Characterization of a Zeeman Slower Designed for a 87 Sr Optical Clock
Author
Summary, in English
Optical clocks will potentially become the new frequency standard for the
SI-definition of the second. Many national metrology institutes around the
world have already implemented different versions of such clocks and others
are in process of doing so. At SP Technical Research Institute of Sweden,
this process has recently begun. This thesis investigates the properties of the
Zeeman slower that is to be used as part of the clock. A simple Gaussmeter
was constructed from a semiconductor Hall sensor and used to measure the
magnetic field profile of the slower. This report also contains the design for an
electronic control circuit based on the Arduino platform, which can be used
to control the magnetic field. The results showed that the particular slower
investigated here will likely not need a control circuit. However, the control
circuit can be used in other optical clocks or even in other applications.
SI-definition of the second. Many national metrology institutes around the
world have already implemented different versions of such clocks and others
are in process of doing so. At SP Technical Research Institute of Sweden,
this process has recently begun. This thesis investigates the properties of the
Zeeman slower that is to be used as part of the clock. A simple Gaussmeter
was constructed from a semiconductor Hall sensor and used to measure the
magnetic field profile of the slower. This report also contains the design for an
electronic control circuit based on the Arduino platform, which can be used
to control the magnetic field. The results showed that the particular slower
investigated here will likely not need a control circuit. However, the control
circuit can be used in other optical clocks or even in other applications.
Publishing year
2015
Language
English
Full text
- Available as PDF - 11 MB
- Download statistics
Document type
Student publication for Bachelor's degree
Topic
- Physics and Astronomy
Keywords
- metrology
- time
- frequency
- atomic clock
- optical clock
- strontium
- frequency comb
- zeeman slower
- arduino
Supervisor
- Mathieu Gisselbrecht
Scientific presentation