JP2012159427A5 - - Google Patents
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- JP2012159427A5 JP2012159427A5 JP2011019960A JP2011019960A JP2012159427A5 JP 2012159427 A5 JP2012159427 A5 JP 2012159427A5 JP 2011019960 A JP2011019960 A JP 2011019960A JP 2011019960 A JP2011019960 A JP 2011019960A JP 2012159427 A5 JP2012159427 A5 JP 2012159427A5
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- Prior art keywords
- polarization
- light
- cell
- component
- photodetector
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Claims (8)
前記セルに光を出射する光源と、
前記セルを透過した前記光を、前記セルに向けて反射するミラーと、
前記ミラーで反射された光を、第１偏光成分および第２偏光成分を含む複数の偏光成分に分離する偏光分離器と、
前記第１偏光成分を検出する第１光検出器と、
前記第２偏光成分を検出する第２光検出器と
を有する磁気測定装置。 A cell containing therein a medium that changes the plane of polarization of light according to the magnetic field strength;
A light source for emitting light in front SL cells,
A mirror that reflects the light transmitted through the cell toward the cell;
A polarization separator that separates light reflected by the mirror into a plurality of polarization components including a first polarization component and a second polarization component;
A first photodetector for detecting a pre-Symbol first polarization component,
Magnetic measuring device and a second optical detector for detecting the pre-Symbol second polarization component.
ことを特徴とする請求項１に記載の磁気測定装置。 The magnetic measurement apparatus according to claim 1, wherein the polarization separator is disposed between the cell and the mirror on an optical path of the light.
前記第１偏光成分および前記第２偏光成分の偏光面は互いに直交する
ことを特徴とする請求項２に記載の磁気測定装置。 The light has a linearly polarized component when it first enters the cell;
The magnetic measurement apparatus according to claim 2, wherein polarization planes of the first polarization component and the second polarization component are orthogonal to each other.
ことを特徴とする請求項１に記載の磁気測定装置。 The magnetic measurement apparatus according to claim 1, wherein the polarization separator is disposed between the light source and the cell on an optical path of the light.
前記第１偏光成分および前記第２偏光成分の偏光面は４５°の角度をなす
ことを特徴とする請求項４に記載の磁気測定装置。 The light has a linearly polarized component when incident on the polarization separator;
The magnetic measurement apparatus according to claim 4, wherein the polarization planes of the first polarization component and the second polarization component form an angle of 45 °.
ことを特徴とする請求項１ないし５のいずれか一項に記載の磁気測定装置。 The magnetic measurement according to any one of claims 1 to 5, wherein the first photodetector and the second photodetector are arranged on the opposite side of the polarization separator as viewed from the cell. apparatus.
前記２組の光学系は、前記セルにおける光路が互いに直交するように配置される
ことを特徴とする請求項１ないし６のいずれか一項に記載の磁気測定装置。 Two sets of optical systems including the light source, the mirror, the polarization separator, the first photodetector, and the second photodetector,
The magnetic measurement apparatus according to any one of claims 1 to 6, wherein the two sets of optical systems are arranged such that optical paths in the cell are orthogonal to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011019960A JP5682344B2 (en) | 2011-02-01 | 2011-02-01 | Magnetic measuring device and biological state measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011019960A JP5682344B2 (en) | 2011-02-01 | 2011-02-01 | Magnetic measuring device and biological state measuring device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014218043A Division JP5907234B2 (en) | 2014-10-27 | 2014-10-27 | Magnetic measuring device and biological state measuring device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012159427A JP2012159427A (en) | 2012-08-23 |
| JP2012159427A5 true JP2012159427A5 (en) | 2014-03-13 |
| JP5682344B2 JP5682344B2 (en) | 2015-03-11 |
Family
ID=46840078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011019960A Expired - Fee Related JP5682344B2 (en) | 2011-02-01 | 2011-02-01 | Magnetic measuring device and biological state measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5682344B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6171355B2 (en) * | 2013-01-21 | 2017-08-02 | セイコーエプソン株式会社 | Magnetic field measuring device |
| WO2021067587A1 (en) | 2019-10-02 | 2021-04-08 | X Development Llc | Magnetometry based on electron spin defects |
| GB202016742D0 (en) * | 2020-10-22 | 2020-12-09 | Univ Birmingham | Magnetometer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007057324A (en) * | 2005-08-23 | 2007-03-08 | Nippon Telegr & Teleph Corp <Ntt> | Fiber optic measuring system |
| JP2009236599A (en) * | 2008-03-26 | 2009-10-15 | Canon Inc | Optical pumping magnetometer |
| JP5264242B2 (en) * | 2008-03-26 | 2013-08-14 | キヤノン株式会社 | Atomic magnetometer and magnetic force measurement method |
-
2011
- 2011-02-01 JP JP2011019960A patent/JP5682344B2/en not_active Expired - Fee Related
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