Atomic cell, atomic resonance transition device, atomic oscillator, electronic apparatus, and moving object
AssigneeSeiko Epson Corporation
InventorYoshiyuki MAKI
Life of this patent
Estimating the term…
Abstract
An atomic cell includes a pair of windows, and a body disposed between the pair of windows and forming an inner space in which alkali metal atoms are sealed along with the pair of windows. The inner space has a longitudinal shape in which a cross-section perpendicular to an arranging direction of the pair of windows extends in a first direction. Further, when a length of the inner space in a second direction perpendicular to the first direction in the cross-section is set to L1, and a length of the inner space in the first direction is set to L2, a relationship of L2/L1≧1.1 is satisfied.
Claims13
An atomic cell comprising:
- a pair of windows;
- a body disposed between the pair of windows, the pair of windows and the body cooperatively forming an inner space;
- and
- metal atoms sealed within the inner space, wherein the inner space has lengths L1 and L2 in directions perpendicular to each other in a cross-section of the inner space that intersects a direction in which the pair of windows are arranged, and
- L2/L1≧1.1.
An atomic resonance transition device comprising:
- an atomic cell including:
- a pair of windows;
- a body disposed between the pair of windows and forming an inner space with the pair of windows;
- and
- metal atoms sealed within the inner space,
- wherein the inner space has lengths L1 and L2 in directions perpendicular to each other in a cross-section of the inner space intersecting a direction in which the pair of windows are arranged, and
- L2/L1≧1.1,
- wherein a longitudinal portion of the inner space having the cross-section extends in the direction in which the pair of windows are arranged;
- and
- a light emitting unit that emits light including a pair of resonance light beams for resonating the metal atoms toward the atomic cell,
- wherein the longitudinal portion includes a metal reservoir at which liquid or solid metal atoms are disposed at one end in a longitudinal direction, and
- wherein a distance between an inner wall surface of the body and the light is D1, and a distance between the liquid or solid metal atoms disposed at the metal reservoir and the light is D2, and
- 2×D1≦D2.
An atomic resonance transition device comprising:
- an atomic cell that includes an inner space in which metal atoms are sealed;
- and
- a light emitting unit that emits light including a pair of resonance light beams for resonating the metal atoms toward the atomic cell,
- wherein the inner space includes a metal reservoir at which liquid or solid metal atoms are disposed, the metal reservoir being at part of a wall surface of the inner space, and
- wherein a distance between the wall surface of the inner space and the light is D1, and a distance between the liquid or solid metal atoms disposed at the metal reservoir and the light is D2, and
- 2×D1≦D2.
Dependencies are inferred from the claim text.