Patents by Inventor Benjamin Lax

Benjamin Lax has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Microwave/far infrared cavities and waveguides using high temperature superconductors
    Patent number: 5231073
    Abstract: The structures for confining or guiding high frequency electromagnetic radiation have surfaces facing the radiation constructed of high temperature superconducting materials, that is, materials having critical temperatures greater than approximately 35.degree. K. The use of high temperature superconductors removes the constraint of the relatively low energy gaps of conventional, low temperature superconductors which precluded their use at higher frequencies. The high temperature superconductors also provide larger thermal margins and more effective cooling. Devices which will benefit from the structures of the invention include microwave cavities, millimeter-wave/far infrared cavities, gyrotron cavities, mode converters, accelerators and free electron lasers, and waveguides.
    Type: Grant
    Filed: October 18, 1989
    Date of Patent: July 27, 1993
    Assignee: Massachusetts Institute of Technology
    Inventors: Daniel R. Cohn, Leslie Bromberg, Benjamin Lax, Ward D. Halverson, Paul P. Woskov
  • Microwave/far infrared cavities and waveguides using high temperature superconductors
    Patent number: 4918049
    Abstract: The structures for confining or guiding high frequency electromagnetic radiation have surfaces facing the radiation constructed of high temperature superconducting materials, that is, materials having critical temperatures greater than approximately 35.degree.K. The use of high temperature superconductors removes the constraint of the relatively low energy gaps of conventional, low temperature superconductors which precluded their use at high frequencies. The high temperature superconductors also provide larger thermal margins and more effective cooling. Devices which will benefit from the structures of the invention include microwave cavities, millimeter-wave/far infrared cavities, gyrotron cavities, mode converters, accelerators and free electron lasers, and waveguides.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: April 17, 1990
    Assignee: Massachusetts Institute of Technology
    Inventors: Daniel R. Cohn, Leslie Bromberg, Benjamin Lax, Ward D. Halverson, Paul P. Woskov
  • High power gas laser
    Patent number: 4330761
    Abstract: A gas laser adapted to produce laser radiation in the far infrared region of the electromagnetic spectrum, but adapted, as well, to produce radiation in the infrared, the near infrared, the millimeter and the microwave regions. The laser employs a zig-zag pumping scheme which serves to excite the gas uniformly and thus enhance transfer of pump energy into laser energy.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: May 18, 1982
    Assignee: Massachusetts Institute of Technology
    Inventors: Daniel R. Cohn, Benjamin Lax, Kenneth J. Button
  • Method of and apparatus for generating tunable coherent radiation by noncollinear phase-matched sum-difference frequency optical mixing
    Patent number: 4063105
    Abstract: Schemes for generating tunable coherent radiation by noncollinear phase-matched sum-difference frequency optical mixing in a nonlinear medium for use, by way of illustration, in connection with uranium 235-isotope separation in UF.sub.6.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: December 13, 1977
    Assignee: Massachusetts Institute of Technology
    Inventors: Roshan L. Aggarwal, Neville K. S. Lee, Benjamin Lax
  • Method of and apparatus for generating tunable coherent radiation by nonlinear light mixing in systems having folded noncollinear geometries
    Patent number: 3983406
    Abstract: Schemes for generating tunable coherent radiation by light mixing wherein input light radiation from one or more lasers is mixed in a nonlinear solid or a gaseous medium by using folded noncollinear geometry.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: September 28, 1976
    Assignee: Massachusetts Institute of Technology
    Inventors: Benjamin Lax, Roshan L. Aggarwal, Neville K. S. Lee