Physical section of atomic oscillator

Details Physical section of atomic oscillator Physical section of atomic oscillator

2011-08-16

2011-08-16

Pascal, Robert (Department: 2817)

Oscillators

Molecular or particle resonant type

C331S003000, C250S251000

Reexamination Certificate

active

07999626

ABSTRACT:
A physical section of an atomic oscillator includes at least: a gas cell including a cylindrical portion and first and second windows respectively hermetically-closing openings of both sides of the cylindrical portion to form a cavity in which gaseous metal atoms are sealed; a light reflection unit disposed on the first window; a first heating unit disposed to be closely attached to the second window and heating the gas cell at a predetermined temperature; a light source disposed so as to allow a light emitting part thereof to face the light reflecting unit, emitting excitation light exciting the metal atoms in the gas cell, and provided on a side, which is a reverse side to a side to which the gas cell is provided, of the first heating unit; a light detection unit detecting the excitation light reflected by the light reflection unit and provided also on a side, which is a reverse side to a side to which the gas cell is provided, of the first heating unit; and a Peltier element interposed between the light source and the first heating unit, and between the light detection unit and the first heating unit.

REFERENCES:
patent: 6320472 (2001-11-01), Vanier
patent: 6806784 (2004-10-01), Hollberg et al.
patent: 7652473 (2010-01-01), Kawabata
patent: 6-120584 (1994-04-01), None
patent: 10-284772 (1998-10-01), None

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