公开(公告)号：US20160372300A1

公开(公告)日：2016-12-22

申请号：US15244569

申请日：2016-08-23

Applicant: Liang Jie Wong ,  Byron Freelon ,  Timm Rohwer ,  Nuh Gedik ,  Steven Glenn Johnson

Inventor： Liang Jie Wong ,  Byron Freelon ,  Timm Rohwer ,  Nuh Gedik ,  Steven Glenn Johnson

IPC: H01J37/06

CPC classification number: H01J37/06 ,  H01J2237/047 ,  H01J2237/0473 ,  H01J2237/0475 ,  H01J2237/063

Abstract: Methods and apparatus for modulating a particle pulse include a succession of Hermite-Gaussian optical modes that effectively construct a three-dimensional optical trap in the particle pulse's rest frame. Optical incidence angles between the propagation of the particle pulse and the optical pulse are tuned for improved compression. Particles pulses that can be modulated by these methods and apparatus include charged particles and particles with non-zero polarizability in the Rayleigh regime. Exact solutions to Maxwell's equations for first-order Hermite-Gaussian beams demonstrate single-electron pulse compression factors of more than 100 in both longitudinal and transverse dimensions. The methods and apparatus are useful in ultrafast electron imaging for both single- and multi-electron pulse compression, and as a means of circumventing temporal distortions in magnetic lenses when focusing ultra-short electron pulses.

Abstract translation: 用于调制粒子脉冲的方法和装置包括一系列Hermite-Gaussian光学模式，其有效地构成了粒子脉冲的休止帧中的三维光阱。 调整粒子脉冲的传播和光脉冲之间的光入射角以改善压缩。 可以通过这些方法和装置调制的粒子脉冲包括带电粒子和在瑞利状态下具有非零极化率的粒子。 针对一阶Hermite-Gaussian光束的麦克斯韦方程的精确解决方案在纵向和横向尺寸上均显示出超过100的单电子脉冲压缩因子。 该方法和装置在用于单电子和多电子脉冲压缩的超快电子成像中是有用的，并且作为在聚焦超短电子脉冲时避开磁性透镜中的时间失真的手段。

公开(公告)号：US09842721B2

公开(公告)日：2017-12-12

申请号：US15244569

申请日：2016-08-23

Applicant: Liang Jie Wong ,  Byron Freelon ,  Timm Rohwer ,  Nuh Gedik ,  Steven Glenn Johnson

Inventor： Liang Jie Wong ,  Byron Freelon ,  Timm Rohwer ,  Nuh Gedik ,  Steven Glenn Johnson

IPC: H01J37/00 ,  H01J37/06

CPC classification number: H01J37/06 ,  H01J2237/047 ,  H01J2237/0473 ,  H01J2237/0475 ,  H01J2237/063

Abstract: Methods and apparatus for modulating a particle pulse include a succession of Hermite-Gaussian optical modes that effectively construct a three-dimensional optical trap in the particle pulse's rest frame. Optical incidence angles between the propagation of the particle pulse and the optical pulse are tuned for improved compression. Particles pulses that can be modulated by these methods and apparatus include charged particles and particles with non-zero polarizability in the Rayleigh regime. Exact solutions to Maxwell's equations for first-order Hermite-Gaussian beams demonstrate single-electron pulse compression factors of more than 100 in both longitudinal and transverse dimensions. The methods and apparatus are useful in ultrafast electron imaging for both single- and multi-electron pulse compression, and as a means of circumventing temporal distortions in magnetic lenses when focusing ultra-short electron pulses.

公开(公告)号：US09536698B2

公开(公告)日：2017-01-03

申请号：US14832056

申请日：2015-08-21

Applicant: Liang Jie Wong ,  Byron Freelon ,  Timm Rohwer ,  Nuh Gedik ,  Steven Glenn Johnson

Inventor： Liang Jie Wong ,  Byron Freelon ,  Timm Rohwer ,  Nuh Gedik ,  Steven Glenn Johnson

IPC: H01J37/00 ,  H01J37/06

CPC classification number: H01J37/06 ,  H01J2237/047 ,  H01J2237/0473 ,  H01J2237/0475 ,  H01J2237/063

Abstract: Methods and apparatus for modulating a particle pulse include a succession of Hermite-Gaussian optical modes that effectively construct a three-dimensional optical trap in the particle pulse's rest frame. Optical incidence angles between the propagation of the particle pulse and the optical pulse are tuned for improved compression. Particles pulses that can be modulated by these methods and apparatus include charged particles and particles with non-zero polarizability in the Rayleigh regime. Exact solutions to Maxwell's equations for first-order Hermite-Gaussian beams demonstrate single-electron pulse compression factors of more than 100 in both longitudinal and transverse dimensions. The methods and apparatus are useful in ultrafast electron imaging for both single- and multi-electron pulse compression, and as a means of circumventing temporal distortions in magnetic lenses when focusing ultra-short electron pulses.

