公开(公告)号：US20230229115A1

公开(公告)日：2023-07-20

申请号：US17915797

申请日：2021-03-30

Applicant: JEOL Ltd. ,  RIKEN

Inventor： Shigenori Tsuji ,  Masao Takamoto ,  Hidetoshi Katori

IPC: G04F5/14 ,  H01S1/06 ,  G02F1/09 ,  H01J37/16

CPC classification number: G04F5/14 ,  G02F1/09 ,  H01J37/16 ,  H01S1/06 ,  H01J2237/18

Abstract: A physical package is provided with: a MOT device; an optical chamber which constitutes an optical lattice formation portion; and a vacuum chamber which surrounds these components and has a substantially cylindrical shape. The MOT device is arranged along the beam axis of an atomic beam and traps an atom cluster. The optical lattice formation portion uses optical lattice light that enters therein to form an optical lattice in a cavity, confines the atom cluster trapped by the MOT device in the optical lattice, and transfers, along the X-axis which is a movement axis perpendicular to the beam axis, the atom cluster to a clock transition space which facilitates clock transition. The central axis of the cylinder of the main body of the vacuum chamber passes through the clock transition space, and is set to be substantially parallel with the beam axis.

公开(公告)号：US09995800B1

公开(公告)日：2018-06-12

申请号：US14692936

申请日：2015-04-22

Applicant: NATIONAL TECHNOLOGY & ENGINEERING SOLUTIONS OF SANDIA, LLC

Inventor： Peter Schwindt ,  Cort N. Johnson ,  Yuan-Yu Jau

IPC: H03L7/26 ,  G01R33/26 ,  H01S1/06 ,  G04F5/14 ,  G01V3/00

CPC classification number: G01R33/26 ,  G01V3/00 ,  G04F5/14 ,  H01S1/06 ,  H03L7/26

Abstract: An atomic magnetometer includes an atomic vapor cell, an optical system conformed to transmit pump radiation and probe radiation through the vapor cell, and an optical detection system arranged to receive and detect probe radiation after it exits the vapor cell. Improvements in the separation of spatial channels are achieved by using a a diffractive optical element arranged to divide at least the pump radiation into a plurality of separate diffracted beams that traverse the vapor cell.

公开(公告)号：US09912339B2

公开(公告)日：2018-03-06

申请号：US15283742

申请日：2016-10-03

Applicant: Seiko Epson Corporation

Inventor： Koji Chindo

IPC: H03B17/00 ,  H03L7/26 ,  H01S1/00 ,  G04F5/14 ,  H01S1/06

CPC classification number: H03L7/26 ,  G04F5/14 ,  H01S1/00 ,  H01S1/06 ,  H03B17/00

Abstract: An atomic oscillator includes a gas cell that has metal atoms sealed therein, a heating unit that heats the gas cell, a heat transmission unit that is positioned between the gas cell and the heating unit, is thermally connected to the gas cell, and transmits heat generated by the heating unit to the gas cell, and a light absorbing unit that is thermally connected to the gas cell so as to be separated from the heat transmission unit and absorbs heat of the gas cell. The heat transmission unit includes a gas cell accommodation portion including at least a pair of gas cell accommodation walls disposed outside the gas cell, and a thermal conductive elastic member which is interposed in a gap formed by the gas cell and the gas cell accommodation walls of the heat transmission unit.

公开(公告)号：US20170194977A1

公开(公告)日：2017-07-06

申请号：US15467529

申请日：2017-03-23

Applicant: Texas Instruments Incorporated

Inventor： Terrence Edward Dyer ,  Nathan Luke Brockie

IPC: H03L7/26 ,  G04F5/14 ,  G01R33/02 ,  H01S1/06

CPC classification number: H03L7/26 ,  G01R33/02 ,  G04F5/14 ,  H01S1/06

Abstract: Vapor cells and methods for making the same are presented, in which a cell cavity is completely filled with aqueous alkali metal azide solution and the solution is dried at a controlled evaporation rate to substantially maintain edge contact pinning at an interface with the cavity sidewall to promote preferential evaporation in the center and outward capillary flow from an unpinned air-fluid interface toward the sidewall to form crystallized alkali metal material at the sidewall while inhibiting drying of dispersed aqueous solution on a transparent cavity bottom to provide substantially unrestricted passage of light through the cavity for atomic clock and other applications.

