THz generation using a reflective stair-step echelon

by Ofori-Okai, Benjamin Kwasi, Sivarajah, Prasahnt, Huang, Wenqian, Nelson, Keith Adam
Published 2017

What is the Brillouin zone of an anisotropic photonic crystal?

by Sivarajah, Prasahnt, Maznev, Alexei, Ofori-Okai, Benjamin Kwasi, Nelson, Keith Adam
Published 2016

Chemically assisted femtosecond laser machining for applications in LiNbO[subscript 3] and LiTaO[subscript 3]

by Sivarajah, Prasahnt, Werley, Christopher Alan, Ofori-Okai, Benjamin Kwasi, Nelson, Keith Adam
Published 2016

Analysis of terahertz generation by beamlet superposition

by Ravi, Koustuban, Ofori-Okai, Benjamin Kwasi, Nelson, Keith Adam, Kaertner, Franz X
Published 2020

The homogenization limit and waveguide gradient index devices demonstrated through direct visualization of THz fields

by Sivarajah, Prasahnt, Teo, Stephanie M, Werley, Christopher A, Ofori-Okai, Benjamin Kwasi, Nelson, Keith Adam
Published 2015

Imaging of terahertz fields and responses

by Sivarajah, Prasahnt, Teo, Stephanie M., Werley, Christopher A., Nelson, Keith Adam, Ofori-Okai, Benjamin Kwasi
Published 2015

Direct experimental visualization of waves and band structure in 2D photonic crystal slabs

by Ofori-Okai, Benjamin Kwasi, Sivarajah, Prasahnt, Werley, Christopher A., Teo, Stephanie M., Nelson, Keith Adam
Published 2014

Nonlinear two-dimensional terahertz photon echo and rotational spectroscopy in the gas phase

by Fleischer, Sharly, Lu, Jian, Zhang, Yaqing, Hwang, Harold Y., Ofori-Okai, Benjamin Kwasi, Nelson, Keith Adam
Published 2017

Macroscopic Ionic Flow in a Superionic Conductor Na+ β-Alumina Driven by Single-Cycle Terahertz Pulses

by Minami, Yasuo, Ofori-Okai, Benjamin Kwasi, Sivarajah, Prasahnt, Katayama, Ikufumi, Takeda, Jun, Nelson, Keith Adam, Suemoto, Tohru
Published 2021

Coherent Two-Dimensional Terahertz Magnetic Resonance Spectroscopy of Collective Spin Waves

by Kurihara, Takayuki, Suemoto, Tohru, Lu, Jian, Li, Xian, Hwang, Harold Y., Ofori-Okai, Benjamin Kwasi, Nelson, Keith Adam
Published 2017

Dynamics of a Persistent Insulator-to-Metal Transition in Strained Manganite Films

by Teitelbaum, Samuel Welch, Ofori-Okai, Benjamin Kwasi, Cheng, Yu-Hsiang, Zhang, Jingdi, Jin, Feng, Wu, Wenbin, Averitt, Richard D., Nelson, Keith Adam
Published 2021

Rapid and precise determination of zero-field splittings by terahertz time-domain electron paramagnetic resonance spectroscopy

by Lu, Jian, Ozel, Ilkem Ozge, Belvin, Carina Aiello, Li, Xian, Skorupskii, Grigorii, Sun, Lei, Ofori-Okai, Benjamin Kwasi, Dinca, Mircea, Gedik, Nuh, Nelson, Keith Adam
Published 2018

Transient terahertz photoconductivity measurements of minority-carrier lifetime in tin sulfide thin films: Advanced metrology for an early stage photovoltaic material

by Sher, Meng-Ju, Yang, Chuanxi, Hartman, Katy, Lindenberg, Aaron M., Gordon, Roy G., Jaramillo, Rafael, Ofori-Okai, Benjamin Kwasi, Steinmann, Vera, Nelson, Keith Adam, Buonassisi, Tonio
Published 2016

Spin properties of very shallow nitrogen vacancy defects in diamond

by Ofori-Okai, Benjamin Kwasi, Tao, Ye, Ph. D. Massachusetts Institute of Technology, Pezzagna, S., Chang, K., Loretz, M., Schirhagl, R., Moores, B. A., Groot-Berning, K., Meijer, J., Degen, Christian
Published 2012

The impact of sodium contamination in tin sulfide thin-film solar cells

by Yang, Chuanxi, Polizzotti, Alex, Gordon, Roy G., Steinmann, Vera, Brandt, Riley E, Chakraborty, Rupak, Jaramillo, Rafael, Young, Matthew C., Ofori-Okai, Benjamin Kwasi, Nelson, Keith Adam, Buonassisi, Anthony
Published 2017