151 citations · 898 across the 13 of their papers we have counts for
13 papers
500 W rod-type 4x4 multi-core ultrafast fiber laser
A. Klenke, A. Steinkopff, C. Aleshire +10
We present a coherently-combined femtosecond fiber CPA system based on a rod-type, Ytterbium-doped, multicore fiber with 4x4 cores. A high average power of up to 500 W (after combi…
Laser Cooling of a Yb Doped Silica Fiber by 18 Kelvin From Room Temperature
Brian Topper, Mostafa Peysokhan, Alexander R. Albrecht +10
A ytterbium doped silica optical fiber has been cooled by 18.4K below ambient temperature by pumping with 20W of 1035nm light in vacuum. In air, cooling by 3.6K below ambient was o…
Experimental Investigations on the TMI Thresholds of Low-NA Yb-doped single mode fibers
Franz Beier, Friedrich Moeller, Bettina Sattler +9
In this contribution we investigate the transversal mode instability behavior of an ytterbium doped commercial 20/400 fiber and obtain 2.9 kW of output power after optimizing the i…
Laser-induced anti-Stokes fluorescence cooling of ytterbium-doped silica glass by more than 6 Kelvin
Mostafa Peysokhan, Saeid Rostami, Esmaeil Mobini +12
Laser cooling of a solid is achieved when a coherent laser illuminates the material, and the heat is extracted by resulting anti-Stokes fluorescence. Over the past year, net solid-…
Laser Cooling of Silica Glass
Esmaeil Mobini, Saeid Rostami, Mostafa Peysokhan +11
Laser cooling of a solid is achieved when a coherent laser illuminates the material in the red tail of its absorption spectrum, and the heat is carried out by anti-Stokes fluoresce…
Silicon microcavity arrays with open access and a finesse of half a million
G. Wachter, S. Kuhn, S. Minniberger +10
Optical resonators are increasingly important tools in science and technology. Their applications range from laser physics, atomic clocks, molecular spectroscopy, and single-photon…
Probing Macroscopic Quantum Superpositions with Nanorotors
Benjamin A. Stickler, Birthe Papendell, Stefan Kuhn +4
Whether quantum physics is universally valid is an open question with far-reaching implications. Intense research is therefore invested into testing the quantum superposition princ…
Nanoparticle detection in an open-access silicon microcavity
Stefan Kuhn, Georg Wachter, Franz-Ferdinand Wieser +6
We report on the detection of free nanoparticles in a micromachined, open-access Fabry-Pérot microcavity. With a mirror separation of m, a radius of curvature of mm,…
Optically driven ultra-stable nanomechanical rotor
Stefan Kuhn, Benjamin A. Stickler, Alon Kosloff +4
Nanomechanical devices have attracted the interest of a growing interdisciplinary research community, since they can be used as highly sensitive transducers for various physical qu…
Full Rotational Control of Levitated Silicon Nanorods
Stefan Kuhn, Alon Kosloff, Benjamin A. Stickler +4
We study a nanofabricated silicon rod levitated in an optical trap. By manipulating the polarization of the light we gain full control over the ro-translational dynamics of the rod…
Ro-Translational Cavity Cooling of Dielectric Rods and Disks
Benjamin A. Stickler, Stefan Nimmrichter, Lukas Martinetz +3
We study the interaction of dielectric rods and disks with the laser field of a high finesse cavity. The quantum master equation for the coupled particle-cavity dynamics, including…
Cavity-assisted manipulation of freely rotating silicon nanorods in high vacuum
Stefan Kuhn, Peter Asenbaum, Alon Kosloff +7
Optical control of nanoscale objects has recently developed into a thriving field of research with far-reaching promises for precision measurements, fundamental quantum physics and…
Cavity cooling of free silicon nanoparticles in high-vacuum
Peter Asenbaum, Stefan Kuhn, Stefan Nimmrichter +2
Laser cooling has given a boost to atomic physics throughout the last thirty years since it allows one to prepare atoms in motional states which can only be described by quantum me…