Dr. Law’s research group focuses on understanding and synthesizing quantum materials and heterostructures to realize devices with novel, designer photonic properties. Most of our research focuses on working with long wavelength light from the mid-infrared through the terahertz. Our materials can squeeze light into tiny volumes, make light bend backward, and slow light down. These devices have applications in thermal and biological imaging, infrared and terahertz detectors, chemical sensing, environmental monitoring, security and defense, and quantum computing.
The materials and and structures we create are grown using molecular beam epitaxy, a technique in which a material is grown one atomic layer at a time–3D printing at the nanoscale. With this technique, we can create extremely high quality materials and complicated structures. Molecular beam epitaxy is widely used in industry to create lasers and light emitting diodes, among other devices. Prof. Law describes what molecular beam epitaxy is in this video. After growth, the materials are characterized using the shared equipment in the Advanced Materials Characterization Lab, the Center for Advanced Microscopy and Microanalysis, and the University of Delaware Nanofabrication Facility.
Highly-motivated graduate or undergraduate students in Materials Science and Engineering, Physics, or Electrical Engineering who are interested in joining the group should contact Dr. Law at email@example.com. You can also follow us on twitter @SLawLabUD
1/1/2022 Shagorika Mukherjee joins the group. Welcome, Shagorika!
11/17/2021 Saadia’s article “In-plane plasmon coupling in topological insulator Bi2Se3 thin films“ is published in Applied Physics Letters in collaboration with Zhengtianye Daniel Wang and Sivakumar Vishnuvardhan Mambakkam. Congratulations to Saadia and the team!
11/01/2021 Daniel’s article “Optimization of the Growth of the Van der Waals Materials Bi2Se3 and (Bi0.5In0.5)2Se3 by Molecular Beam Epitaxy” is published in Crystal Growth & Design. Congratulations to Daniel!
07/20/2021 Vishnu’s article “Growth of topological insulator Bi2Se3 particles on GaAs via droplet epitaxy” is published in Journal of Vacuum Science and Technology A in collaboration with the Zide group. Congratulations to Vish, Saadia, and Wilder!
05/27/21 Patrick graduates with his Ph.D. Congratulations, Patrick!
03/29/2021 Daniel wins the MSEG Outstanding Graduate Student Research Assistant Award. Congratulations, Daniel!
03/11/2021 Vishnu’s article “Fabrication of topological insulator nanostructures“wins the 2020 AVS Shop Notes Award. Congratulations, Vish!
03/09/2021 Theresa’s article “Self-assembled nano-columns in Bi2Se3 grown by molecular beam epitaxy” is published in the Journal of Vacuum Science and Technology A. Congratulations to Theresa!
03/08/2021 Daniel wins a Best Student Presentation Award for Symposium NM02 at Fall 2020 MRS for his presentation “Plasmonics in Coupled Topological Insulator Heterostructures”. Congratulations, Daniel!
03/07/2021 Prof. Law wins the International Conference on Molecular Beam Epitaxy (ICMBE) Young Investigator Award.
1/04/2021 Mingyu Yu, a graduate student in MSEG, joins the group. Welcome, Mingyu!
11/17/2020 Patrick’s article “Structural parameters of hyperbolic metamaterials controlling high-k mode resonant wavelengths” is published in the Journal of the Optical Society of America B. Congratulations Patrick!
11/9/2020 Daniel’s article “Plasmon coupling in topological insulator multilayers” is published in Physical Review Materials in collaboration with the Ni group at UD. Congratulations to Daniel, Theresa, Vishnu, and Greeshma!
11/5/2020 Yong’s article “Propagating Dirac plasmon polaritons in topological insulators” is published in the Journal of Optics. Congratulations Yong!
10/6/2020 Christina Li, a CISC undergraduate student, joins the group. Welcome, Christina!
9/23/2020 The Law group collaborated with the Xiao and Doty groups at UD to publish “One-dimensional antilocalization of electrons from spin disorder probed by nonlinear Hall effect” in Physical Review B. Congratulations to all!
9/17/2020 Logan Whitesel, an MSEG undergraduate student, joins the group. Welcome, Logan!
7/21/2020 Vishnu’s article “Fabrication of topological insulator nanostructures” is published in the Journal of Vacuum Science and Technology B. Congratulations Vish!
6/23/2020 Prof. Law is promoted to Associate Professor with Tenure.
6/17/2020 Yong successfully defends his thesis. Congratulations, Yong!
6/1/2020 Sebastian Miki-Silva and Neel Shah join the group as summer REU students. Welcome, Sebastian and Neel!
4/10/2020 Crystal’s article “Improved epitaxial growth of TbAs film on III–V semiconductors” is published in the Journal of Vacuum Science and Technology A in collaboration with the Zide group at UD. Congratulations Crystal!
4/9/2020 Crystal wins the MSEG Outstanding Graduate Student Research Award and Patrick wins the UD Dissertation Fellowship. Congratulations to both!
2/7/2020 Tess’ article “Epitaxial growth of Bi2Se3 in the (0015) orientation on GaAs (001)” is published in the Journal of Vacuum Science and Technology A in collaboration with the Ni group at UD. Congratulations Tess!
1/21/2020 Crystal’s article “Extending the Tunable Plasma Wavelength in III–V Semiconductors from the Mid‐Infrared to the Short‐Wave Infrared by Embedding Self‐Assembled ErAs Nanostructures in GaAs” is published in Advanced Optical Materials in collaboration with the Zide group at UD. Congratulations Crystal!
1/19/2020 Dongxia and Patrick’s article “Enlarged growth window for plasmonic silicon-doped InAs using a bismuth surfactant” is published in Optical Materials Express in collaboration with the Bank group at UT Austin. Congratulations Dongxia and Patrick!