140 citations · 226 across the 17 of their papers we have counts for
19 papers
Spectrum Phase and Constraints on THz-Optical klystron
Najmeh Mirian
Optical klystrons provide an efficient mechanism for enhancing coherent radiation through laser-induced microbunching and dispersive amplification. In the terahertz (THz) regime an…
Conceptual Design of a Transverse Deflecting Structure for Longitudinal Diagnostics at DALI
Najmeh Mirian
A conceptual design study of a Transverse Deflecting Structure (TDS) for longitudinal beam diagnostics at the DALI accelerator facility is presented. The TDS provides a time-depend…
Short-Pulse High-Power THz Generation Using Optical Klystron FELs: Simulation Results
Najmeh Mirian
The generation of high-power radiation in the terahertz (THz) regime using free-electron lasers (FELs) is challenging due to strong diffraction and pronounced slippage effects. The…
Virtual Pulse Reconstruction Diagnostic for Single-Shot Measurement of Free Electron Laser Radiation Power
Till Korten, Vladimir Rybnikov, Peter Steinbach +1
Accurate characterization of radiation pulse profiles is crucial for optimizing beam quality and enhancing experimental outcomes in Free Electron Laser (FEL) research. In this pape…
Harnessing Machine Learning for Single-Shot Measurement of Free Electron Laser Pulse Power
Till Korten, Vladimir Rybnikov, Mathias Vogt +3
Electron beam accelerators are essential in many scientific and technological fields. Their operation relies heavily on the stability and precision of the electron beam. Traditiona…
Attosecond soft X-ray pulses generated by chirp-dispersed manipulation in an XFEL reveal nonlinear core-electron dynamics in neon
Lars Funke, Markus Ilchen, Svitozar Serkez +59
Free-electron lasers have demonstrated their capability of generating intense attosecond X-ray pulses, which are the key to studying electron dynamics at their natural time scale a…
Generation and Measurement of Ultrashort Free Electron Laser Pulses in Ultraviolet and Soft-X-ray Spectral Regions
Najmeh Mirian
Over the last few years, tremendous progress has been gained in the generation and application of ultrashort radiation pulses. Recently, free-electron lasers generating ultrashort…
Using the LHeC ERL to generate high-energy photons
Najmeh Sadat Mirian, Elham Salehi, Frank Zimmermann
The Large Hadron electron Collider (LHeC) is a proposed future particle physics project colliding 60 GeV electrons from a six-pass recirculating energy-recovery linac (ERL) with 7…
Bright Ångstrom and Picometre Free Electron Laser Based on the LHeC Energy Recovery Linac
Z. Nergiz, N. S. Mirian, A. Aksoy +3
The Large Hadron electron Collider (LHeC) is a proposed future particle-physics project colliding 60 GeV electrons from a six-pass recirculating energy-recovery Linac (ERL) with 7…
Characterization of soft X-ray echo-enabled harmonic generation free-electron laser pulses in the presence of incoherent energy modulations
N. S. Mirian, G. Perosa, E. Hemsing +14
Echo-enabled harmonic generation free-electron lasers (EEHG FELs) are promising candidates to produce fully coherent soft x-ray pulses by virtue of efficient high harmonic frequenc…
High repetition rate and coherent Free-Electron Laser in the tender X-rays based on the Echo-Enabled Harmonic Generation of an Ultra-Violet Oscillator pulse
N. S. Mirian, M. Opromolla, G. Rossi +2
Fine time-resolved analysis of matter - i.e. spectroscopy and photon scattering - in the linear response regime requires a fs-scale pulsed, high repetition rate, fully coherent X-r…
Microbunching Instability Characterisation via Temporally Modulated Laser Pulses
A. D. Brynes, I. Akkermans, E. Allaria +19
High-brightness electron bunches, such as those generated and accelerated in free-electron lasers (FELs), can develop small-scale structure in the longitudinal phase space. This ca…
A new method for measuring angle-resolved phases in photoemission
Daehyun You, Kiyoshi Ueda, Elena V. Gryzlova +33
Quantum mechanically, photoionization can be fully described by the complex photoionization amplitudes that describe the transition between the ground state and the continuum state…
Tracking Attosecond Electronic Coherences Using Phase-Manipulated Extreme Ultraviolet Pulses
Andreas Wituschek, Lukas Bruder, Enrico Allaria +31
The recent development of ultrafast extreme ultraviolet (XUV) coherent light sources bears great potential for a better understanding of the structure and dynamics of matter. Promi…
Beyond the Limits of 1D Coherent Synchrotron Radiation
A. D. Brynes, P. Smorenburg, I. Akkermans +21
An understanding of collective effects is of fundamental importance for the design and optimisation of the performance of modern accelerators. In particular, the design of an accel…
Efficiency enhancement of a harmonic lasing free-electron laser
Elham Salehi, Behrouz Maraghechi, Najmeh Sadat Mirian
The harmonic lasing free-electron laser amplifier, in which two wigglers is employed in order for the fundamental resonance of the second wiggler to coincide with the third harmoni…
Three-dimensional Simulation of Thermal Harmonic Lasing FEL with Detuning of the Fundamental
Elham Salehi, Behrouz Maraghechi, Najmeh Sadat Mirian
Detuning of the fundamental is a way to enhance harmonic generation . By this method, the wiggler is composed of two segments in such a way that the fundamental resonance of the se…
Present status of source development station at UVSOR-III
Najmeh Sadat Mirian, Jun-ichiro Yamazaki, Kenji Hayashi +6
Construction and development of a source development station are in progress at UVSOR-III, a 750 MeV electron storage ring. It is equipped with an optical klystron type undulator s…
Colored Correlated Noises in Growth Model of Tumor
Najmeh Sadat Mirian
Stochastic resonance induced by external factor is considering to investigate the complex dynamics of tumor. The surrounding environment and the treatment effects on the tumor grow…