Postdoctoral Research Fellow
Office: B&H 202
Lab: B&H 032, 031
Email: johanna_kolbel@brown.edu
Google Scholar Profile

Research Summary

Terahertz time-domain spectroscopy, terahertz-pump – terahertz-probe spectroscopy, and porous media applications

Selected Publications

“Terahertz-induced nonlinear response in ZnTe,” Felix Selz, Johanna Kölbel, Felix Paries, Georg von Freymann, Daniel Molter, and Daniel M. Mittleman, Optics Express, accepted (2025).

“Terahertz near-field imaging of buried structures,” Pingchuan Ma, Johanna Koelbel, Ji-Feng Ying, J.-H. Lin, Angela Pizzuto, and Daniel M. Mittleman, Optics Express, 32, 39785-39792 (2024).

“Is Ortho-Terphenyl a Rigid Glass Former?” Johanna Koelbel, Michael Ruggiero, Shachar Keren, Nimrod Benshalom, Omer Yaffe, J. Axel Zeitler, and Daniel M. Mittleman, Journal of Physical Chemistry Letters, 15, 7020-7027 (2024).

“Terahertz signatures of the methane replacement reaction in hydroquinone clathrates,” Katharine D. Bancroft, Saheed Ajibade, Michael T. Ruggiero, Johanna Kölbel and Daniel M. Mittleman, Journal of Physical Chemistry Letters, 15, 6092-6098 (2024).

“Terahertz Spectroscopy Unambiguously Determines the Orientation of Guest Water Molecules in a Structurally Elusive Metal-Organic Framework,” Saheed Ajibade, Luca Catalano, Johanna Kölbel, Daniel M. Mittleman, and Michael T. Ruggiero, Journal of Physical Chemistry Letters, 15, 5549-5555 (2024).

“3D-printed photonic crystal sub-terahertz leaky-wave antenna,” Hichem Guerboukha, Masoud Sasaki, Rabi Shrestha, Jingwen Li, Johanna Kölbel, Niels Benson, and Daniel M. Mittleman, Advanced Materials Technologies, 9, 2300698 (2024).