Horizon 2020 EuPRAXIA design study
8TH INTERNATIONAL PARTICLE ACCELERATOR CONFERENCE (IPAC 2017) 874 (2017)
Blind digital holographic microscopy
ractical Holography XXXI: Materials and Applications; Society of Photo-Optical Instrumentation Engineers (2017)
Abstract:
A blind variant of digital holographic microscopy is presented that removes the requirement for a well-characterized, highly divergent reference beam. This is achieved by adopting an off-axis recording geometry where a sequence of holograms is recorded as the reference is tilted, and an iter ative algorithm that estimates the amplitudes and phases of both beams while simultaneously enhancing the numerical aperture. Numerical simulations have demonstrated the accuracy and robustness of this approach when applied to the coherent imaging problem.Combined visible and near-infrared OPA for wavelength scaling experiments in strong-field physics
(2017)
Combined visible and near-infrared OPA for wavelength scaling experiments in strong-field physics
Proceedings of SPIE SPIE 10088:Nonlinear Frequency Generation and Conversion: Materials and Devices XVI (2017)
Abstract:
We report the operation of an optical parametric amplifier (OPA) capable of producing gigawatt peak-power laser pulses with tunable wavelength in either the visible or near-infrared spectrum. The OPA has two distinct operation modes (i) generation of > 350 μJ, sub 100 fs pulses, tunable between 1250 - 1550 nm; (ii) generation of > 170 μJ, sub 150 fs pulses tunable between 490 - 530 nm. We have recorded high-order harmonic spectra over a wide range of driving wavelengths. This flexible source of femtosecond pulses presents a useful tool for exploring the wavelength-dependence of strong-field phenomena, in both the multi-photon and tunnel ionization regimes.A compact, low cost Marx bank for generating capillary discharge plasmas
Review of Scientific Instruments AIP Publishing 87:093302 (2016)