Quantum Sensing & Defect Discovery and Spectroscopy lab

Welcome

Welcome to the webpage of the Quantum Sensing & Defect Discovery and Spectroscopy lab at the Mechanical & Materials Engineering Department, University of Nebraska-Lincoln. Our research interests lie at the intersection of experimental condensed matter physics with quantum optics and materials science to tackle outstanding challenges in nanoscale metrology, quantum computing, and physical science. We are pursuing three-main directions: i) Quantum Sensing using  nitrogen vacancy centers in diamond (nanoscale probing of condensed matter physics phenomena, biosensing); ii) exploring novel solid-state materials based on color centers in wide bandgap semiconductors and two dimensional materials for quantum sensing, quantum computing, optoelectronics, and spintronics applications; iii) coupling disant spin qubits using magnetic and optical cavities for scalable quantum networks. 

Recent News:

January 13th, 2020. Adam Erickson and Wai Kiat (Walter) Chin joined our group as graduate students and will work on quantum microscopy using color centers in diamond  for nanoscale imaging of spin textures, spin dyanmics, and spin currents in magnetic nanomaterials, low dimensional materials, and thin films/multilayers. Welcome Adam and Walter! 

October 21st, 2019. We have been awarded NSF MRSEC seed to map room-temperature skyrmions in ferromagnetic multilayers and ferrimagnetic spinels using diamond scanning probe microscopy!

October 16th, 2019. Abdelghani gave a seminar at Nebraska Center of Materials and Nanoscience on his recent and ongoing research at UNM and UNL on diamond quantum sensing.

August 1st, 2019. We are starting NSF-DMR grant #1809800 throught 8/31/2021 to study transition-metal nanoparticles (size < 20 nm) using time resolved diamond magnetic microscopy.

August 1st, 2019. Our labs at University of Nebraska-Lincoln open for business

Check out our recent papers:

J. Smits, et al., Sub-Hertz two dimensional NMR spectroscopy of molecules using Nitrogen Vacancy centers in diamond, Science Advances 5 eaaw7895 (2019). In the news: UNM, Phys.org

D. Kikuchi, et al., Long-distance excitation of nitrogen-vacancy centers in diamond via surface spin waves,  Applied Physics Express, 10 103004 (2017).

P. Kehayias, et al., Solution nuclear magnetic resonance spectroscopy on a nanostructured diamond chip, Nature Communications 8, 108 (2017). In the news: CHTM-UNM

A. Laraoui, et al., Imaging thermal conductivity with nanoscale resolution using a scanning spin probe, Nature Communications 6, 8954 (2015). In the news: CCNY

M. E. Trusheim, L. Li, A. Laraoui, et al., Scalable Fabrication of High Purity Diamond Nanocrystals with Long-Spin-Coherence Nitrogen Vacancy Centers, Nano Letters, 14 (1), 32-36 (2014). In the News: NanoTechWeb, PhysicsWorld, Nature News Feature

A. Laraoui, et al., High-Resolution Correlation Spectroscopy of 13C Spins Near a Nitrogen-Vacancy Center in Diamond,” Nature Communications 4, 1651 (2013).

Location:

Our labs are located at Scott Engineering building (Lab 127.4A, Lab 250), 844 N 16th St, Lincoln, NE 68508. We have access to world-class facilities, including the Nebraska Center for Materials and Nanoscience (NCMN) and Nano-Engineering Research Core Facility (NERCF) at UNL’s College of Engineering.  

Opennings: 

We are hiring postdocs, undergraduates and graduate students to join our lab. Contact Dr. Laraoui at alaraoui2@unl.edu for more details how to apply or just stop by his office 312, located at Nebraska Hall.