass automata as a generalization of pushdown automata and study the classes of languages accepted by such machines. The class of languages accepted by deterministic multipass automata is exactly the Boolean closure of the class of deterministic context-free languages while the class of languages accepted by ...
Tullio Ceccherini-Silberstein +4 more
core +5 more sources
Multipass Target Search in Natural Environments [PDF]
Sensors, 2017 Consider a disaster scenario where search and rescue workers must search difficult to access buildings during an earthquake or flood. Often, finding survivors a few hours sooner results in a dramatic increase in saved lives, suggesting the use of drones ...
Michael J. Kuhlman +3 more
doaj +6 more sources
Defining Assembly of a Translocon for Multipass Membrane Protein Biogenesis [PDF]
, 2023 The cellular proteome is comprised of both soluble proteins and membrane proteins. Membrane proteins make up 30% of the human proteome and defects in their biogenesis results in a wide range of diseases.
Zhong, Frank Wang
core +1 more source
Dynamic Control of Phase Matching in Nonlinear Metasurfaces Using Pancharatnam–Berry Phase [PDF]
NanophotonicsCan mechanical rotation of a metasurface control the phase of a nonlinear optical signal? In a dual‐metasurface multipass cell, a circularly polarized pump interacts repeatedly with two plasmonic metasurfaces between two mirrors. By exploiting the geometric phase, rotating one metasurface shifts the phase‐matching condition of the second‐harmonic ...
Mekhael M +4 more
europepmc +2 more sources
Using integrating spheres as absorption cells: path-length distribution and application of Beer's law [PDF]
, 2009 We have modeled the path-length distribution in an integrating sphere used as a multipass optical cell for absorption measurements. The measured radiant flux as a function of analyte concentration is nonlinear as a result, deviating from that expected
Hodgkinson, Jane +5 more
core +1 more source
Simultaneous Multipass Resistive-Pulse Sensing and Fluorescence Imaging of Liposomes [PDF]
, 2023 Simultaneous multipass resistive-pulse sensing and fluorescence imaging have been used to correlate the size and fluorescence intensity of individual E. coli lipid liposomes composed of E.
Alexandra, Schmeltzer +4 more
core +2 more sources
Experimental analysis on CPA-free thin-disk multipass amplifiers operated in a helium-rich atmosphere [PDF]
, 2022 Es wird der Einfluss von Helium als atmosphärisches Gas in Scheibenlaser-multipass-Ultrakurzpulsverstärkern ...
Röcker, Christoph +4 more
core +1 more source
Axis positivity and the stability of linear multipass processes
, 2002 Focuses on axis positivity and the stability of linear multipass ...
Hayward, D.
core +3 more sources