Patents by Inventor Alexander Apolonskiy
Alexander Apolonskiy 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: 10101268Abstract: A method of measuring a spectral response of a biological sample (1), comprises the steps generation of probe light having a primary spectrum, irradiation of the sample (1) with the probe light, including an interaction of the probe light and the sample (1), and spectrally resolved detection of the probe light having a modified spectrum, which deviates from the primary spectrum as a result of the interaction of the probe light and the sample (1), said modified spectrum being characteristic of the spectral response of the sample (1), wherein the probe light comprises probe light pulses (2) being generated with a fs laser source device (10). Furthermore, a spectroscopic measuring apparatus is described, which is configured for measuring a spectral response of a biological sample (1).Type: GrantFiled: December 18, 2015Date of Patent: October 16, 2018Assignees: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V., Ludwig-Maximilians-Universitaet MuenchenInventors: Alexander Apolonskiy, Ioachim Pupeza, Ferenc Krausz, Ernst Fill
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Patent number: 10042231Abstract: A method of creating difference frequency (DF) laser pulses (1) by difference frequency generation (DFG) comprises the steps of providing ultrashort laser pulses (2) having a spectral bandwidth corresponding to a Fourier limit of below 50 fs and containing first spectral components and second spectral components having larger frequencies than the first spectral components, and driving a DFG process by the ultrashort laser pulses (2) in an optically non-linear crystal (10), wherein the DF laser pulses (1) are generated in the crystal (10) by difference frequencies between the first and second spectral components, resp.Type: GrantFiled: July 13, 2015Date of Patent: August 7, 2018Assignee: MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.Inventors: Alexander Apolonskiy, Ernst Fill, Ioachim Pupeza, Ferenc Krausz
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Publication number: 20180003623Abstract: A method of measuring a spectral response of a biological sample (1), comprises the steps generation of probe light having a primary spectrum, irradiation of the sample (1) with the probe light, including an interaction of the probe light and the sample (1), and spectrally resolved detection of the probe light having a modified spectrum, which deviates from the primary spectrum as a result of the interaction of the probe light and the sample (1), said modified spectrum being characteristic of the spectral response of the sample (1), wherein the probe light comprises probe light pulses (2) being generated with a fs laser source device (10). Furthermore, a spectroscopic measuring apparatus is described, which is configured for measuring a spectral response of a biological sample (1).Type: ApplicationFiled: December 18, 2015Publication date: January 4, 2018Inventors: Alexander APOLONSKIY, Ioachim PUPEZA, Ferenc KRAUSZ, Ernst FILL
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Publication number: 20170261834Abstract: A method of creating difference frequency (DF) laser pulses (1) by difference frequency generation (DFG) comprises the steps of providing ultrashort laser pulses (2) having a spectral bandwidth corresponding to a Fourier limit of below 50 fs and containing first spectral components and second spectral components having larger frequencies than the first spectral components, and driving a DFG process by the ultrashort laser pulses (2) in an optically non-linear crystal (10), wherein the DF laser pulses (1) are generated in the crystal (10) by difference frequencies between the first and second spectral components, resp.Type: ApplicationFiled: July 13, 2015Publication date: September 14, 2017Inventors: Alexander APOLONSKIY, Ernst FILL, loachim PUPEZA, Ferenc KRAUSZ
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Patent number: 9318867Abstract: A laser device (100), configured for generating laser pulses, has a laser resonator (10) with a gain disk medium (11) and a Kerr medium (12). The laser resonator (10) includes a first mode shaping section (13) which is adapted for shaping a circulating electric field coupled into the gain disk medium (11), and a second mode shaping section (14), which is adapted for shaping the circulating electric field coupled into the Kerr medium (12) independently of the electric field shaping in the first mode shaping section (13). Furthermore, a method of generating laser pulses (1) using a laser resonator (10) with a gain disk medium (11) and a Kerr medium (12) is described.Type: GrantFiled: October 7, 2011Date of Patent: April 19, 2016Assignees: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V., Ludwig-Maximilians-Universitaet MuenchenInventors: Oleg Pronin, Ferenc Krausz, Alexander Apolonskiy, Jonathan Brons
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Patent number: 9142933Abstract: A method of controlling output pulses of a pulse laser device (100) including thin-disk laser medium (10), in particular controlling a carrier-envelope phase and/or an intensity noise of the output pulses, includes pumping thin-disk laser medium (10) of pulse laser device (100) with multiple pump laser diodes (21, 22, 23), having at least one modulated laser diode (21, 22) powered by current source (31, 32) with modulation capability, and controlling the output pulses by modulating the output power of the at least one modulated laser diode (21, 22), which is modulated by controlling a drive current thereof, wherein the pump laser diodes further include at least one stable laser diode (23), having constant output power, and the output power of the at least one modulated laser diode (21, 22) is smaller than the whole output power of the stable laser diode(s) (23). A pulse laser device (100) is also described.Type: GrantFiled: October 24, 2014Date of Patent: September 22, 2015Assignees: Ludwig-Maximilians-Universitaet Muenchen, Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.Inventors: Jonathan Brons, Marcus Seidel, Oleg Pronin, Alexander Apolonskiy
