2 papers
physics.optics2018
Zoomable telescope by rotation of toroidal lenses
Stefan Bernet
A novel type of a continuously zoomable telescope is based on two pairs of adjacent toroidal lenses ("saddle lenses") in combination with standard optical components. Its variable…
physics.optics2005
Nanosecond microscopy with a high spectroscopic resolution
Christoph Heinrich, Stefan Bernet, Monika Ritsch-Marte
We demonstrate coherent anti-Stokes Raman scattering (CARS) microscopy in a wide-field setup with nanosecond laser pulse excitation. In contrast to confocal setups, the image of a…