April 2013, Improved Rb 2D-MOT
In the last month we have considerably improved the loading rate from our Rb 2D-MOT to the 3D-MOT, by making considerable changes in our vacuum setup, and implementing a 2-color push beam scheme.
November 2012, Two-species MOT
Our first two-species MOT, showing the loading time of the He* MOT after having loaded the Rb MOT (MOT signals both on arbitrary scale).
October 2012, Rb 3D-MOT
First signal of Rb 3D-MOT, check also this video in which we modulate the repumper.
September 2012, Rb 2D-MOT
Very first signal of cold Rb atoms in our 2D-MOT
September 2012, 2D-MOT coil
Nicely wrapped coils for the 2D-MOT, producing 4 G/cm/A
August 2012, 2D-MOT glas cell
The 2D-MOT glass cell is attached to the main vacuum chamber
March 2012, He* in magnetic trap
He* atoms transferred from MOT to quadrupole magnetic trap (MT).
February 2012, He* MOT
Our first He* MOT (fluorescence captured by Xeva InGaAs camera)
January 2012, working on the optics
Compact MOT beam set up (Heidelberg design)
1083 nm laser optics: output fiber amplifier (green), Zeeman slower AOM (red) and MOT AOM (black)
September 2011, 780nm lasers arrived
Glimps of Rb spectroscopy setup to lock TA pro laser (with Digilock)
Augustus 2011, He* discharge operating again
Liquid nitrogen cooled He* discharge source
June 2011, official start VIDI project
Stripped He* setup, made available by Wim Vassen
Inside the He* setup: two MCP's to count ions and metastable atoms