Abstract translation: 用于调制粒子脉冲的方法和装置包括一系列Hermite-Gaussian光学模式，其有效地构成了粒子脉冲的休止帧中的三维光阱。 调整粒子脉冲的传播和光脉冲之间的光入射角以改善压缩。 可以通过这些方法和装置调制的粒子脉冲包括带电粒子和在瑞利状态下具有非零极化率的粒子。 针对一阶Hermite-Gaussian光束的麦克斯韦方程的精确解决方案在纵向和横向尺寸上均显示出超过100的单电子脉冲压缩因子。 该方法和装置在用于单电子和多电子脉冲压缩的超快电子成像中是有用的，并且作为在聚焦超短电子脉冲时避开磁性透镜中的时间失真的手段。

公开(公告)号：US09455114B2

公开(公告)日：2016-09-27

申请号：US14832056

申请日：2015-08-21

Applicant: Liang Jie Wong ,  Byron Freelon ,  Timm Rohwer ,  Nuh Gedik ,  Steven Glenn Johnson

Inventor： Liang Jie Wong ,  Byron Freelon ,  Timm Rohwer ,  Nuh Gedik ,  Steven Glenn Johnson

IPC: H01J37/00 ,  H01J37/06

Abstract: Methods and apparatus for modulating a particle pulse include a succession of Hermite-Gaussian optical modes that effectively construct a three-dimensional optical trap in the particle pulse's rest frame. Optical incidence angles between the propagation of the particle pulse and the optical pulse are tuned for improved compression. Particles pulses that can be modulated by these methods and apparatus include charged particles and particles with non-zero polarizability in the Rayleigh regime. Exact solutions to Maxwell's equations for first-order Hermite-Gaussian beams demonstrate single-electron pulse compression factors of more than 100 in both longitudinal and transverse dimensions. The methods and apparatus are useful in ultrafast electron imaging for both single- and multi-electron pulse compression, and as a means of circumventing temporal distortions in magnetic lenses when focusing ultra-short electron pulses.

公开(公告)号：US20160056010A1

公开(公告)日：2016-02-25

申请号：US14832056

申请日：2015-08-21

Applicant: Liang Jie Wong ,  Byron Freelon ,  Timm Rohwer ,  Nuh Gedik ,  Steven Glenn Johnson

Inventor： Liang Jie Wong ,  Byron Freelon ,  Timm Rohwer ,  Nuh Gedik ,  Steven Glenn Johnson

IPC: H01J37/06

CPC classification number: H01J37/06 ,  H01J2237/047 ,  H01J2237/0473 ,  H01J2237/0475 ,  H01J2237/063

Abstract: Methods and apparatus for modulating a particle pulse include a succession of Hermite-Gaussian optical modes that effectively construct a three-dimensional optical trap in the particle pulse's rest frame. Optical incidence angles between the propagation of the particle pulse and the optical pulse are tuned for improved compression. Particles pulses that can be modulated by these methods and apparatus include charged particles and particles with non-zero polarizability in the Rayleigh regime. Exact solutions to Maxwell's equations for first-order Hermite-Gaussian beams demonstrate single-electron pulse compression factors of more than 100 in both longitudinal and transverse dimensions. The methods and apparatus are useful in ultrafast electron imaging for both single- and multi-electron pulse compression, and as a means of circumventing temporal distortions in magnetic lenses when focusing ultra-short electron pulses.

Abstract translation: 用于调制粒子脉冲的方法和装置包括一系列Hermite-Gaussian光学模式，其有效地构成了粒子脉冲的休止帧中的三维光阱。 调整粒子脉冲的传播和光脉冲之间的光入射角以改善压缩。 可以通过这些方法和装置调制的粒子脉冲包括带电粒子和在瑞利状态下具有非零极化率的粒子。 针对一阶Hermite-Gaussian光束的麦克斯韦方程的精确解决方案在纵向和横向尺寸上均显示出超过100的单电子脉冲压缩因子。 该方法和装置在用于单电子和多电子脉冲压缩的超快电子成像中是有用的，并且作为在聚焦超短电子脉冲时避开磁性透镜中的时间失真的手段。