Magneto-optical Fresnel atomic trap
PTBnews 1.2021
07.01.2021
Fresnel reflector of 25.4 mm in diameter in a stainless-steel holder
In PTB’s new design, a nearly planar structure is combined with an achromatic operating principle. By periodically folding back the mirror on a plane (analogously to the principle of the Fresnel lens), it becomes possible to observe the trap volume from all sides. The surface has a sawtooth-like structure in the millimeter range. Due to its planarity, the trap can even be positioned outside a vacuum chamber for easier adjustment. (Technology Offer 514)
Advantages
free radial optical access
low-cost manufacturing
completely achromatic optical path
Contact person for questions about technology transfer
Andreas Barthel, Phone: +49 531 592-8307, 
andreas.barthel(at)ptb.de, 
www.technologietransfer.ptb.de/en