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Currently an integrated photonic beamformer for electronically-steered Ku-band phased array antenna (PAA) system for satellite communications is being developed within a Dutch Point One R&D Innovation Project “Broadband Satellite Communication Services on High-Speed Transport Vehicles”, targeting instantaneous reception of the full Ku-band (10.7–12.75 GHz), squint-free and seamless beam steering,...
The optical solitons that play the role of information carriers, are moving, requiring careful experimental timing to achieve the desired logic operation. In contrast, self-induced transparency (SIT) is a strong resonant nonlinear effect, supporting the propagation of optical solitons and are usually associated with a two-level system. By the appropriate application of light fields, the optical soliton,...
Label-free imaging modalities, such as coherent anti-Stokes Raman spectroscopy (CARS) microscopy, have demonstrated high contrast levels and video rate image acquisition times. CARS is a nonlinear process where two lasers coherently populate a vibrational state due to a two-photon resonant interaction. A probe laser coherently depopulates the excited state, generating light at the anti-Stokes frequency,...
We present a method to determine particle size distributions in powders, based on the polarization dependent second harmonic generation (SHG). Unlike existing methods, dilution is not required and is largely insensitive to the optical alignment.
The possibility of obtaining sub-diffraction limited spatial resolution with label-free imaging, based on coherent anti-Stokes Raman (CARS) microscopy, is investigated numerically. Like STED, CARS emission is strongly suppressed by applying an additional light field.
The nonlinear optical behavior of powdered systems remains difficult to model because the spatial intensity distribution. We present a novel way to calculate time dependent second harmonic generation in powders and resulting autocorrelation signals.
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