Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
We propose a scheme for recovering quantum states from a single observable, corresponding to a single setup, by adding a known ancilla state, introducing mixing between degrees of freedom, and utilizing structure in the states.
We present, in experiments and simulations, a novel technique facilitating subwavelength resolution in a single-shot fluorescence imaging without capturing multiple frames, thereby enabling video-rate super-resolution imaging within living cells.
We present a family of one-dimensional quasiperiodic crystal which simultaneously display both the fractal bandstructure typical to quasiperiodic structures and properties normally exclusive to periodic structures, including Bloch-like modes.
We design tailored artificial optical gauge fields with ordinary dielectric birefringent materials. Using this method, we realize a wide range of phenomena: Quantum Hall effect, Haldane Topological-Insulators, Rashba effect and more.
We demonstrate, against current knowledge, that Anderson localization can occur for wavepackets outside the spectral extent of the disordered potential, mediated by second order transitions.
We show that introducing asymmetric coupling can force all the modes of a waveguide lattice to localize, except for one topologically protected “edge-state” which becomes extended. This mode has real eigenvalues and retains topological properties.
We observe non-diffracting beam channels propagating in liquid soap membranes and study this phenomenon experimentally. The channel's width is determined by the power of the beam and the thickness of the membrane.
We study the interface between two artificial gauge fields in a 2D photonic lattice, and find the analogues of Snell's law and Fresnel coefficients of such interfaces.
Precise and scalable positioning of nanoscale emitters, such as nanodiamonds with color centers, on solid substrates is essential for realizing integrated quantum devices and sensor arrays. We present a novel approach to meet this need.
We propose a practical design to implement of a topological insulator laser. Due to the topological protection, the topological laser maintains a high slope efficiency and single mode lasing even in the presence of defects and disorder.
We show how to modify the effective Hamiltonian of a dynamic system in an almost arbitrary fashion, using periodic gauge and driving. As an example, we generalize dynamic localization and counteract disorder effects in waveguide lattices.
We show that, counterintuitive, it is possible to control the properties of photonic topological insulators by tailoring defects. In the extreme case, a lattice of defects inside a topological insulator creates a totally new topological insulator.
We propose a new class of photonic topological insulators, for which we use synthetic dimensions to induce topologically-protected photonic propagation in the bulk of the lattice instead of around the edge.
Multiple photon absorption processes typically have a nonlinear dependence on the amplitude of the incident optical field. On the other hand, quantum technologies rely on single photon events. It has therefore been of great technical difficulty to achieve nonlinear devices using single photons. This is due to the small cross-section of absorption in room temperature devices, with multi-photon absorption...
Traditionally, spatial resolution in optical imaging is limited by diffraction. Although sub-wavelength information is absent in the measurements, state-of-the-art fluorescence based localization techniques such as PALM and STORM manage to achieve spatial resolution of tens of nano-meters, but with limited temporal resolution. A more recent technique super-resolution optical fluctuation imaging (SOFI)...
We show that non-Hermitian bipartite optical lattices display a spontaneous phase transition from a regime of entirely real spectrum to a complex one. This work broadens the scope of non-Hermitian optics beyond PT-symmetry.
The general relativity effect of frame-dragging: the precession of test particles in the spacetime surrounding spinning masses, is demonstrated by solitons rotating the space around them via nonlocal nonlinearities, transferring angular momentum to probe beams.
We show that prior knowledge that a quantum state is close to a pure state enables a direct and efficient measurement of the density matrix representing the state, using the weak measurements methodology.
We introduce non-diffracting accelerating beams propagating on spherical surfaces. We find close form-solutions to the wave equation, and demonstrate their non-geodesic propagation dynamics in experiments.
We show that Čerenkov radiation contains new phenomena arising from the quantum nature of charged fermions. The charge's orbital angular momentum and spin couple to the emitted photon, which scatters into preferred angles and polarizations.
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.