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Full control of the libration potential in rotational levitodynamics
Joanna A. Zielińska, Fons van der Laan, Andreas Norrman +3
Control of the potential energy and free evolution lie at the heart of levitodynamics as key requirements for sensing, wave function expansion, and mechanical squeezing protocols.…
Observation of radiation torque shot noise on an optically levitated nanodumbbell
Fons van der Laan, René Reimann, Felix Tebbenjohanns +3
According to quantum theory, measurement and backaction are inextricably linked. In optical position measurements, this backaction is known as radiation pressure shot noise. In ana…
TMDC Resonators for Second Harmonic Signal Enhancement
Sebastian Busschaert, René Reimann, Moritz Cavigelli +3
In addition to their strong nonlinear optical response, transition metal dichalcogenides (TMDCs) possess a high refractive index in the visible and infrared regime. Therefore, by p…
Optically levitated rotor at its thermal limit of frequency stability
Fons van der Laan, René Reimann, Andrei Militaru +4
Optically levitated rotors are prime candidates for torque sensors whose precision is limited by the fluctuationsof the rotation frequency. In this work we investigate an optically…
Optical potential mapping with a levitated nanoparticle at sub-wavelength distances from a membrane
Rozenn Diehl, Erik Hebestreit, René Reimann +3
The controllable positioning of a vacuum-levitated object near a material surface is of importance for studying short-range forces, such as Casimir forces, interfacial friction for…
GHz Rotation of an Optically Trapped Nanoparticle in Vacuum
René Reimann, Michael Doderer, Erik Hebestreit +5
We report on rotating an optically trapped silica nanoparticle in vacuum by transferring spin angular momentum of light to the particle's mechanical angular momentum. At sufficient…
Calibration and temperature measurement of levitated optomechanical sensors
Erik Hebestreit, Martin Frimmer, René Reimann +3
Optically levitated nanoparticles offer enormous potential for precision sensing. However, as for any other metrology device, the absolute measurement performance of a levitated-pa…