activity
20042022
most citedDispersion Measurement of Ultra-High Numerical Aperture Fibers covering Thulium, Holmium, and Erbium Emission Wavelengths

112 citations · 454 across the 18 of their papers we have counts for

collaborators

18 papers

physics.optics2022

Time-resolved THz Stark spectroscopy

Bong Joo Kang, Egmont J. Rohwer, David Rohrbach +12

We introduce THz Stark spectroscopy by using intense single-cycle terahertz pulses as the electric field source and monitoring the induced spectral response of an isotropic molecul…

physics.optics2022

Wideband dispersion-free THz waveguide platform

David Rohrbach, Bong Joo Kang, Elnaz Zyaee +1

We present an integrated THz spectroscopy and sensing platform featuring low loss, vacuum-like dispersion, and strong field confinement in the fundamental mode. Its performance was…

physics.chem-ph2022★ 76 cited

Structure, Organization and Heterogeneity of Water-Containing Deep Eutectic Solvents

Kai Töpfer, Andrea Pasti, Anuradha Das +6

The spectroscopy and structural dynamics of a deep eutectic mixture (KSCN/acetamide) with varying water content is investigated from 2D IR (with the C-N stretch vibration of the SC…

cond-mat.mtrl-sci2022

Metastable defects decrease the fill factor of solar cells

Thomas Paul Weiss, Omar Ramírez, Stefan Paetel +4

Cu(In,Ga)Se2 based solar cells exceed power conversion efficiencies of 23 %. Yet, the fill factor of these solar cells, with best values around 80 %, is relatively low (Si reaches…

physics.optics2020★ 18 cited

Generalized spectral phase-only time-domain ptychographic phase reconstruction applied in nonlinear microscopy

George Dwapanyin, Dirk Spangenberg, Alexander Heidt +4

Nonlinear microscopy has evolved over the last few decades to become a powerful tool for imaging and spectroscopic applications in biological sciences. In this study, IPIE, a n…

physics.optics2020★ 15 cited

Implementation of temporal ptychography algorithm, IPIE, for improved single-beam coherent anti-Stokes Raman scattering measurements

Ruan Viljoen, Pieter Neethling, Dirk Spangenberg +4

We present an improvement on the signal-to-background of single-beam coherent anti-Stokes Raman scattering (SB-CARS) spectroscopy measurements for systems employing ultrafast super…