3 papers
physics.optics2019
Understanding the image contrast of material boundaries in IR nanoscopy reaching 5 nm spatial resolution
Stefan Mastel, Alexander A. Govyadinov, Curdin Maissen +3
Scattering-type scanning near-field optical microscopy (s-SNOM) allows for nanoscale resolved Infrared (IR) and Terahertz (THz) imaging, and thus has manifold applications ranging…
cond-mat.mes-hall2018
Nano-imaging of intersubband transitions in van der Waals quantum wells
Peter Schmidt, Fabien Vialla, Simone Latini +11
The science and applications of electronics and optoelectronics have been driven for decades by progress in growth of semiconducting heterostructures. Many applications in the infr…
physics.optics2018
THz nanofocusing with cantilevered THz-resonant antenna tips
S. Mastel, M. Lundeberg, P. Alonso-Gonzalez +7
We developed THz-resonant scanning probe tips, yielding strongly enhanced and nanoscale confined THz near fields at their tip apex. The tips with length in the order of the THz wav…