公开(公告)号：US20150249456A1

公开(公告)日：2015-09-03

申请号：US14626814

申请日：2015-02-19

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Eric A. Burt ,  Robert L. Hamell ,  Blake C. Tucker ,  Kameron Larsen ,  Robert L. Tjoelker

IPC: H03L7/26 ,  G04F5/14

CPC classification number: G04F5/14 ,  H01S1/06 ,  H03L7/26 ,  Y10T29/49016 ,  Y10T29/49018

Abstract: An atomic clock including an ion trap assembly, a C-field coil positioned for generating a first magnetic field in the interrogation region of the ion trap assembly, a compensation coil positioned for generating a second magnetic field in the interrogation region, wherein the combination of the first and second magnetic fields produces an ion number-dependent second order Zeeman shift (Zeeman shift) in the resonance frequency that is opposite in sign to an ion number-dependent second order Doppler shift (Doppler shift) in the resonance frequency, the C-field coil has a radius selected using data indicating how changes in the radius affect an ion-number-dependent shift in the resonance frequency, such that a difference in magnitude between the Doppler shift and the Zeeman shift is controlled or reduced, and the resonance frequency, including the adjustment by the Zeeman shift, is used to obtain the frequency standard.

Abstract translation: 包括离子阱组件的原子钟，定位用于在离子阱组件的询问区域中产生第一磁场的C场线圈，定位用于在询问区域中产生第二磁场的补偿线圈，其中， 第一和第二磁场在谐振频率上产生离子数相关的二次塞曼偏移（塞曼偏移），其符号与谐振频率中的离子数相关二阶多普勒频移（多普勒频移）相反，C - 场线圈具有使用表示半径的变化如何影响谐振频率的离子数相关移位的数据来选择半径，使得控制或减少多普勒频移与塞曼偏移之间的幅度差，并且谐振 频率，包括由塞曼偏移调整，用于获得频率标准。

公开(公告)号：US20150207516A1

公开(公告)日：2015-07-23

申请号：US14672557

申请日：2015-03-30

Applicant: Seiko Epson Corporation

Inventor： Yoshiyuki MAKI

IPC: H03L7/26

CPC classification number: H03L7/26 ,  G04F5/14 ,  H01S1/06 ,  H03B17/00

Abstract: An atomic oscillator includes: a gas cell which includes two window portions having a light transmissive property and in which metal atoms are sealed; a light emitting portion that emits excitation light to excite the metal atoms in the gas cell; a light detecting portion that detects the excitation light transmitted through the gas cell; a heater that generates heat; and a connection member that thermally connects the heater and each window portion of the gas cell to each other.

Abstract translation: 原子振荡器包括：气室，其包括具有透光性的两个窗口部分，并且其中金属原子被密封; 发射激发光以激发气室中的金属原子的发光部分; 光检测部，其检测透过所述气室的激发光; 产生热量的加热器 以及将加热器和气室的每个窗口部彼此热连接的连接构件。

公开(公告)号：US08816783B2

公开(公告)日：2014-08-26

申请号：US13393996

申请日：2010-09-01

Applicant: Steve Lecomte ,  Jacques Haesler

Inventor： Steve Lecomte ,  Jacques Haesler

IPC: H03B17/00 ,  H03L7/26 ,  H01S1/06 ,  G04F5/14

CPC classification number: G04F5/14 ,  G04F5/145 ,  H01S1/06 ,  H03B17/00 ,  H03L7/26

Abstract: A device for an atomic clock, including: a laser source (102) that generates a laser beam; a splitter (101) that makes it possible to divert and allow a portion of the laser beam to pass therethrough in accordance with a predefined percentage; a quarter-wave plate (105) that modifies the linear polarization of the laser beam into circular polarization and vice versa; a gas cell arranged on the circular polarization laser beam; a mirror (107) sending the laser beam back toward the gas cell (106); a first photodetector (108a), and a polarizer (103) arranged between the laser beam outlet and the splitter in order to protect the laser source from the retroreflections emitted by different optical elements constituting the device.

Abstract translation: 一种用于原子钟的装置，包括：产生激光束的激光源（102）; 分离器（101），其使得可以根据预定百分比转移并允许激光束的一部分通过; 将激光束的线性偏振改变为圆偏振的四分之一波片（105），反之亦然; 设置在圆偏振激光束上的气室; 将激光束送回气室（106）的反射镜（107）; 第一光电检测器（108a）和布置在激光束出口​​和分离器之间的偏振器（103），以便保护激光源不被构成该器件的不同光学元件发射的回射。

公开(公告)号：US20140232479A1

公开(公告)日：2014-08-21

申请号：US14177497

申请日：2014-02-11

Applicant: SEIKO EPSON CORPORATION

Inventor： Yoshiyuki Maki

IPC: H03L7/26 ,  H01S1/06

CPC classification number: H03L7/26 ,  G04F5/14 ,  H01S1/06 ,  H03B17/00

Abstract: An atomic oscillator includes: a gas cell which includes two window portions having a light transmissive property and in which metal atoms are sealed; a light emitting portion that emits excitation light to excite the metal atoms in the gas cell; a light detecting portion that detects the excitation light transmitted through the gas cell; a heater that generates heat; and a connection member that thermally connects the heater and each window portion of the gas cell to each other.

