10 citations · 41 across the 8 of their papers we have counts for
9 papers
Microscopic theory of the collective optical response of dilute atomic clouds at finite temperature
Tanja Schoger, Romain Pierrat, Nicolas Cherroret
At low temperature, collective light-induced dipole-dipole interactions are known to strongly reshape the optical response of atomic clouds, revealing the breakdown of the independ…
Enantioselective optical trapping and characterization of all dielectric disorder-enabled chiral particles
Guilherme T. Moura, Tanja Schoger, Kainã G. Diniz +9
We trap submicroscopic silica spheres coated with randomly distributed titanium dioxide nanoparticles in optical tweezers with Laguerre-Gaussian modes and observe orbital dynamics…
Probing the chirality of a single microsphere trapped by a focused vortex beam through their orbital period
Kainã Diniz, Tanja Schoger, Arthur L. Fonseca +6
When microspheres are illuminated by tightly focused vortex beams, they can be trapped in a non-equilibrium steady state where they orbit around the optical axis. By using the Mie-…
Switching the sign of the Casimir force between two PEMC spheres
Tanja Schoger, Gert-Ludwig Ingold
For non-reciprocal objects in vacuum, the Casimir interaction can become repulsive. Here, we present a comprehensive study for idealized non-reciprocal materials known as perfect e…
Precise in situ radius measurement of individual optically trapped microspheres using negative optical torque exerted by focused vortex beams
Kainã Diniz, Tanja Schoger, Guilherme T. Moura +6
We demonstrate a new method for determining the radius of micron-sized particles trapped by a vortex laser beam. The technique is based on measuring the rotation experienced by the…
Casimir effect between spherical objects: proximity-force approximation and beyond using plane waves
Tanja Schoger, Benjamin Spreng, Gert-Ludwig Ingold +1
For the Casimir interaction between two nearby objects, the plane-wave basis proves convenient for numerical calculations as well as for analytical considerations leading to an opt…
Universal Casimir interactions in the sphere-sphere geometry
Tanja Schoger, Benjamin Spreng, Gert-Ludwig Ingold +3
We study universal Casimir interactions in two configurations which appear as dual to each other. The first involves spheres described by the Drude model and separated by vacuum wh…
Universal Casimir interaction between two dielectric spheres in salted water
Tanja Schoger, Benjamin Spreng, Gert-Ludwig Ingold +2
We study the Casimir interaction between two dielectric spheres immersed in a salted solution at distances larger than the Debye screening length. The long distance behavior is dom…
Classical Casimir free energy for two Drude spheres of arbitrary radii: A plane-wave approach
Tanja Schoger, Gert-Ludwig Ingold
We derive an exact analytic expression for the high-temperature limit of the Casimir interaction between two Drude spheres of arbitrary radii. Specifically, we determine the Casimi…