Abstract: A quantum interference device includes an atomic cell which has an internal space enclosing an alkali metal, a first light source which emits a resonance light pair that is circularly polarized in the same direction as each other and excites the alkali metal, a second light source which emits an adjustment light, and a light receiver, wherein the atomic cell includes an inner wall surface which is formed of a material containing a compound having a polar group and surrounds the internal space, a first layer which is provided on the inner wall surface and contains a compound derived from a first compound having a functional group that undergoes an elimination reaction with the polar group, and a second layer which is provided on the first layer and contains a compound derived from a second compound that is a nonpolar olefin-based polymer.

Abstract: An atom cell is provided with an internal space including a space formed of a through hole housing gaseous alkali metal, a space formed of a through hole housing a compound as an alkali metal emission material, and a space formed of a through hole housing liquid or solid alkali metal.

Abstract: An atom cell is provided with an internal space including a space formed of a through hole housing gaseous alkali metal, a space formed of a through hole housing a compound as an alkali metal emission material, and a space formed of a through hole housing liquid or solid alkali metal.

Abstract: A quantum interference device includes: an atomic cell in which alkali metal is sealed; a light source that emits light that excites the alkali metal; a light source temperature adjuster that adjusts temperature of the light source; a light receiver that receives light transmitted through the atomic cell and outputs an output signal in accordance with a light reception intensity; a detector that outputs an output signal in accordance with a chronological change in an amount of the light transmitted through the atomic cell based on the output signal of the light receiver; and a light source temperature controller that controls driving of the light source temperature adjuster based on the output signal of the detector.

Abstract: An atomic oscillator includes a gas cell, a semiconductor laser, and a frequency modulation signal generation section (such as a frequency transform circuit) which generates a frequency modulation signal for causing the semiconductor laser to generate frequency-modulated light including a resonance light pair (first-order sideband light pair) that causes an electromagnetically induced transparency phenomenon in metal atoms. When a modulation index of the frequency modulation signal, by which a first-order differential value of oscillation frequency deviation of the atomic oscillator becomes 0, is regarded as a first modulation index, the modulation index is within a range between a second modulation index, which is smaller than the first modulation index, with which the oscillation frequency deviation is 0 and a third modulation index, which is greater than the first modulation index, with which the oscillation frequency deviation is 0.

Abstract: An atomic cell is filled with an alkali metal therein and includes an inner wall which is formed from a material containing a compound having a polar group, a first coating layer which coats the inner wall and is formed from a first molecule having a nonpolar group and a functional group that undergoes an elimination reaction with the polar group, and a second coating layer which coats the first coating layer and is formed from a nonpolar second molecule, wherein the second molecule is polypropylene, polyethylene, or polymethylpentene.

Abstract: An atomic cell includes an internal space in which alkali metals are encapsulated, a coating film formed on the wall surface of the internal space, holes that allow the internal space and the outside to communicate with each other, and coating members having surfaces that face the internal space along openings of the holes on the internal space side and formed of a coating material having a characteristic same as or similar to a characteristic of the coating film.

Abstract: An atomic oscillator includes a pair of window units, a wall extending between the pair of window units and forming a first space in which alkali metal in a gas state is housed with the pair of window units, and a second space communicating with the first space and provided in a position with the wall between the first and second spaces and housing alkali metal in a liquid or solid state.

Abstract: An atomic cell includes: alkaline metallic atoms, a body portion and window portions forming an inner space in which alkaline metallic atoms are sealed, and a getter material disposed in the inner space. The getter material is an alloy including at least one of titanium, barium, tantalum, zirconium, aluminum, vanadium, indium, and calcium, or an Al—Zr—V—Fe based alloy.

Abstract: An atom cell is provided with an internal space including a space formed of a through hole housing gaseous alkali metal, a space formed of a through hole housing a compound as an alkali metal emission material, and a space formed of a through hole housing liquid or solid alkali metal.

Abstract: An atomic cell includes: metallic atoms; a body portion having a through hole; window portions that are bonded to the body portion and form an inner space where the metallic atoms are sealed together with the body portion; a communication hole that communicates with the inner space and forms a groove and a hole; and a sealing portion that is disposed at a position that overlaps a bonding portion of the body portion and one window portion in a plan view seen in a direction where the body portion and the window portions are overlapped and blocks the communication hole by fusion.

