MF

M. Forsch

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Mechanical resonators can act as excellent intermediaries to interface single photons in the microwave and optical domains due to their high quality factors. Nevertheless, the optical pump required to overcome the large energy difference between the frequencies can add signifi ...

Conversion between signals in the microwave and optical domains is of great interest both for classical telecommunication and for connecting future superconducting quantum computers into a global quantum network. For quantum applications, the conversion has to be efficient, as ...

We show a 1D optomechanical crystal fabricated from gallium phosphide. We operate this device in the quantum ground state of motion and observe non-classical correlations between photons and phonons using a DLCZ scheme.

@en

Building Blocks for Wavelength Converters

A Study of Monolithic Devices in Piezoelectric Materials

In cavity optomechanics, optical fields are coupled to the displacement of mechanical resonators. While it is interesting to study fundamental aspects of this interaction, it is the ability to link this mechanical displacement to various other degrees of freedom that inspires ma ...

Recent years have seen extraordinary progress in creating quantum states of mechanical oscillators, leading to great interest in potential applications for such systems in both fundamental as well as applied quantum science. One example is the use of these devices as transduce ...

We present coherent conversion between microwave and optical signals with
an electro-optomechanical device close to its quantum groundstate, such that less than a single quantum of noise is added to the converted signal.@en

Several experimental demonstrations of the Casimir force between two closely spaced bodies have been realized over the past two decades. Extending the theory to incorporate the behavior of the force between two superconducting films close to their transition temperature has re ...