activity
20162025
most citedContinuously tunable pulsed Ti:Sa laser self-seeded by an extended grating cavity

14 citations · 100 across the 17 of their papers we have counts for

collaborators

17 papers

cond-mat.supr-con2025

Superconducting properties of thin film studied via the NMR of implanted Li

Md Asaduzzaman, Ryan M. L. McFadden, Edward Thoeng +10

We report measurements of the normal-state and superconducting properties of thin-film using Li -detected nuclear magnetic resonance (-NMR). In…

physics.atom-ph2025

Two-step laser resonant ionization spectroscopy of chromium

Romina Schulz, Ruohong Li, Julius Wessolek +3

At TRIUMF's off-line laser ion source test stand, stepwise resonant laser ionization spectroscopy of chromium (Cr) was carried out, to find an efficient ionization scheme suitable…

nucl-ex2025

Collinear laser spectroscopy on neutron-rich actinium isotopes

Ruohong Li, Andrea Teigelhöfer, Jiguang Li +10

High-resolution collinear laser spectroscopy of neutron-rich actinium has been performed at TRIUMF's isotope separator and accelerator facility ISAC. By probing the $\…

physics.acc-ph2025

RF phase effect in the ion-guide laser ion source (IG-LIS)

Ruohong Li, Maryam Mostamand, Jens Lassen

The effect of the phase between the radio frequency (RF) waveform driving the ion guide and the laser pulses generating ions on the intensity of the transmitted ion beam has been s…

cond-mat.supr-con2024★ 3 cited

Depth-resolved Characterization of Meissner Screening Breakdown in Surface Treated Niobium

Edward Thoeng, Md. Asaduzzaman, Philipp Kolb +12

We report direct measurements of the magnetic field screening at the limits of the Meissner phase for two superconducting Nb samples. The samples are processed with two different s…

cond-mat.mtrl-sci2023★ 1 cited

Ion-Implanted Li Nuclear Magnetic Resonance in Highly Oriented Pyrolytic Graphite

John O. Ticknor, Jonah R. Adelman, Aris Chatzichristos +13

We report -detected nuclear magnetic resonance of ultra-dilute Li implanted in highly oriented pyrolytic graphite (HOPG). The absence of motional narrowing and diffu…

cond-mat.mtrl-sci2022★ 12 cited

A New High Parallel-Field Spectrometer at TRIUMF's -NMR Facility

Edward Thoeng, Ryan M. L. McFadden, Suresh Saminathan +16

A new high field spectrometer has been built to extend the capabilities of the -detected nuclear magnetic resonance (-NMR) facility at TRIUMF. This new beamline extension all…

cond-mat.mtrl-sci2021★ 8 cited

Nuclear magnetic resonance of ion implanted Li in ZnO

Jonah R. Adelman, Derek Fujimoto, Martin H. Dehn +14

We report on the stability and magnetic state of ion implanted Li in single crystals of the semiconductor ZnO using -detected nuclear magnetic resonance. At ultradilute conc…

cond-mat.str-el2021★ 5 cited

Evolution of the metallic state of LaNiO/LaAlO superlattices measured by Li -detected NMR

V. L. Karner, A. Chatzichristos, D. L. Cortie +13

Using ion-implanted Li -detected NMR, we study the evolution of the correlated metallic state of LaNiO in a series of LaNiO/LaAlO superlattices as a function of…

physics.atom-ph2020★ 6 cited

Polarization-dependent laser resonance ionization of beryllium

Ruohong Li, Maryam Mostamand, Jekabs Romans +1

Using TRIUMF's off-line laser ion source test stand with a system of tunable titanium sapphire lasers, the polarization dependence of laser resonance ionization has been investigat…

physics.optics2020

Development of a continuously tunable titanium-sapphire laser system for the ARIEL laser ion source

Bianca Bettina Reich, Maryam Mostamand, Ruohong Li +1

A concept for continuously tunable titanium-sapphire (Ti:Sa) lasers using dispersion prisms is under investigation for the ARIEL (Advanced Rare IsotopE Laboratory) laser ion source…

physics.ins-det2020★ 9 cited

Production of clean rare isotope beams at TRIUMF Ion guide laser ion source

M. Mostamand, R. Li, J. Romans +4

Hot cavity resonant ionization laser ion sources (RILIS) provide a multitude of radioactive ion beams with high ionization efficiency and element selective ionization. However, in…

cond-mat.mtrl-sci2019★ 12 cited

Local electronic and magnetic properties of the doped topological insulators BiSe:Ca and BiTe:Mn investigated using ion-implanted Li -NMR

Ryan M. L. McFadden, Aris Chatzichristos, David L. Cortie +13

We report -detected nuclear magnetic resonance (-NMR) measurements in BiSe:Ca (BSC) and BiTe:Mn (BTM) single crystals using Li implanted t…

cond-mat.mtrl-sci2019★ 5 cited

Investigation of Ionic and Anomalous Magnetic Behavior in CrSe Using Li -NMR

John O. Ticknor, Izumi Umegaki, Ryan M. L. McFadden +12

We have studied a mosaic of 1T-CrSe single crystals using -detected nuclear magnetic resonance of Li from 4 to 300 K. We identify two broad resonances that show no evi…

cond-mat.str-el2019★ 11 cited

Local Metallic and Structural Properties of the Strongly Correlated Metal LaNiO using Li -NMR

Victoria L. Karner, Aris Chatzichristos, David L. Cortie +19

We report -detected NMR of ion-implanted Li in a single crystal and thin film of the strongly correlated metal LaNiO. In both samples, spin-lattice relaxation measur…

cond-mat.mtrl-sci2018★ 14 cited

Ionic and electronic properties of the topological insulator BiTeSe investigated using -detected nuclear magnetic relaxation and resonance of Li

Ryan M. L. McFadden, Aris Chatzichristos, Kim H. Chow +16

We report measurements on the high temperature ionic and low temperature electronic properties of the 3D topological insulator BiTeSe using ion-implanted Li -detecte…

physics.optics2016★ 14 cited

Continuously tunable pulsed Ti:Sa laser self-seeded by an extended grating cavity

Ruohong Li, Jens Lassen, Sebastian Rothe +2

A continuously tunable titanium:sapphire (Ti:Sa) laser self-seeded by an extended grating cavity was demonstrated and characterized. By inserting a partially reflecting mirror insi…