Abstract: Ablation of holes having diameters as small as 82 nm and having clean walls was obtained in a poly(methyl methacrylate) on a silicon substrate by focusing pulses from a Ne-like Ar, 46.9 nm wavelength, capillary-discharge laser using a freestanding Fresnel zone plate diffracting into third order is described. Spectroscopic analysis of light from the ablation has also been performed. These results demonstrate the use of focused coherent EUV/SXR light for the direct nanoscale patterning of materials.
Type:
Grant
Filed:
August 23, 2010
Date of Patent:
April 26, 2011
Assignees:
Colorado State University Research Foundation, The Regents of University of California, JMAR Technologies, Inc.
Inventors:
Carmen S. Menoni, Jorge J. Rocca, Georgiy Vaschenko, Scott Bloom, Erik H. Anderson, Weilun Chao, Oscar Hemberg
Abstract: Ablation of holes having diameters as small as 82 nm and having clean walls was obtained in a poly(methyl methacrylate) on a silicon substrate by focusing pulses from a Ne-like Ar, 46.9 nm wavelength, capillary-discharge laser using a freestanding Fresnel zone plate diffracting into third order is described. Spectroscopic analysis of light from the ablation has also been performed. These results demonstrate the use of focused coherent EUV/SXR light for the direct nanoscale patterning of materials.
Type:
Application
Filed:
August 23, 2010
Publication date:
February 24, 2011
Applicants:
Colorado State University Research Foundation, JMAR Technologies, Inc., The Regents of University of California
Inventors:
Carmen S. Menoni, Jorge J. Rocca, Georgiy Vaschenko, Scott Bloom, Erik H. Anderson, Weilun Chao, Oscar Hemberg
Abstract: A scanning boom microscope comprises an optical axis that can be varied into any axis or direction relative to a circular displacement about an optical boom that supports the scanning boom microscope's objective in free space. Accordingly, scanning boom microscope can be positioned to observe free standing samples away from the microscope base.
Type:
Grant
Filed:
January 20, 2006
Date of Patent:
July 21, 2009
Assignee:
JMAR Technologies, Inc.
Inventors:
Charles S. McLeod, Robert A. Selzer, Yunsheng Ma
Abstract: A particle detection system uses a reflective optic comprising a curved surface to detect high angle scattered light generated by a particle in a liquid medium, when a laser beam is incident on the particle. When the particles transit the laser beam, light is scattered in all directions and is described by MIE scattering theory for particles about the size of the wavelength of light and larger or Rayleigh Scattering when the particles are smaller than the wavelength of light. By using the reflective optic, the scattered light can be detected over angles that are greater than normally obtainable.
Type:
Grant
Filed:
May 2, 2006
Date of Patent:
July 21, 2009
Assignee:
JMAR Technologies, Inc.
Inventors:
Scott H. Bloom, Victor J. Chan, Steven A. Cashion
Abstract: A particle detection system to identify and classify particles is programmed to capture digitized images of the particle generated by directing a light source through a fluid that includes the particle. The particle scatters the light and the scattered light is detected using a detector. The detector creates a digital signal corresponding to the particle, which is used by the system to generate biological optical signal. This biological optical signal can then be used to classify the event, or particle.
Type:
Grant
Filed:
October 5, 2006
Date of Patent:
June 30, 2009
Assignee:
JMAR Technologies, Inc.
Inventors:
John A. Adams, Kristina M. Crousore, Cherish K. Teters, Oscar Hemberg
Abstract: A particle detection system to identify and classify particles is programmed to capture digitized images of the particle generated by directing a light source through a fluid that includes the particle. The particle scatters the light and the scattered light is detected using a detector. The detector creates a digital signal corresponding to the particle, which is used by the system to generate Bio-Optical Signature. This Bio-Optical Signature can then be used to classify the event, or particle. Count rate and trends of the classified particles are monitored to detect a change that is representative of the overall health safety of the water or by knowing the levels of bacteria in process water, such as Reverse Osmosis (RO) feed water, reject brine, and product water, the operator may better monitor the life and condition of the RO membrane.
Type:
Grant
Filed:
November 29, 2006
Date of Patent:
June 23, 2009
Assignee:
JMAR Technologies, Inc.
Inventors:
John A. Adams, Kristina M. Crousore, Cherish K. Teters, John Ricardi, David McCarty, Michael P. Tutrow
Abstract: A particle detection system to identify and classify particles is programmed to capture digitized images of the particle generated by directing a light source through a fluid that includes the particle. The particle scatters the light and the scattered light is detected using a detector. The detector creates a digital signal corresponding to the particle, which is used by the system to generate a Bio-Optical Signature. This Bio-Optical Signature can then be used to classify the event, or particle. A count rate of the classified particles is monitored to detect a change that is representative of a toxin attack.
Type:
Grant
Filed:
November 29, 2006
Date of Patent:
April 14, 2009
Assignee:
JMAR Technologies, Inc.
Inventors:
John A. Adams, Kristina M. Crousore, Cherish K. Teters, John Ricardi, David L. McCarty, Michael Tutrow
Abstract: A particle detection system to identify and classify particles is programmed to capture digitized images of the particle generated by directing a light source through a fluid that includes the particle. The particle scatters the light and the scattered light is detected using a detector. The detector creates a digital signal corresponding to the particle, which is used by the system to generate a Bio-Optical Signature. This Bio-Optical Signature can then be used to classify the event, or particle. A count rate of the classified particles is monitored to detect a change that is representative of a toxin attack.
Type:
Application
Filed:
November 29, 2006
Publication date:
August 23, 2007
Applicant:
JMAR TECHNOLOGIES, INC.
Inventors:
John Adams, Kristina Crousore, Cherish Teters, John Ricardi, David McCarty, Michael Tutrow
Abstract: A particle detection system to identify and classify particles is programmed to capture digitized images of the particle generated by directing a light source through a fluid that includes the particle. The particle scatters the light and the scattered light is detected using a detector. The detector creates a digital signal corresponding to the particle, which is used by the system to generate Bio-Optical Signature. This Bio-Optical Signature can then be used to classify the event, or particle. Count rate and trends of the classified particles are monitored to detect a change that is representative of the overall health safety of the water or by knowing the levels of bacteria in process water, such as Reverse Osmosis (RO) feed water, reject brine, and product water, the operator may better monitor the life and condition of the RO membrane.
Type:
Application
Filed:
November 29, 2006
Publication date:
August 23, 2007
Applicant:
JMAR TECHNOLOGIES, INC.
Inventors:
John Adams, Kristina Crousore, Cherish Teters, John Ricardi, David McCarty, Michael Tutrow
Abstract: A particle detection system to identify and classify particles is programmed to capture digitized images of the particle generated by directing a light source through a fluid that includes the particle. The particle scatters the light and the scattered light is detected using a detector. The detector creates a digital signal corresponding to the particle, which is used by the system to generate biological optical signal. This biological optical signal can then be used to classify the event, or particle.
Type:
Application
Filed:
October 5, 2006
Publication date:
June 28, 2007
Applicant:
JMAR Technologies, Inc.
Inventors:
John Adams, Kristina Crousore, Cherish Teters, Oscar Hemberg