公开(公告)号：US12242141B2

公开(公告)日：2025-03-04

申请号：US18297886

申请日：2023-04-10

Applicant: Eric A. Imhof ,  Steven Ryan Jefferts ,  Vyacheslav Lebedev

Inventor： Eric A. Imhof ,  Steven Ryan Jefferts ,  Vyacheslav Lebedev

IPC: G04F5/14 ,  G02F1/01 ,  G05D25/02 ,  H03L7/26

Abstract: One example includes an atomic optical reference system. The system includes an optical system comprising a laser configured to generate an optical beam. The system also includes a vapor cell comprising alkali metal atoms that are stimulated in response to a modulated beam corresponding to an amplitude-modulated version of the optical beam. The system also includes a detection system configured to monitor at least one detection signal corresponding to light emitted from or absorbed by the vapor cell and to generate at least one feedback signal in response to the at least one detection signal. The system further includes a beam modulator configured to amplitude-modulate the optical beam to generate the modulated beam and to frequency shift the optical beam to generate an output beam having a stable frequency in response to the at least one feedback signal.

公开(公告)号：US20220196718A1

公开(公告)日：2022-06-23

申请号：US17552854

申请日：2021-12-16

Applicant: THAD G. WALKER ,  ERIC A. IMHOF ,  STEVEN RYAN JEFFERTS

Inventor： THAD G. WALKER ,  ERIC A. IMHOF ,  STEVEN RYAN JEFFERTS

IPC: G01R29/12

Abstract: One embodiment includes an electrometer system. The system includes a sensor cell comprising alkali metal atoms within, and an optical beam system configured to provide at least one optical beam through the sensor cell to provide a first Rydberg energy state of the alkali metal atoms, the at least one optical beam exiting the sensor cell as a detection beam. The system also includes a tuning signal generator configured to generate a tuning signal having a predetermined tuning frequency to adjust an energy difference between the first Rydberg energy state and a second Rydberg energy state of the alkali metal atoms. The system further includes a detection system configured to monitor the detection beam to detect an external signal having a frequency that is approximately equal to the energy difference between the first Rydberg energy state and the second Rydberg energy state based on monitoring the detection beam.

公开(公告)号：US20220196444A1

公开(公告)日：2022-06-23

申请号：US17552909

申请日：2021-12-16

Applicant: ERIC A. IMHOF ,  THOMAS G. SPENCE ,  STEVEN RYAN JEFFERTS ,  MICHAEL D. BULATOWICZ

Inventor： ERIC A. IMHOF ,  THOMAS G. SPENCE ,  STEVEN RYAN JEFFERTS ,  MICHAEL D. BULATOWICZ

IPC: G01D11/24 ,  G04F5/14

Abstract: One embodiment includes a vapor cell for an atomic physics-based sensor system. The vapor cell includes a cell wall formed from an approximately transparent material. The cell wall can enclose an alkali metal vapor and can include an inner surface and an outer surface. The vapor cell can also include at least one structural feature provided on at least one of the inner surface and the outer surface of the cell wall and extending along a portion of the respective at least one of the inner surface and the outer surface.

公开(公告)号：US12188784B2

公开(公告)日：2025-01-07

申请号：US17552909

申请日：2021-12-16

Applicant: Eric A. Imhof ,  Thomas G. Spence ,  Steven Ryan Jefferts ,  Michael D. Bulatowicz

Inventor： Eric A. Imhof ,  Thomas G. Spence ,  Steven Ryan Jefferts ,  Michael D. Bulatowicz

IPC: G01D11/24 ,  G04F5/14

Abstract: One embodiment includes a vapor cell for an atomic physics-based sensor system. The vapor cell includes a cell wall formed from an approximately transparent material. The cell wall can enclose an alkali metal vapor and can include an inner surface and an outer surface. The vapor cell can also include at least one structural feature provided on at least one of the inner surface and the outer surface of the cell wall and extending along a portion of the respective at least one of the inner surface and the outer surface.

公开(公告)号：US20230333415A1

公开(公告)日：2023-10-19

申请号：US18297886

申请日：2023-04-10

Applicant: ERIC A. IMHOF ,  STEVEN RYAN JEFFERTS ,  VYACHESLAV LEBEDEV

Inventor： ERIC A. IMHOF ,  STEVEN RYAN JEFFERTS ,  VYACHESLAV LEBEDEV

IPC: G02F1/01 ,  G05D25/02 ,  H03L7/26 ,  G04F5/14

CPC classification number: G02F1/0121 ,  G05D25/02 ,  H03L7/26 ,  G04F5/14 ,  G02F2201/58

Abstract: One example includes an atomic optical reference system. The system includes an optical system comprising a laser configured to generate an optical beam. The system also includes a vapor cell comprising alkali metal atoms that are stimulated in response to a modulated beam corresponding to an amplitude-modulated version of the optical beam. The system also includes a detection system configured to monitor at least one detection signal corresponding to light emitted from or absorbed by the vapor cell and to generate at least one feedback signal in response to the at least one detection signal. The system further includes a beam modulator configured to amplitude-modulate the optical beam to generate the modulated beam and to frequency shift the optical beam to generate an output beam having a stable frequency in response to the at least one feedback signal.

公开(公告)号：US20220196719A1

公开(公告)日：2022-06-23

申请号：US17552873

申请日：2021-12-16

Applicant: THAD G. WALKER ,  ERIC A. IMHOF ,  STEVEN RYAN JEFFERTS

Inventor： THAD G. WALKER ,  ERIC A. IMHOF ,  STEVEN RYAN JEFFERTS

IPC: G01R29/12

Abstract: One embodiment includes an electrometer system. The system includes a sensor cell comprising alkali metal atoms within, and a probe laser configured to generate a probe beam, the probe beam being provided through the sensor cell. The system also includes a coupling laser configured to generate a coupling beam. The coupling beam can be provided through the sensor cell to combine with the probe beam provided through the sensor cell to provide a Rydberg energy state of the alkali metal atoms, the probe beam exiting the sensor cell as a detection beam. The system further includes a sensor control system configured to monitor the detection beam to detect an external signal based on monitoring a phase of the detection beam.