Abstract translation: 原子振荡器包括：气室，其包括具有透光性的两个窗口部分，并且其中金属原子被密封; 发射激发光以激发气室中的金属原子的发光部分; 光检测部，其检测透过所述气室的激发光; 产生热量的加热器 以及将加热器和气室的每个窗口部彼此热连接的连接构件。

公开(公告)号：US20120286884A1

公开(公告)日：2012-11-15

申请号：US13105735

申请日：2011-05-11

Applicant: Jeffrey F. DeNatale ,  Philip A. Stupar ,  Yu-Hua Lin ,  Robert L. Borwick ,  Alexandros P. Papavasiliou

Inventor： Jeffrey F. DeNatale ,  Philip A. Stupar ,  Yu-Hua Lin ,  Robert L. Borwick ,  Alexandros P. Papavasiliou

IPC: H01S1/02 ,  B05D5/00 ,  B05D3/10 ,  H05K1/14 ,  B32B3/12 ,  B32B15/08 ,  B32B3/10 ,  C23F1/00 ,  B32B3/30

CPC classification number: H01S1/06 ,  B05D3/10 ,  B05D5/00 ,  B32B3/10 ,  B32B3/12 ,  B32B3/30 ,  B32B15/08 ,  B81B3/0081 ,  B81B7/0006 ,  C23F1/00 ,  G04F5/14 ,  H01S1/02 ,  H05K1/14 ,  Y10T428/24149 ,  Y10T428/24331 ,  Y10T428/24521 ,  Y10T428/24545

Abstract: A microscale apparatus includes a microscale rigidized Parylene strap having a reinforcement structure extending from a first side of the strap, a first silicon substrate suspended by the microscale rigidized Parylene strap, the microscale rigidized Parylene strap conformally coupled to the first substrate, and a second substrate conformally coupled to the microscale rigidized Parylene strap to suspend the first silicon substrate through the microscale rigidized Parylene strap.

Abstract translation: 微型设备包括具有从带的第一侧延伸的增强结构的微尺寸刚性聚对二甲苯带，通过微尺寸刚性聚对二甲苯带悬挂的第一硅衬底，与第一衬底共形耦合的微尺寸刚性聚对二甲苯带和第二衬底 保形地耦合到微尺寸刚性聚对二甲苯带，以悬浮第一硅衬底通过微尺寸刚性聚对二甲苯带。

公开(公告)号：US4326174A

公开(公告)日：1982-04-20

申请号：US119139

申请日：1980-02-05

Applicant: Giovanni Busca ,  Helmuth-Hugo Brandenberger

Inventor： Giovanni Busca ,  Helmuth-Hugo Brandenberger

IPC: H01S1/00 ,  H01S1/06 ,  H03L7/26

CPC classification number: H03L7/26 ,  H01S1/06

Abstract: The invention, which may be used in particular as a frequency standard, seeks to avoid disturbance in the control action in respect of the cavity 10 by a powerful parasite signal due to the line of stimulated emission. Control of the cavity and control of the oscillator 1 on the line of stimulated emission control in a shared-time mode. A control circuit 40 acts on the carrier by way of a programmable synthesizer 43, the carrier than assuming the successive values .omega..sub.+, .omega..sub.H, .omega..sub.-, .omega..sub.H, .omega..sub.+, etc. in stages. .omega..sub.H is centered on the line of stimulated emission; .omega..sub.+ and .omega..sub.- which are symmetrically shifted interrogate the flanks of the emission line. By means of a signal INH, the control circuit 40 periodically suppresses the output of an active filter 42 and thus interrupts the detection action used for controlling the cavity, during the periods in which .omega..sub.Q is equal to .omega..sub.+ or .omega..sub.-. This detection action occurs only when .omega..sub.Q =.omega..sub.H, and after a damping dead time.

Abstract translation: 可以特别用作频率标准的本发明旨在通过由于受激发射线引起的强大的寄生信号来避免对空腔10的控制动作的干扰。 在共享时间模式下，对受激发射控制线上的振荡器1的控制和控制进行控制。 控制电路40通过可编程合成器43作用在载体上，载体比阶段地假设连续的值ω+，ω，ω，ω，ω，ω+等等。 欧米茄他以受激发射线为中心; 对称偏移询问发射线的侧面的ω+和ω-。 通过信号INH，控制电路40周期性地抑制有源滤波器42的输出，并因此中断ΩΩ等于ω+或ω-ω的周期期间用于控制空腔的检测动作。 该检测动作仅在ω=ω= H时和阻尼死时间之后才发生。