Patents by Inventor Yonathan Japha
Yonathan Japha 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).
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Patent number: 9443630Abstract: Systems and methods for coherent splitting of a matter wave for supporting a variety of applications and fundamental studies in the fields of matter wave momentum splitting and interferometry. The systems and methods utilize pulsed field gradients and Rabi transitions between internal energy states. A matter wave is transformed into a superposition of spatially separated propagating wavepackets and spatial interference fringes with measurable phase repeatability were measured as a proof for the coherence of the splitting. A continuously tunable wide range of momentum difference between wavepackets may be received by controlling only the duration and strength of the pulsed gradients. Achieving high phase stability and various splitting schemes using different geometries, fields and energy levels, as well as various interferometric applications are disclosed.Type: GrantFiled: August 8, 2013Date of Patent: September 13, 2016Assignee: Ben Gurion University of the Negev Research and Development AuthorityInventors: Ron Folman, Yonathan Japha, Shimon Machluf
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Publication number: 20150200028Abstract: Systems and methods for coherent splitting of a matter wave for supporting a variety of applications and fundamental studies in the fields of matter wave momentum splitting and interferometry. The systems and methods utilize pulsed field gradients and Rabi transitions between internal energy states. A matter wave is transformed into a superposition of spatially separated propagating wavepackets and spatial interference fringes with measurable phase repeatability were measured as a proof for the coherence of the splitting. A continuously tunable wide range of momentum difference between wavepackets may be received by controlling only the duration and strength of the pulsed gradients. Achieving high phase stability and various splitting schemes using different geometries, fields and energy levels, as well as various interferometric applications are disclosed.Type: ApplicationFiled: August 8, 2013Publication date: July 16, 2015Inventors: Ron Folman, Yonathan Japha, Shimon Machluf
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Patent number: 8717678Abstract: The present invention provides an interferometer apparatus comprising a matter-wave guide enclosing an area, wherein a flux of particles may be guided in the matter-wave guide in at least two opposite paths, the matter-wave guide is rotatable relative to an inertial frame of reference; a first beam splitter to split the first beam to at least second and third beams, each of the second and third beams is to be guided in another path of the two opposite paths; and a second beam splitter allowing particles of the second and third beams to exit the matter-wave guide in a first probability and to stay in the matter-wave guide in a second probability.Type: GrantFiled: January 6, 2013Date of Patent: May 6, 2014Assignee: Ben Gurion University of the Negev, Research and Development AuthorityInventors: Yonathan Japha, Ron Folman, Yshai Avishai
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Patent number: 8351121Abstract: The present invention provides an interferometer apparatus comprising a matter-wave guide enclosing an area, wherein a flux of particles may be guided in the matter-wave guide in at least two opposite paths, the matter-wave guide is rotatable relative to an inertial frame of reference; a first beam splitter to split the first beam to at least second and third beams, each of the second and third beams is to be guided in another path of the two opposite paths; and a second beam splitter allowing particles of the second and third beams to exit the matter-wave guide in a first probability and to stay in the matter-wave guide in a second probability.Type: GrantFiled: December 26, 2007Date of Patent: January 8, 2013Assignee: Ben Gurion University of the Negev Research and Development AuthorityInventors: Yonathan Japha, Ron Folman, Yshai Avishai
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Patent number: 8247760Abstract: Ultra-cold (nano-Kelvin) neutral atoms can be trapped, manipulated, and measured, using integrated current carrying micro-structures on a nearby surface (Atom Chips). This can be utilized for the realization of ultra-sensitive sensors and quantum computation devices based on the quantum mechanical properties of the trapped atoms. However, harmful processes arise from the interactions between the atoms and the nearby surface. According to the present invention these harmful processes can be highly suppressed by using electrically anisotropic materials. It is shown that time-independent trapping potential corrugation leading to fragmentation of the trapped atom cloud can be suppressed, and that time dependent noise processes arising from the coupling of atoms to the nearby surface, and leading to loss of atoms from the trap, heating and loss of coherence can be significantly reduced.Type: GrantFiled: August 11, 2008Date of Patent: August 21, 2012Assignee: Ben-Gurion University of the NegevInventors: Tal David, Yonathan Japha, Valery Dikovsky, Ron Folman
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Publication number: 20110038053Abstract: The present invention provides an interferometer apparatus comprising a matter-wave guide enclosing an area, wherein a flux of particles may be guided in the matter-wave guide in at least two opposite paths, the matter-wave guide is rotatable relative to an inertial frame of reference; a first beam splitter to split the first beam to at least second and third beams, each of the second and third beams is to be guided in another path of the two opposite paths; and a second beam splitter allowing particles of the second and third beams to exit the matter-wave guide in a first probability and to stay in the matter-wave guide in a second probability.Type: ApplicationFiled: December 26, 2007Publication date: February 17, 2011Inventors: Yonathan Japha, Ron Folman, Yshai Avishai
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Publication number: 20080114254Abstract: An optic fiber adapted for ultrasound imaging of the lumen of a vessel comprising: an inner core for transmitting light having an index of refraction that changes responsive to acoustic energy incident thereon; a ring core concentric with the inner core for transmitting light; a cladding material between the inner and ring cores that has an index of refraction smaller than the index of refraction of the material from which the inner core is formed; and at least one acoustic transducer comprising absorbing material formed on the surface of the ring core that absorbs optical energy transmitted along the ring core and generates ultrasound responsive thereto.Type: ApplicationFiled: September 19, 2004Publication date: May 15, 2008Applicant: BIOSCAN LTD.Inventors: Avram Matcovitch, Arkady Khachaturov, Yury Voitsechov, Zvi Bar-Lev, Yonathan Japha, Salah Hasson
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Publication number: 20030020902Abstract: An optical inspection apparatus and method for optical elements. The apparatus comprises a surface profiler in data communication with a computing platform, and utilizes an overlap integral between an expected output field based on the designed profile and the calculated output field based on the measured profile. The overlap integral is utilized in one embodiment to calculate the expected loss of the optical element. In another embodiment, the overlap integral is utilized to calculate the amount of undesired wave function. The method an apparatus are useful for both flat and curved dielectric materials and may be utilized with both reflecting and non-reflecting surfaces.Type: ApplicationFiled: July 2, 2002Publication date: January 30, 2003Inventors: Yonathan Japha, Yehuda Ben-Ami