-
公开(公告)号：US20150048822A1
公开(公告)日：2015-02-19
申请号：US14125945
申请日：2012-06-13
申请人： Ronald Walsworth , Linh My Pham
发明人： Ronald Walsworth , Linh My Pham
CPC分类号： G01R33/323 , G01N24/08 , G01R33/24 , G01R33/60
摘要： Long spin coherence lifetimes are realized for ensembles of electronic spin impurities in solid state spin systems, for example NV color centers in diamond, by using spin-control RF pulse sequences to provide dynamic decoupling of the ensembles of spin impurities from environmental sources of decoherence such as dipolar and hyperfine interactions with proximal spin and other paramagnetic impurities in diamond. In this way, the measurement sensitivity of the coherent evolution of ensembles of solid state spin impurities are increased. Using the Carr-Purcell-Meiboom-Gill (CPMG) pulse sequence, the spin coherence lifetimes of NV ensembles can be extended to more than 2 ms in room temperature diamond, and sensitivity of magnetometry that uses NV ensembles can be increased.
摘要翻译： 通过使用自旋控制RF脉冲序列来提供固体状态自旋系统中的电子自旋杂质的集合，例如金刚石中的NV色心，可以实现长旋转相干寿命，以提供旋转杂质的集合与环境干燥源的动态去耦，如 作为金刚石中近端旋转和其他顺磁性杂质的偶极和超精细相互作用。 以这种方式，固态自旋杂质集合的相干演化的测量灵敏度增加。 使用Carr-Purcell-Meiboom-Gill（CPMG）脉冲序列，NV集合的旋转相干寿命可以延长到超过2 ms的室温金刚石，并且可以增加使用NV集合的磁力计的灵敏度。
-
公开(公告)号：US20180074149A1
公开(公告)日：2018-03-15
申请号：US15790007
申请日：2017-10-22
CPC分类号： G01R33/58 , G01R33/1284 , G01R33/24 , G01R33/4616 , G01R33/60
摘要： A solid state electronic spin system contains electronic spins disposed within a solid state lattice and coupled to an electronic spin bath and a nuclear spin bath, where the electronic spin bath composed of electronic spin impurities and the nuclear spin bath composed of nuclear spin impurities. The concentration of nuclear spin impurities in the nuclear spin bath is controlled to a value chosen so as to allow the nuclear spin impurities to effect a suppression of spin fluctuations and spin decoherence caused by the electronic spin bath. Sensing devices such as magnetic field detectors can exploit such a spin bath suppression effect, by applying optical radiation to the electronic spins for initialization and readout, and applying RF pulses to dynamically decouple the electronic spins from the electronic spin bath and the nuclear spin bath.
-
公开(公告)号：US09829557B2
公开(公告)日：2017-11-28
申请号：US15635701
申请日：2017-06-28
CPC分类号： G01R33/58 , G01R33/1284 , G01R33/24 , G01R33/4616 , G01R33/60
摘要： A solid state electronic spin system contains electronic spins disposed within a solid state lattice and coupled to an electronic spin bath and a nuclear spin bath, where the electronic spin bath composed of electronic spin impurities and the nuclear spin bath composed of nuclear spin impurities. The concentration of nuclear spin impurities in the nuclear spin bath is controlled to a value chosen so as to allow the nuclear spin impurities to effect a suppression of spin fluctuations and spin decoherence caused by the electronic spin bath. Sensing devices such as magnetic field detectors can exploit such a spin bath suppression effect, by applying optical radiation to the electronic spins for initialization and readout, and applying RF pulses to dynamically decouple the electronic spins from the electronic spin bath and the nuclear spin bath.
-
公开(公告)号：US09720067B2
公开(公告)日：2017-08-01
申请号：US14361626
申请日：2012-11-30
CPC分类号： G01R33/58 , G01R33/1284 , G01R33/24 , G01R33/4616 , G01R33/60
摘要： A solid state electronic spin system contains electronic spins disposed within a solid state lattice and coupled to an electronic spin bath and a nuclear spin bath, where the electronic spin bath composed of electronic spin impurities and the nuclear spin bath composed of nuclear spin impurities. The concentration of nuclear spin impurities in the nuclear spin bath is controlled to a value chosen so as to allow the nuclear spin impurities to effect a suppression of spin fluctuations and spin decoherence caused by the electronic spin bath. Sensing devices such as magnetic field detectors can exploit such a spin bath suppression effect, by applying optical radiation to the electronic spins for initialization and readout, and applying RF pulses to dynamically decouple the electronic spins from the electronic spin bath and the nuclear spin bath.
-
公开(公告)号：US20170299664A1
公开(公告)日：2017-10-19
申请号：US15635701
申请日：2017-06-28
IPC分类号： G01R33/032 , G01R33/60
CPC分类号： G01R33/58 , G01R33/1284 , G01R33/24 , G01R33/4616 , G01R33/60
摘要： A solid state electronic spin system contains electronic spins disposed within a solid state lattice and coupled to an electronic spin bath and a nuclear spin bath, where the electronic spin bath composed of electronic spin impurities and the nuclear spin bath composed of nuclear spin impurities. The concentration of nuclear spin impurities in the nuclear spin bath is controlled to a value chosen so as to allow the nuclear spin impurities to effect a suppression of spin fluctuations and spin decoherence caused by the electronic spin bath. Sensing devices such as magnetic field detectors can exploit such a spin bath suppression effect, by applying optical radiation to the electronic spins for initialization and readout, and apply-ing RF pulses to dynamically decouple the electronic spins from the electronic spin bath and the nuclear spin bath.
