Practical method and device for enhancing pulse contrast ratio for lasers and electron accelerators

Zhang, Shukui; Wilson, Guy

Title: Practical method and device for enhancing pulse contrast ratio for lasers and electron accelerators

Full Record
Other Related Research

Abstract

An apparatus and method for enhancing pulse contrast ratios for drive lasers and electron accelerators. The invention comprises a mechanical dual-shutter system wherein the shutters are placed sequentially in series in a laser beam path. Each shutter of the dual shutter system has an individually operated trigger for opening and closing the shutter. As the triggers are operated individually, the delay between opening and closing first shutter and opening and closing the second shutter is variable providing for variable differential time windows and enhancement of pulse contrast ratio.

Inventors:: Zhang, Shukui; Wilson, Guy

Issue Date:: 2014-09-23

Research Org.:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1159842

Patent Number(s):: 8842703

Application Number:: 13/385,728

Assignee:: Jefferson Science Associates, LLC (Newport News, VA)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT

Show more

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
H01S3/0085 - {Modulating the output, i.e. the laser beam is modulated outside the laser cavity}
H01S3/005 - {Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
H01S3/1106 - {Mode locking}

Show less

DOE Contract Number:: AC05-06OR23177

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Zhang, Shukui, and Wilson, Guy. Practical method and device for enhancing pulse contrast ratio for lasers and electron accelerators.  United States: N. p., 2014. 
        Web.

Copy to clipboard


                    Zhang, Shukui, & Wilson, Guy. Practical method and device for enhancing pulse contrast ratio for lasers and electron accelerators.  United States.

Copy to clipboard


                    Zhang, Shukui, and Wilson, Guy. Tue .  
        "Practical method and device for enhancing pulse contrast ratio for lasers and electron accelerators".  United States.  https://www.osti.gov/servlets/purl/1159842.

Copy to clipboard


                    
@article{osti_1159842,

  title        = {Practical method and device for enhancing pulse contrast ratio for lasers and electron accelerators},

  author       = {Zhang, Shukui and Wilson, Guy},

  abstractNote = {An apparatus and method for enhancing pulse contrast ratios for drive lasers and electron accelerators. The invention comprises a mechanical dual-shutter system wherein the shutters are placed sequentially in series in a laser beam path. Each shutter of the dual shutter system has an individually operated trigger for opening and closing the shutter. As the triggers are operated individually, the delay between opening and closing first shutter and opening and closing the second shutter is variable providing for variable differential time windows and enhancement of pulse contrast ratio.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {9}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Devices and methods for creating plasma channels for laser plasma acceleration

Patent Leemans, Wim; Swanson, Kelly; Mao, Hann-Shin; ...

This disclosure provides systems, methods, and apparatus related to devices and methods for creating hollow, near-hollow, and parabolic plasma channels. In one aspect, a device includes a block of material and a cooling system. The block of material defines a channel having a cylindrical shape and having a first open end and a second open end. An axis of the channel lies along a straight line. The block of material further defines a first gas port and a second gas port. The first gas port and the second gas port are in fluid communication with channel. The cooling system ismore » « less
Full Text Available
Chirped pulse inverse free-electron laser vacuum accelerator

Patent Hartemann, Frederic V [Dublin, CA]; Baldis, Hector A [Pleasanton, CA]; Landahl, Eric C [Walnut Creek, CA]

A chirped pulse inverse free-electron laser (IFEL) vacuum accelerator for high gradient laser acceleration in vacuum. By the use of an ultrashort (femtosecond), ultrahigh intensity chirped laser pulse both the IFEL interaction bandwidth and accelerating gradient are increased, thus yielding large gains in a compact system. In addition, the IFEL resonance condition can be maintained throughout the interaction region by using a chirped drive laser wave. In addition, diffraction can be alleviated by taking advantage of the laser optical bandwidth with negative dispersion focusing optics to produce a chromatic line focus. The combination of these features results in a compact,more » « less
Full Text Available
Method and device for a high temperature vacuum-safe solder resist utilizing laser ablation of solderable surfaces for an electronic module assembly

Patent Stabach, Jennifer; McPherson, Brice; O'Neal, Chad B.

A process for manufacturing an electronic component having attaches includes providing a first component having a first attach, forming trenches on a portion of the first attach with a laser to form a solder stop, and providing a second component comprising a second attach. The process further includes providing solder between the first attach and the second attach to form a connection between the first component and the second component, where the trenches contain the solder to a usable area. A device produced by the process is disclosed as well.
Full Text Available
Method and device for a high temperature vacuum-safe solder stop utilizing laser processing of solderable surfaces for an electronic module assembly

Patent Stabach, Jennifer; McPherson, Brice; O'Neal, Chad B.

A process for manufacturing an electronic component having attaches includes providing a first component having a first attach, forming trenches on a portion of the first attach with a laser to form a solder stop, and providing a second component comprising a second attach. The process further includes providing solder between the first attach and the second attach to form a connection between the first component and the second component, where the trenches contain the solder to a usable area. A device produced by the process is disclosed as well.
Full Text Available
Methods, systems, and computer-readable storage media for enhanced phase-contrast x-ray imaging

Patent Miller, Erin A.; Jacob, Richard E.; Deshmukh, Nikhil S.; ...

Systems and methods that directly image attenuation-based object grid, use a source grid to improve imaging of the object grid using a high-energy polychromatic source, and use a detector grid having gratings oriented substantially orthogonally to that of the object grid, can address artifacts and beam hardening effects that limit the quality and discriminatory power of high-energy x-ray imaging that includes phase contrast.
Full Text Available

Similar Records