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Identifier

000443048

Title

Double compensated sub-Doppler spectroscopy for ultra-cold atom experiments

Alternative Title

Διπλά σταθμισμένη φασματοσκοπία κορεσμού απορρόφησης για πειράματα υπέρψυχρων ατόμων

Author

Εξαμιλιώτη, Πανδώρα Γ.

Thesis advisor

Μακρής, Κωνσταντίνος
Von Klitzing, Wolf

Abstract

In our work, we performed spectroscopic studies of Rubidium atoms, motivated by the need for stabilized light which cold atoms have for magneto-optical traps (MOT). First, we built saturated absorption spectroscopy for Rubidium D2 transitions at 780 nm. Then, we implemented frequency modulation using a lock-in amplifier, which detected a signal at the modulated frequency and produced an error signal that can be used to correct small changes in the laser frequency. Finally, we introduced a novel way of double subtraction of the background. By this, we achieved to have a signal that does not depend on the offset magnetic field and an error signal much more stable in possible environmental changes.

Language

English

Subject

Laser stabilization

Σταθεροποίηση Λέιζερ

Issue date

2021-11-19

Collection

School/Department--School of Sciences and Engineering--Department of Physics--Post-graduate theses

Type of Work--Post-graduate theses

Permanent Link

https://elocus.lib.uoc.gr//dlib/1/a/5/metadata-dlib-1634797139-517471-5595.tkl