-
6.发明申请Spectral Decomposition Of Composite Solid State Spin Environments Through Quantum Control of Spin Impurities 审中-公开通过自旋杂质的量子控制对复合固态旋转环境的光谱分解公开(公告)号：US20140191752A1
公开(公告)日：2014-07-10
申请号：US14125941
申请日：2012-06-13
IPC分类号： G06N99/00
摘要： Methods and systems are described for spectral decomposition of composite solid-state spin environments through quantum control of electronic spin impurities. Δ sequence of spin-control modulation pulses are applied to the electronic spin impurities in the solid-state spin systems. The spectral content of the spin bath that surrounds the electronic spin impurities within the solid-state spin system is extracted, by measuring the coherent evolution and associated decoherence of the spin impurities as a function of number of the applied modulation pulses, and the time-spacing between the pulses. Using these methods, fundamental properties of the spin environment such as the correlation times and the coupling strengths for both electronic and nuclear spins in the spin bath, can be determined.
摘要翻译： 描述了通过电子自旋杂质的量子控制对复合固态自旋环境进行光谱分解的方法和系统。 ＆Dgr 自旋控制调制脉冲的顺序被施加到固态自旋系统中的电子自旋杂质。 通过测量作为施加的调制脉冲数的函数的自旋杂质的相干演化和相关的去相干性，提取围绕固态自旋系统内的电子自旋杂质的旋转浴槽的光谱含量， 脉冲之间的间距。 使用这些方法，可以确定自旋环境的基本特性，例如旋转浴中的电子和核自旋的相关时间和耦合强度。
-
公开(公告)号：US09939510B2
公开(公告)日：2018-04-10
申请号：US15790007
申请日：2017-10-22
CPC分类号： G01R33/58 , G01R33/1284 , G01R33/24 , G01R33/4616 , G01R33/60
摘要： A solid state electronic spin system contains electronic spins disposed within a solid state lattice and coupled to an electronic spin bath and a nuclear spin bath, where the electronic spin bath composed of electronic spin impurities and the nuclear spin bath composed of nuclear spin impurities. The concentration of nuclear spin impurities in the nuclear spin bath is controlled to a value chosen so as to allow the nuclear spin impurities to effect a suppression of spin fluctuations and spin decoherence caused by the electronic spin bath. Sensing devices such as magnetic field detectors can exploit such a spin bath suppression effect, by applying optical radiation to the electronic spins for initialization and readout, and applying RF pulses to dynamically decouple the electronic spins from the electronic spin bath and the nuclear spin bath.
-
公开(公告)号：US09784804B2
公开(公告)日：2017-10-10
申请号：US14125945
申请日：2012-06-13
申请人： Ronald Walsworth , Linh My Pham
发明人： Ronald Walsworth , Linh My Pham
CPC分类号： G01R33/323 , G01N24/08 , G01R33/24 , G01R33/60
摘要： Long spin coherence lifetimes are realized for ensembles of electronic spin impurities in solid state spin systems, for example NV color centers in diamond, by using spin-control RF pulse sequences to provide dynamic decoupling of the ensembles of spin impurities from environmental sources of decoherence such as dipolar and hyperfine interactions with proximal spin and other paramagnetic impurities in diamond. In this way, the measurement sensitivity of the coherent evolution of ensembles of solid state spin impurities are increased. Using the Carr-Purcell-Meiboom-Gill (CPMG) pulse sequence, the spin coherence lifetimes of NV ensembles can be extended to more than 2 ms in room temperature diamond, and sensitivity of magnetometry that uses NV ensembles can be increased.
-
9.发明申请Use of Nuclear Spin Impurities to Suppress Electronic Spin Fluctuations and Decoherence in Composite Solid-State Spin Systems 有权使用核自旋杂质来抑制复合固态自旋系统中的电子自旋波动和去相干公开(公告)号：US20140306707A1
公开(公告)日：2014-10-16
申请号：US14361626
申请日：2012-11-30
CPC分类号： G01R33/58 , G01R33/1284 , G01R33/24 , G01R33/4616 , G01R33/60
摘要： A solid state electronic spin system contains electronic spins disposed within a solid state lattice and coupled to an electronic spin bath and a nuclear spin bath, where the electronic spin bath composed of electronic spin impurities and the nuclear spin bath composed of nuclear spin impurities. The concentration of nuclear spin impurities in the nuclear spin bath is controlled to a value chosen so as to allow the nuclear spin impurities to effect a suppression of spin fluctuations and spin decoherence caused by the electronic spin bath. Sensing devices such as magnetic field detectors can exploit such a spin bath suppression effect, by applying optical radiation to the electronic spins for initialization and readout, and applying RF pulses to dynamically decouple the electronic spins from the electronic spin bath and the nuclear spin bath.
摘要翻译： 固态电子自旋系统包含设置在固态晶格内的电子自旋，并耦合到电子旋转浴和核旋转浴，其中由电子自旋杂质组成的电子旋转浴和由核旋转杂质组成的核旋转浴。 核旋转浴中核自旋杂质的浓度被控制为选择的值，以便允许核自旋杂质抑制由电子旋转浴引起的自旋波动和自旋去相干。 诸如磁场检测器的感测装置可以通过将光辐射施加到用于初始化和读出的电子自旋中，并且施加RF脉冲以使电子自旋与电子旋转浴和核旋转浴动态解耦，可以利用这种旋转浴抑制效果。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.012 秒)
