The profile of the grating slits. The schematic shows a cross section of three slits, defined by the dimensions of the Si3N4 substrate. The actual slit width, s 0, is an average value of the top and bottom slit widths.

The profile of the grating slits. The schematic shows a cross section of three slits, defined by the dimensions of the Si3N4 substrate. The actual slit width, s 0, is an average value of the top and bottom slit widths.

Source publication
Article
Full-text available
We describe the creation and characterisation of a velocity tunable, spin-polarized beam of slow metastable argon atoms. We show that the beam velocity can be determined with a precision below 1% using matter-wave interferometry. The profile of the interference pattern was also used to determine the velocity spread of the beam, as well as the Van d...

Similar publications

Article
Full-text available
While general relativity predicts only two tensor modes for gravitational-wave (GW) polarization, general metric theories of gravity allow for up to four additional modes, including two vector and two scalar modes. Observing the polarization modes of GWs could provide a direct test of the modified gravity. The stochastic GW background (SGWB), which...