Quantum interference device, atomic oscillator, electronic apparatus, and moving object

Patent metadata

Field	Value
Publication number	US-9203026-B2
Application number	US-201414564677-A
Country	US
Kind code	B2
Filing date	Dec 9, 2014
Priority date	Dec 16, 2013
Publication date	Dec 1, 2015
Grant date	Dec 1, 2015

Abstract

A quantum interference device includes a wiring board, a second unit including a gas cell in which metal atoms are sealed, a first unit that includes a light emission unit emitting light, which includes a resonance light pair for resonating the metal atoms, toward the metal atoms, and a supporting plate that has a plate shape, supports the first unit and the second unit on one surface side thereof, and is connected to the wiring board on the other surface side thereof. In addition, a second supporting portion supporting the second unit of the supporting plate includes a portion separated from the wiring board.

First claim

What is claimed is:

1. A quantum interference device comprising:
a substrate;
a gas cell unit that includes a gas cell in which metal atoms are sealed;
a power supply unit that includes a power supply emitting light, which includes a resonance light pair for resonating the metal atoms, toward the metal atoms; and
a connection member that is connected to the gas cell unit and the power supply unit above one surface side thereof and is connected to the substrate above the other surface side thereof,
wherein a portion of the connection member which is connected to the gas cell unit has a portion which is separated from the substrate above the other surface side.

2. The quantum interference device according to claim 1 , wherein a gap is provided between the gas cell unit and the substrate.

3. The quantum interference device according to claim 1 , wherein an area of a region where the connection member and the gas cell unit overlap each other in a plan view of the connection member is equal to or less than 50% of an area of the gas cell unit in a plan view of the connection member.

4. The quantum interference device according to claim 1 , wherein the connection member and the gas cell unit come into contact with each other through a plurality of surfaces.

5. The quantum interference device according to claim 1 , wherein one end side of the connection member is supported by the substrate, and the other end side thereof is connected to the gas cell unit.

6. The quantum interference device according to claim 1 , wherein a regulation member is provided between the substrate and the portion of the connection member which is connected to the gas cell unit so as to regulate a separation distance therebetween.

7. The quantum interference device according to claim 1 , wherein a heat insulator is provided between the connection member and the gas cell unit.

8. The quantum interference device according to claim 1 , wherein a portion of the connection member which is connected to at least the power supply unit includes a metal material.

9. The quantum interference device according to claim 1 , wherein the connection member includes a positioning portion that performs positioning in an emission direction of the light.

10. An atomic oscillator comprising the quantum interference device according to claim 1 .

11. An electronic apparatus comprising the quantum interference device according to claim 1 .

12. A moving object comprising the quantum interference device according to claim 1 .

Assignees

• Seiko Epson Corp

Inventors

• Tanaka Noriaki
• Tamura Tomohiro
• Chindo Koji

Classifications

• H01L49/006 Primary

  Electricity · mapped topic

• H03L7/26 Primary

  using energy levels of molecules, atoms, or subatomic particles as a frequency reference · CPC title

• H10N99/05 Primary

  Devices based on quantum mechanical effects, e.g. quantum interference devices or metal single-electron transistors · CPC title