Markus Krutzik

Group Leader, Optical Metrology Group at Humboldt-Universität zu Berlin

Markus Krutzik is a group leader of the Optical Metrology Group at Humboldt-Universität zu Berlin (Berlin, Germany).

FIGURE 1. A palm-sized box houses a rubidium-based optical frequency reference with a stability of 10-12 in one second.
Oct. 19, 2022
A small vapor cell inside a tiny box with a diode laser can deliver what may be at the heart of many future satellites—an optical frequency reference with high stability and low...
FIGURE 1. Satellite based quantum communication: entangled photons are generated on-board the satellite and sent to two ground stations for secret key generation.
Feb. 7, 2022
Designing a globe-spanning network for quantum key distribution requires a different way of thinking. It is about space, entangled photons, and how to store them.
(Credit: NASA)
On May 24, 2018, the Northrop Grumman (formerly Orbital ATK) Cygnus spacecraft arrived at the International Space Station. The vehicle carried, among other things, NASA’s Cold Atom Laboratory.
Jan. 27, 2021
Qualifying a versatile ultracold atom experiment for the International Space Station requires many steps, with integrated laser systems playing a key role.