Abstract: An atomic cell includes: alkaline metallic atoms, a body portion and window portions forming an inner space in which alkaline metallic atoms are sealed, and a getter material disposed in the inner space. The getter material is an alloy including at least one of titanium, barium, tantalum, zirconium, aluminum, vanadium, indium, and calcium, or an Al—Zr—V—Fe based alloy.

Abstract: An atomic cell includes: metallic atoms; a body portion having a through hole; window portions that are bonded to the body portion and form an inner space where the metallic atoms are sealed together with the body portion; a communication hole that communicates with the inner space and forms a groove and a hole; and a sealing portion that is disposed at a position that overlaps a bonding portion of the body portion and one window portion in a plan view seen in a direction where the body portion and the window portions are overlapped and blocks the communication hole by fusion.

Abstract: An atomic cell includes an internal space in which alkali metals are encapsulated, a coating film formed on the wall surface of the internal space, holes that allow the internal space and the outside to communicate with each other, and coating members having surfaces that face the internal space along openings of the holes on the internal space side and formed of a coating material having a characteristic same as or similar to a characteristic of the coating film.

Abstract: An atomic oscillator includes a gas cell, a semiconductor laser, and a frequency modulation signal generator generating a frequency modulation signal causing the semiconductor laser to generate frequency-modulated light including a first-order sideband light pair causing an electromagnetically induced transparency phenomenon in metal atoms. When a modulation level of frequency modulation changes from low to high, a modulation level at a time when the first-order sideband light is maximized for the first time is represented as m1, a modulation level at a time when intensity of light with a center frequency becomes equal to or higher than intensity of the first-order sideband light for the first time after decreasing to be lower than the intensity of the first-order sideband light for the first time is represented as m2, and intensity of the frequency modulation signal is set such that the modulation level is higher than m1 and lower than m2.

Abstract: An atomic oscillator includes a pair of window units, a wall extending between the pair of window units and forming a first space in which alkali metal in a gas state is housed with the pair of window units, and a second space communicating with the first space and provided in a position with the wall between the first and second spaces and housing alkali metal in a liquid or solid state.

Abstract: When three-dimensional images are displayed on various display apparatuses, the images are displayed in a state that allows for stereoscopic vision even if the size of the display apparatus is large or even if the resolution of the display apparatus is low. The apparatus includes: a decision means for deciding based on the standard information contained in the control information whether the amount of parallax on the display screen when three-dimensional image data is displayed is greater than the amount of parallax on the optimal display apparatus for displaying the three-dimensional image data; and an image processing means for implementing an image process for changing the amount of parallax, and adjusts the amount of parallax of three-dimensional images in accordance with the ratio between the pitch between dots of the standard display apparatus for displaying three-dimensional images and the pitch between dots of an own terminal.

Abstract: An atomic oscillator that controls an oscillation frequency by using an optical absorption property derived from a quantum interference effect occurring when two kinds of resonance light are made incident as coherent light having different wavelengths from each other, includes an optical system that includes: a gas cell sealing metal atoms in a gas state therein; a coherent light source for supplying the resonance light to the metal atoms being in the gas cell; and a light detector for detecting light transmitted through the gas cell. In the atomic oscillator, a first refraction unit is formed at a light incident side, on which coherent light is made incident, of the gas cell.

Abstract: An atomic oscillator that controls an oscillation frequency by using an optical absorption property derived from a quantum interference effect occurring when two kinds of resonance light are made incident as coherent light having different wavelengths from each other, includes an optical system that includes: a gas cell sealing metal atoms in a gas state therein; a coherent light source for supplying the resonance light to the metal atoms being in the gas cell; and a light detector for detecting light transmitted through the gas cell. In the atomic oscillator, a first refraction unit is formed at a light incident side, on which coherent light is made incident, of the gas cell.

Abstract: When three-dimensional images are displayed on various display apparatuses, the images are displayed in a state that allows for stereoscopic vision even if the size of the display apparatus is large or even if the resolution of the display apparatus is low. The apparatus includes: a decision means for deciding based on the standard information contained in the control information whether the amount of parallax on the display screen when three-dimensional image data is displayed is greater than the amount of parallax on the optimal display apparatus for displaying the three-dimensional image data; and an image processing means for implementing an image process for changing the amount of parallax, and adjusts the amount of parallax of three-dimensional images in accordance with the ratio between the pitch between dots of the standard display apparatus for displaying three-dimensional images and the pitch between dots of an own terminal.