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Patent number: 9030733Abstract: A method of spatially relaying a first radiation component (1) having a first wavelength and a second radiation component (2) having a second wavelength different from the first radiation component (1), using an optical relaying device (10) which comprises a transparent plate (11) having anti-reflection coatings (12, 13) on both side surfaces thereof, comprises transmitting the first radiation component (1) across the optical relaying device (10) with predetermined incident (a) and emergent angles (?), resp., wherein said anti-reflection coatings (12, 13) being effective for the first radiation component (1) at the incident and emergent angles (?, ?), resp., and reflecting the second radiation component (2) at the optical relaying device (10) with a predetermined reflection angle (a) being equal to at least one of said incident and emergent angles (?, ?), wherein the first and second radiation components (1, 2) are split from each other toward different directions or combined into a common beam path.Type: GrantFiled: April 5, 2012Date of Patent: May 12, 2015Assignees: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V., Ludwig-Maximilians-Universitaet MuenchenInventors: Oleg Pronin, Alexander Apolonskiy, Ferenc Krausz, Vladimir Pervak
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Publication number: 20150117481Abstract: A method of controlling output pulses of a pulse laser device (100) including thin-disk laser medium (10), in particular controlling a carrier-envelope phase and/or an intensity noise of the output pulses, includes pumping thin-disk laser medium (10) of pulse laser device (100) with multiple pump laser diodes (21, 22, 23), having at least one modulated laser diode (21, 22) powered by current source (31, 32) with modulation capability, and controlling the output pulses by modulating the output power of the at least one modulated laser diode (21, 22), which is modulated by controlling a drive current thereof, wherein the pump laser diodes further include at least one stable laser diode (23), having constant output power, and the output power of the at least one modulated laser diode (21, 22) is smaller than the whole output power of the stable laser diode(s) (23). A pulse laser device (100) is also described.Type: ApplicationFiled: October 24, 2014Publication date: April 30, 2015Inventors: Jonathan BRONS, Marcus SEIDEL, Oleg PRONIN, Alexander APOLONSKIY
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Publication number: 20140286364Abstract: A laser device (100), configured for generating laser pulses, has a laser resonator (10) with a gain disk medium (11) and a Kerr medium (12). The laser resonator (10) includes a first mode shaping section (13) which is adapted for shaping a circulating electric field coupled into the gain disk medium (11), and a second mode shaping section (14), which is adapted for shaping the circulating electric field coupled into the Kerr medium (12) independently of the electric field shaping in the first mode shaping section (13). Furthermore, a method of generating laser pulses (1) using a laser resonator (10) with a gain disk medium (11) and a Kerr medium (12) is described.Type: ApplicationFiled: October 7, 2011Publication date: September 25, 2014Applicants: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V., Ludwig-Maximilians-Universitaet MuenchenInventors: Oleg Pronin, Ferenc Krausz, Alexander Apolonskiy, Jonathan Brons
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Publication number: 20140036352Abstract: A method of spatially relaying a first radiation component (1) having a first wavelength and a second radiation component (2) having a second wavelength different from the first radiation component (1), using an optical relaying device (10) which comprises a transparent plate (11) having anti-reflection coatings (12, 13) on both side surfaces thereof, comprises transmitting the first radiation component (1) across the optical relaying device (10) with predetermined incident (a) and emergent angles (?), resp., wherein said anti-reflection coatings (12, 13) being effective for the first radiation component (1) at the incident and emergent angles (?, ?), resp., and reflecting the second radiation component (2) at the optical relaying device (10) with a predetermined reflection angle (a) being equal to at least one of said incident and emergent angles (?, ?), wherein the first and second radiation components (1, 2) are split from each other toward different directions or combined into a common beam path.Type: ApplicationFiled: April 5, 2012Publication date: February 6, 2014Applicants: MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN, E.V., LUDWIG-MAXIMILIANS-UNIVERSITAET MUENCHENInventors: Oleg Pronin, Alexander Apolonskiy, Ferenc Krausz, Vladimir Pervak
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Patent number: 8582610Abstract: A radiation source that provides high order harmonic radiation (HHG radiation) in an UV or XUV wavelength range comprising a resonant cavity that guides laser light pulses that includes at least two cavity mirrors, a first non-linear medium that provides the HHG radiation by harmonic generation based on an interaction of the laser light pulses with the first non-linear medium, wherein the first non-linear medium is arranged in the resonant cavity in an environment of reduced pressure, and a second non-linear medium arranged in the resonant cavity and adapted for at least one of amplifying the laser light pulses and phase locking longitudinal modes of the laser light pulses in the resonant cavity.Type: GrantFiled: January 23, 2009Date of Patent: November 12, 2013Assignees: Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V., Ludwig-Maximillians-Universitat MuenchenInventors: Ferenc Krausz, Jens Rauschenberger, Alexander Apolonskiy
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Publication number: 20110013653Abstract: A radiation source that provides high order harmonic radiation (HHG radiation) in an UV or XUV wavelength range comprising a resonant cavity that guides laser light pulses that includes at least two cavity mirrors, a first non-linear medium that provides the HHG radiation by harmonic generation based on an interaction of the laser light pulses with the first non-linear medium, wherein the first non-linear medium is arranged in the resonant cavity in an environment of reduced pressure, and a second non-linear medium arranged in the resonant cavity and adapted for at least one of amplifying the laser light pulses and phase locking longitudinal modes of the laser light pulses in the resonant cavity.Type: ApplicationFiled: January 23, 2009Publication date: January 20, 2011Applicants: MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN E.V., LUDWIG-MAXIMILIANS-UNIVERSITAT MuenchenInventors: Ferenc Krausz, Jens Rauschenberger, Alexander Apolonskiy