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4 results on '"Wayne Polzin"'

1. The LCLS-II Photo-Injector Drive Laser System

Author

Alan Fry, A. Miahnahri, Sharon Vetter, Stefan Droste, S. A. Edstrom, F. Zhou, Sasha Gilevich, Michael Greenberg, Randy Lemons, Wayne Polzin, Shawn Alverson, and Sergio Carbajo

Subjects
Materials science, business.industry, 02 engineering and technology, 021001 nanoscience & nanotechnology, medicine.disease_cause, Laser, 01 natural sciences, Cathode, Photo injector, Power (physics), law.invention, 010309 optics, Optics, law, 0103 physical sciences, medicine, Beam shaping, Radio frequency, 0210 nano-technology, business, Ultraviolet, Laser beams
Abstract

We present the new drive laser system for the photo-injector of the LCLS-II XFEL at SLAC, including the first commissioning results and challenges encountered due to high power, high repetition rate ultraviolet laser operation.

Published
2020

2. Development of a THz Pump MeV Ultrafast Electron Diffraction Probe Apparatus

Author

Xiaozhe Shen, Jie Yang, Aaron M. Lindenberg, Xijie Wang, Steven Edstrom, Ehren M. Mannenbach, Suji Park, Benjamin K. Ofori-Okai, Alexander H. Reid, Siegfried Glenzer, Wayne Polzin, Matthias C. Hoffmann, Qiang Zheng, Stephen Weathersby, and Renkai Li

Subjects
Diffraction, Materials science, business.industry, Terahertz radiation, Exciton, Ultrafast electron diffraction, Lithium niobate, Physics::Optics, Electron, Ptychography, chemistry.chemical_compound, chemistry, Electron diffraction, Optoelectronics, business
Abstract

We demonstrate a terahertz pump-ultrafast electron diffraction probe apparatus. Using the instrument, we show that intense focused THz pulses can characterize ultrashort electron bunches.

Published
2018

3. A terahertz pump mega-electron-volt ultrafast electron diffraction probe apparatus at the SLAC Accelerator Structure Test Area facility

Author

Alexander H. Reid, Wayne Polzin, Matthias C. Hoffmann, S. Edstrom, Suji Park, S. H. Glenzer, Qiang Zheng, Xijie Wang, Benjamin K. Ofori-Okai, S. P. Weathersby, Xiaozhe Shen, Jie Yang, Mannebach Ehren, Renkai Li, R.K. Jobe, Aaron M. Lindenberg, and M. Zajac

Subjects
Materials science, business.industry, Terahertz radiation, Ultrafast electron diffraction, Physics::Optics, 02 engineering and technology, Electron, 021001 nanoscience & nanotechnology, Laser, 01 natural sciences, law.invention, Optics, Electron diffraction, law, 0103 physical sciences, Femtosecond, Physics::Accelerator Physics, 010306 general physics, 0210 nano-technology, business, Instrumentation, Ultrashort pulse, Mathematical Physics, Excitation
Abstract

We describe a new experimental setup capable of measuring structural dynamics following intense terahertz excitation. This system, developed at the SLAC Accelerator Structure Test Area facility, uses a high-energy ultrafast laser to produce intense terahertz pulses and femtosecond electron bunches that are accelerated to mega-electron-volt kinetic energies. The focused terahertz pulses have electric fields in excess of 600 kV/cm, and the resulting structural dynamics can be followed by electron diffraction. We also present some examples demonstrating its implementation where interactions between the THz pulses and the electron bunch are used to characterize the spatial and temporal characteristics of the THz field.

Published
2018

4. Optical laser systems at the Linac Coherent Light Source

Author

William E. White, Wayne Polzin, Alan Fry, Franz Tavella, S. A. Edstrom, Daniel Ratner, Eduardo Granados, Ryan Coffee, A. Miahnahri, James M. Glownia, Sharon Vetter, Despina Milathianaki, P. Hering, Sasha Gilevich, Marc Welch, Joseph Robinson, Matthias C. Hoffmann, and Michael P. Minitti

Subjects
Nuclear and High Energy Physics, Energy transfer, Physics::Optics, Pump probe, Crystallography, X-Ray, Electromagnetic radiation, Linear particle accelerator, California, law.invention, Optics, law, Instrumentation, Free-Electron Lasers, Lighting, Physics, FEL, Radiation, business.industry, Lasers, X-Rays, Spectrometry, X-Ray Emission, Particle accelerator, Equipment Design, Laser, Equipment Failure Analysis, Energy Transfer, pump–probe, Physics::Accelerator Physics, Optoelectronics, Experimental methods, Particle Accelerators, ultrafast lasers, business, Ultrashort pulse
Abstract

This manuscript serves as a reference to describe the optical laser sources and capabilities at the Linac Coherent Light Source., Ultrafast optical lasers play an essential role in exploiting the unique capabilities of recently commissioned X-ray free-electron laser facilities such as the Linac Coherent Light Source (LCLS). Pump–probe experimental techniques reveal ultrafast dynamics in atomic and molecular processes and reveal new insights in chemistry, biology, material science and high-energy-density physics. This manuscript describes the laser systems and experimental methods that enable cutting-edge optical laser/X-ray pump–probe experiments to be performed at LCLS.

Published
2014

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