Timothy P. Frazer
YOU?
Author Swipe
View article: A neural network-based synthetic diagnostic of laser-accelerated proton energy spectra
A neural network-based synthetic diagnostic of laser-accelerated proton energy spectra Open
Machine learning can revolutionize the development of laser-plasma accelerators by enabling real-time optimization, predictive modeling and experimental automation. Given the broad range of laser and plasma parameters and shot-to-shot vari…
View article: A scintillating fiber imaging spectrometer for active characterization of laser-driven proton beams – ERRATUM
A scintillating fiber imaging spectrometer for active characterization of laser-driven proton beams – ERRATUM Open
View article: A scintillating fiber imaging spectrometer for active characterization of laser-driven proton beams
A scintillating fiber imaging spectrometer for active characterization of laser-driven proton beams Open
Next generation high-power laser facilities are expected to generate hundreds-of-MeV proton beams and operate at multi-Hz repetition rates, presenting opportunities for medical, industrial and scientific applications requiring bright pulse…
View article: Perspectives on laser-plasma physics in the relativistic transparency regime
Perspectives on laser-plasma physics in the relativistic transparency regime Open
With the advent of multi-petawatt lasers, the relativistic transparency regime of laser-plasma interactions becomes readily accessible for near-solid density targets. Initially opaque targets that undergo relativistic self-induced transpar…
View article: High order modes of intense second harmonic light produced from a plasma aperture
High order modes of intense second harmonic light produced from a plasma aperture Open
Because of their ability to sustain extremely high-amplitude electromagnetic fields and transient density and field profiles, plasma optical components are being developed to amplify, compress, and condition high-power laser pulses. We rec…
View article: Influence of spatial-intensity contrast in ultraintense laser–plasma interactions
Influence of spatial-intensity contrast in ultraintense laser–plasma interactions Open
Increasing the intensity to which high power laser pulses are focused has opened up new research possibilities, including promising new approaches to particle acceleration and phenomena such as high field quantum electrodynamics. Whilst th…
View article: Spectrally peaked proton beams shock accelerated from an optically\n shaped overdense gas jet by a near-infrared laser
Spectrally peaked proton beams shock accelerated from an optically\n shaped overdense gas jet by a near-infrared laser Open
We report on the generation of impurity-free proton beams from an overdense\ngas jet driven by a near-infrared laser ($\\lambda_L=1.053$ $\\mathrm{\\mu} m$).\nThe gas profile was shaped prior to the interaction using a controlled\nprepulse…
View article: Spectrally peaked proton beams shock accelerated from an optically shaped overdense gas jet by a near-infrared laser
Spectrally peaked proton beams shock accelerated from an optically shaped overdense gas jet by a near-infrared laser Open
We report on the generation of impurity-free proton beams from an overdense gas jet driven by a near-infrared laser ($λ_L=1.053$ $\mathrmμ m$). The gas profile was shaped prior to the interaction using a controlled prepulse. Without this o…
View article: Enhanced laser intensity and ion acceleration due to self-focusing in relativistically transparent ultrathin targets
Enhanced laser intensity and ion acceleration due to self-focusing in relativistically transparent ultrathin targets Open
Laser-driven proton acceleration from ultrathin foils is investigated experimentally using f/3 and f/1 focusing. Higher energies achieved with f/3 are shown via simulations to result from self-focusing of the laser light in expanding foils…