118 citations · 675 across the 11 of their papers we have counts for
11 papers
Shaping the Branched Flow of Light through Disordered Media
Andre Brandstötter, Adrian Girschik, Philipp Ambichl +1
Electronic matter waves traveling through the weak and smoothly varying disorder potential of a semi-conductor show branching behavior instead of a smooth spreading of flow. By tra…
Particlelike scattering states in a microwave cavity
Julian Böhm, Andre Brandstötter, Philipp Ambichl +2
We realize scattering states in a lossy and chaotic two-dimensional microwave cavity which follow bundles of classical particle trajectories. To generate such particlelike scatteri…
Super- and Anti-Principal Modes in Multi-Mode Waveguides
Philipp Ambichl, Wen Xiong, Yaron Bromberg +3
We introduce a new type of states for light in multimode waveguides featuring strongly enhanced or reduced spectral correlations. Based on the experimentally measured multi-spectra…
Focusing inside Disordered Media with the Generalized Wigner-Smith Operator
Philipp Ambichl, Andre Brandstötter, Julian Böhm +3
We introduce a wavefront shaping protocol for focusing inside disordered media based on a generalization of the established Wigner-Smith time-delay operator. The key ingredient for…
Wave propagation through disordered media without backscattering and intensity variations
Konstantinos G. Makris, Andre Brandstötter, Philipp Ambichl +2
A fundamental manifestation of wave scattering in a disordered medium is the highly complex intensity pattern the waves acquire due to multi-path interference. Here we show that th…
Principal modes in multimode fibers: exploring the crossover from weak to strong mode coupling
Wen Xiong, Philipp Ambichl, Yaron Bromberg +3
We present experimental and numerical studies on principal modes in a multimode fiber with mode coupling. By applying external stress to the fiber and gradually adjusting the stres…
Particlelike wave packets in complex scattering systems
Benoît Gérardin, Jérôme Laurent, Philipp Ambichl +3
A wave packet undergoes a strong spatial and temporal dispersion while propagating through a complex medium. This wave scattering is often seen as a nightmare in wave physics wheth…
Spatio-temporal Control of Light Transmission through a Multimode Fiber with Strong Mode Coupling
Wen Xiong, Philipp Ambichl, Yaron Bromberg +2
We experimentally generate and characterize the eigenstates of the Wigner-Smith time-delay matrix, called principal modes, in a multimode fiber with strong mode coupling. The uniqu…
Invariance property of wave scattering through disordered media
Romain Pierrat, Philipp Ambichl, Sylvain Gigan +3
A fundamental insight in the theory of diffusive random walks is that the mean length of trajectories traversing a finite open system is independent of the details of the diffusion…
Breaking of PT-symmetry in bounded and unbounded scattering systems
Philipp Ambichl, Konstantinos G. Makris, Li Ge +3
PT-symmetric scattering systems with balanced gain and loss can undergo a symmetry-breaking transition in which the eigenvalues of the non-unitary scattering matrix change their ph…
Generating particle-like scattering states in wave transport
Stefan Rotter, Philipp Ambichl, Florian Libisch
We introduce a procedure to generate scattering states which display trajectory-like wave function patterns in wave transport through complex scatterers. These deterministic scatte…