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Achieving photon-photon interactions is one of the main objectives of the quantum information technology community, since these interactions provide the basis for deterministic quantum gates with high fidelity. In the last few years new milestones in creating phase-shifts [1] and quantum gates[2] have been achieved. Researching resource-moderate experimental realizations for the future development...
Label-free optical microscopy plays an important role in biological research. Coherent Raman microscopy combines three-dimensional resolution and fast image acquisition with molecular selectivity based on the vibrational spectrum of the sample. During the last years stimulated Raman scattering (SRS) microscopy has become an important technique in this framework since it does not display an electronic...
Active modulation of light with large optical bandwidths (∼100 nm [1]) is required in photonic devices, such as modulators for fiber communications [1] and saturable absorbers for ultrafast pulse generation [2,3]. Present modulators use expensive materials, (e.g. LiNbO3 [4], III-V semiconductors [5], and Ge on silicon-on-insulator (SOI) [6]), and are limited by narrowband operation (∼20 nm for quantum-confined...
Ghost imaging is a novel imaging technique based on correlation measurements between a structured illumination pattern (the reference) and the total intensity transmitted or reflected by an object [1]. The reference illumination patterns may be either randomly generated by a spatially incoherent light source, or pre-programmed e.g. with a spatial light modulator. Light transmitted (or reflected) by...
High harmonics generated on solid surfaces (SHHG) promise a much higher efficiency compared to harmonics generated in gases. In case of ROM (Relativistically Oscillating Mirror) mechanism [1], conversion efficiencies up to the percent level are predicted [2]. An interesting property of ROM is that the maximum photon energy scales with the laser intensity. In addition an isolated attosecond (as) pulse...
Easily tunable photonic and especially plasmonic devices have been an elusive and highly anticipated goal for the scientific community. Graphene is a promising candidate for covering this gap in the field of plasmonics and offering new exciting physics as well as commercial devices. The band structure of Graphene allows for dynamical and efficient conductivity tuning providing easy control of electrical...
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