The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We experimentally demonstrate the impact of disorder on edge states in photonic graphene and find strong evidence that not only chirality but also the vanishing of the density-of-states at zero-energy is preserved under structural disorder.
We report an observation of soliton rains in normal dispersion Yb fiber laser. The cavity consisted of a narrow filter and a broad birefringent plate filter. Soliton rain was obtained in the weak mode-locking regime.
Quantum photonics is a promising technology for implementing quantum information tasks. We demonstrate integration of multiple photon pair sources together with a circuit enabling creation and manipulation of photon pairs in a monolithic silicon-on-insulator chip.
We theoretically demonstrate that if pump powers are kept low enough to suppress multi-pair events in integrated photon pair generation via spontaneous four-wave mixing, many other nonlinear effects are often also constrained to negligible levels.
Transparent conductive oxides (TCOs) as substitutes to metals could offer many advantages for low-loss plasmonic and metamaterial (MM) applications in the near infrared (NIR) regime. By employing a lift-off process, we fabricated 2D-periodic arrays of TCO nanodisks and characterized the material's plasmonic properties to evaluate the performance of TCOs as metal substitutes.
A new technique of atomic layer deposition (ALD) has been the first introduced to fabricate PbS-doped silica fiber, whose optical properties are measured. The fiber exhibits photoluminescence property in the wavelength range 1100–1185 nm.
We studied attosecond pulse generation in the carbon K-edge with generalized double optical gating. With the gating effect, the emphasized harmonics in the cut-off region are observed with only 247 μJ driving laser energy.
The structure of a commercial highly birefringent PCF was locally tapered to create a polarizing section. A polarization-depended loss of at least 32.2 dB over a 1-cm length was induced in the 1550-nm region.
The evolution of spatially extended, entangled, anti-correlated two photon states in photonic waveguide arrays that induce classical transverse Anderson localization is theoretically and experimentally investigated.
An XUV continuum supporting 280 as isolated attosecond pulses is generated in argon with a 200 mJ, 17 fs Ti:Sapphire laser using the GDOG technique. The energy of the XUV pulse is over 100 nJ at generation location.
The entanglement level of two initially entangled qubits, subjected to an uncorrelated unital noisy channel is simply manifested by the radii of its Bloch sphere mapping. We demonstrate this relation experimentally using an all-optical setup.
The first experimental demonstration of resonant optical trapping of dielectric particles in a hollow photonic crystal cavity is reported. The existence of mutual interaction between the confined field and the particle is revealed.
We demonstrate a new type of electrically tunable strong coupling between a planar metamaterial layer and an ultra-thin epsilon-near-zero layer made of a doped semiconductor. This can find novel applications in chip-scale infrared optoelectronic devices.
We demonstrate electron diffraction from a polycrystalline aluminum foil sample using 100 keV electron bunches generated from laser-driven plasma wakefield. Our proof-of-principle experiment shows the potential of high repetition rate, low energy electron pulses from laser wakefield accelerators for ultrafast electron diffraction applications.
An optical fiber taper placed in the near field of a “split-beam” photonic crystal nanobeam cavity with a physical gap at the cavity center breaks the system's vertical dielectric symmetry, enabling selective optomechanical coupling to multiple cantilever resonances using a single optical nanocavity mode.
We have built and tested the first experimental demonstration of a photonic quantum digital signature test-bed. We will present a case for quantum digital signatures, overview of the protocol, description of the system and results.
We report the first demonstration of CW-pumped correlated photon-pair generation in an AlGaAs waveguide with a coincidence-to-accidental ratio > 100. This is about two orders of magnitude greater than previously reported in AlGaAs waveguides.
The effect of third-order dispersion in a Hong-Ou-Mandel interferometer is investigated using a ZnSe crystal as a dispersive medium. A value for the TOD coefficient of ZnSe is extracted which is consistent with literature values.
A photoconductive terahertz detector based on plasmonic contact electrodes is experimentally demonstrated. Incorporating plasmonic contact electrodes mitigates the inherent tradeoff between high quantum-efficiency and ultrafast operation, enabling more than 30 times higher terahertz detection sensitivities.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.