1. BioCentrum Amsterdam, University of Amsterdam, Institute of Molecular Cell Biology, Kruislaan 316, 1098 SM Amsterdam, The Netherlands,
2. Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, U.S.A.,
3. Carl Zeiss Jena GmbH, Zeiss Group, D‐07740 Jena, Germany,
4. Friedrich Schiller University Jena, Institute of Optics and Quantumelectronics, Max‐Wien‐Platz 1, 07743 Jena, Germany
5. 0