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8 resultaten
Creation of quantum-degenerate gases of ytterbium in a compact 2D-/3D-magneto-optical trap setup.
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We report on the first experimental setup based on a 2D-/3D-magneto-optical trap (MOT) scheme to create both Bose-Einstein condensates and degenerate Fermi gases of several ytterbium isotopes. Our setup does not require a Zeeman slower and offers the flexibility to simultaneously produce ultracold
Degenerate Fermi gases of ytterbium.
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Evaporative cooling was performed to cool fermionic 173Yb atoms in a crossed optical dipole trap. The large elastic collision rate leads to efficient evaporation and we have successfully cooled the atoms to 0.37+/-0.06 of the Fermi temperature, that is to say, to a quantum degenerate regime. In this
Fiber-based source for multiplex-CARS microscopy based on degenerate four-wave mixing.
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We present a fiber-based laser source for multiplex coherent anti-Stokes Raman scattering (CARS) microscopy. This source is very compact and potentially alignment-free. The corresponding pump and Stokes pulses for the CARS process are generated by degenerate four-wave mixing (FWM) in
Fractional 1,550 nm Ytterbium/Erbium fiber laser in the treatment of lichen amyloidosis: clinical and histological study.
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OBJECTIVE
Lichen amyloidosis is characterized by amyloid deposition in the papillary dermis, presenting clinically with intensely pruritic hyperkeratotic papules. Various treatment modalities have been used but the results are generally unsatisfactory. Several studies show that non-ablative
The synthesis, X-ray structure and fluxional behaviour of an ytterbium(II) phenalenide complex.
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The first lanthanoid complexes containing delocalized phenalenide anions are reported and the rapid migration of the eta(3)-bonded metal centre between the three rings of the pi-system is the first report of a degenerate haptotropic rearrangement in organolanthanoid chemistry.
High average power coherent vuv generation at 10 MHz repetition frequency by intracavity high harmonic generation.
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Intracavity high harmonic generation was utilized to generate high average-power coherent radiation at vacuum ultraviolet (vuv) wavelengths. A ytterbium-doped fiber-laser based master-oscillator power-amplifier (MOPA) system with a 10 MHz repetition frequency was developed and used as a driving
Experimental demonstration of nonlinear pulse propagation in a fiber Bragg grating written in a fiber amplifier.
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We study experimentally nonlinear propagation of sub-nanosecond optical pulses in a fiber Bragg grating written in a Ytterbium-doped fiber amplifier (YD-FBG). The magnitude and the sign of group velocity dispersion (GVD) in YD-FBG can be controlled by adjusting the fiber tension. In the case of
Realization of a SU(2)×SU(6) system of fermions in a cold atomic gas.
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We report the realization of a novel degenerate Fermi mixture with an SU(2)×SU(6) symmetry in a cold atomic gas. We successfully cool the mixture of the two fermionic isotopes of ytterbium 171Yb with the nuclear spin I=1/2 and 173Yb with I=5/2 below the Fermi temperature T_{F} as 0.46TF for 171Yb
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