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公开(公告)号：US10693206B2
公开(公告)日：2020-06-23
申请号：US16121915
申请日：2018-09-05
发明人： Gaurav Bahl , Christopher Peterson
摘要： A nonreciprocal device includes a waveguide through which waves at a first frequency propagate with a first wavevector and with a second wavevector in a direction opposite to the first wavevector; a frequency-dependent device that operates within a frequency range and modifies the waves through the waveguide in a way that is dependent on the first frequency; and a set of couplers to couple the waveguide and the frequency-dependent device. Coupling rates of the set of couplers are modulated to enable nonreciprocal coupling, with respect to the frequency-dependent device, of the first wavevector compared to the second wavevector.
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公开(公告)号：US10234444B2
公开(公告)日：2019-03-19
申请号：US15278633
申请日：2016-09-28
发明人： Gaurav Bahl , Kewen Han
IPC分类号： G01N15/10 , G01N33/487 , G01N15/14 , G01N29/02 , G01N15/00
摘要： A system and method includes nano opto-mechanical-fluidic resonators (nano-resonators), e.g., for identification of particles, e.g., single viruses and/or cells.
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公开(公告)号：US20190288746A1
公开(公告)日：2019-09-19
申请号：US16352090
申请日：2019-03-13
发明人： Gaurav Bahl , Sameh Tawfick , Rhinithaa P Thanalakshme , Ali Kanj , Inbar Grinberg , Jennifer Bernhard
摘要： The present disclosure provides a device and method for producing low-frequency magnetic-field signals to enable long-range wireless communication through conductive media. The magnetic-field signals can be generated by mechanically moving permanent magnets. In some examples, transmitters are capable of transmitting signals in the ultra-low and very-low frequency ranges (e.g., 100 Hz-30 kHz), utilizing a small amount of power.
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公开(公告)号：US09594267B2
公开(公告)日：2017-03-14
申请号：US14872321
申请日：2015-10-01
发明人： Gaurav Bahl , JunHwan Kim , Hailin Wang , Mark Kuzyk
CPC分类号： G02F1/125 , G02B6/2843 , G02B6/2934 , G02B6/29341
摘要： A system and method includes a laser to create a control laser signal and a laser to create a probe laser signal. A resonator creates an acoustic signal adjacent the control laser signal and the probe laser signal. A resulting coherent interaction between the control laser signal and the probe laser signal creates a Brillouin scattering induced transparency in one direction and maintains opacity in an opposite direction.
摘要翻译： 一种系统和方法包括激光器以产生控制激光信号和激光以产生探针激光信号。 谐振器产生与控制激光信号和探头激光信号相邻的声学信号。 控制激光信号与探头激光信号之间产生的相干相互作用产生了一个方向上的布里渊散射引起的透明度，并且在相反方向上保持不透明度。
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公开(公告)号：US10693524B2
公开(公告)日：2020-06-23
申请号：US16352090
申请日：2019-03-13
发明人： Gaurav Bahl , Sameh Tawfick , Rhinithaa P Thanalakshme , Ali Kanj , Inbar Grinberg , Jennifer Bernhard
摘要： The present disclosure provides a device and method for producing low-frequency magnetic-field signals to enable long-range wireless communication through conductive media. The magnetic-field signals can be generated by mechanically moving permanent magnets. In some examples, transmitters are capable of transmitting signals in the ultra-low and very-low frequency ranges (e.g., 100 Hz-30 kHz), utilizing a small amount of power.
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6.发明授权公开(公告)号：US10690856B2
公开(公告)日：2020-06-23
申请号：US16259775
申请日：2019-01-28
发明人： Gaurav Bahl , Donggyu Benjamin Sohn
摘要： Systems and methods provide a nonreciprocal nanophotonic modulator. In some examples, the modulator utilizes acoustic pumping, instead of optical pumping with lasers, and is capable of achieving GHz bandwidth.
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公开(公告)号：US11073465B2
公开(公告)日：2021-07-27
申请号：US16107478
申请日：2018-08-21
发明人： Gaurav Bahl , Jeewon Suh
IPC分类号： G01N15/14
摘要： A system and method include a resonator device including walls forming a channel, where the walls are shaped to simultaneously confine light in an optical mode and to confine vibration in a mechanical mode, and where the mechanical mode is selected so that vibration in the mechanical mode can couple to the optical mode. A waveguide is coupled with the resonator device for guiding a probe light through the resonator device. An electro-mechanical actuation mechanism provides a mechanical drive force to the resonator device. A photodetector measure light outputted by the waveguide after passing through the resonator device, the outputted light including a modulated version of the probe light based on passing through the resonator device and interacting with a fluid, or a fluid containing a particle, contained by the channel of the resonator device.
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公开(公告)号：US20170089819A1
公开(公告)日：2017-03-30
申请号：US15278633
申请日：2016-09-28
发明人： Gaurav Bahl , Kewen Han
IPC分类号： G01N15/02 , G01N33/487 , G01N15/10
CPC分类号： G01N33/487 , G01N15/10 , G01N15/1056 , G01N15/1436 , G01N15/1459 , G01N15/1484 , G01N29/022 , G01N29/036 , G01N2015/0038 , G01N2015/1043 , G01N2015/1087 , G01N2015/1454 , G01N2291/014 , G01N2291/0256
摘要： A system and method includes nano opto-mechanical-fluidic resonators (nano-resonators), e.g., for identification of particles, e.g., single viruses and/or cells.
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公开(公告)号：US20160109736A1
公开(公告)日：2016-04-21
申请号：US14872321
申请日：2015-10-01
发明人： Gaurav Bahl , JunHwan Kim , Hailin Wang , Mark Kuzyk
CPC分类号： G02F1/125 , G02B6/2843 , G02B6/2934 , G02B6/29341
摘要： A system and method includes a laser to create a control laser signal and a laser to create a probe laser signal. A resonator creates an acoustic signal adjacent the control laser signal and the probe laser signal. A resulting coherent interaction between the control laser signal and the probe laser signal creates a Brillouin scattering induced transparency in one direction and maintains opacity in an opposite direction.
摘要翻译： 一种系统和方法包括激光器以产生控制激光信号和激光以产生探针激光信号。 谐振器产生与控制激光信号和探头激光信号相邻的声学信号。 控制激光信号与探头激光信号之间产生的相干相互作用产生了一个方向上的布里渊散射引起的透明度，并且在相反方向上保持不透明度。
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10.发明申请公开(公告)号：US20200028232A1
公开(公告)日：2020-01-23
申请号：US16121915
申请日：2018-09-05
发明人： Gaurav Bahl , Christopher Peterson
摘要： A nonreciprocal device includes a waveguide through which waves at a first frequency propagate with a first wavevector and with a second wavevector in a direction opposite to the first wavevector; a frequency-dependent device that operates within a frequency range and modifies the waves through the waveguide in a way that is dependent on the first frequency; and a set of couplers to couple the waveguide and the frequency-dependent device. Coupling rates of the set of couplers are modulated to enable nonreciprocal coupling, with respect to the frequency-dependent device, of the first wavevector compared to the second wavevector.
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