Near-perfect diffraction grating rhomb

Title: Near-perfect diffraction grating rhomb

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Abstract

A near-perfect grating rhomb enables an output beam to be diffracted to an angle offset from the input beam. The correcting grating is tipped relative to the dispersing grating to provide the offset angle. The correcting grating is further provided with a groove spacing which differs from the dispersing grating groove space by an amount effective to substantially remove angular dispersion in the output beam. A near-perfect grating rhomb has the capability for selective placement in a FEL to suppress sideband instabilities arising from the FEL.

Inventors:

Wantuck, Paul J. ^[1]

(Santa Fe, NM)

Issue Date:: 1990-01-01

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM

OSTI Identifier:: 867644

Patent Number(s):: 4977560

Assignee:: United States of America as represented by United States (Washington, DC) LANL

DOE Contract Number:: W-7405-ENG-36

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: near-perfect; diffraction; grating; rhomb; enables; output; beam; diffracted; angle; offset; input; correcting; tipped; relative; dispersing; provide; provided; groove; spacing; differs; space; amount; effective; substantially; remove; angular; dispersion; capability; selective; placement; suppress; sideband; instabilities; arising; substantially remove; input beam; diffraction grating; output beam; amount effective; grating rhomb; groove spacing; /372/

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                    Wantuck, Paul J. Near-perfect diffraction grating rhomb.  United States: N. p., 1990. 
        Web.

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                    Wantuck, Paul J. Near-perfect diffraction grating rhomb.  United States.

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                    Wantuck, Paul J. Mon .  
        "Near-perfect diffraction grating rhomb".  United States.  https://www.osti.gov/servlets/purl/867644.

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@article{osti_867644,

  title        = {Near-perfect diffraction grating rhomb},

  author       = {Wantuck, Paul J.},

  abstractNote = {A near-perfect grating rhomb enables an output beam to be diffracted to an angle offset from the input beam. The correcting grating is tipped relative to the dispersing grating to provide the offset angle. The correcting grating is further provided with a groove spacing which differs from the dispersing grating groove space by an amount effective to substantially remove angular dispersion in the output beam. A near-perfect grating rhomb has the capability for selective placement in a FEL to suppress sideband instabilities arising from the FEL.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1990},

  month        = {1}

}

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