Dr. Law’s research group focuses on creating new materials and new structures to control infrared and terahertz light. We work in the fields of plasmonics, metamaterials, and topological materials. 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. 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 slaw@udel.edu.


12/01/2019 Md Nazmul Alam and Yongchen Liu, new MSEG graduate students, join the lab. Welcome, Nazmul and Yongchen!

11/08/2019 Dongxia successfully defends her thesis. Congratulations, Dongxia!

8/27/2019 Tess successfully defends her thesis and is the first Ph.D. graduate from the Law lab. Congratulations, Tess!

7/3/2019 Dr. Law wins the Presidential Early Career Award for Scientists and Engineers. UDaily article.

5/23/2019  Tess and Patrick win the first and second place poster awards at the AVS Mid-Atlantic Chapter DC Regional Meeting. Congratulations Tess and Patrick!

5/20/2019  Saadia Nasir, an graduate student in Physics and Astronomy, joins the group. Welcome, Saadia!

3/20/2019  Max Roberts, an undergraduate student in Chemical Engineering, joins the group. Welcome, Max!

2/19/2019 Patrick and Jessica’s article “Far-field thermal emission from a semiconductor hyperbolic metamaterial” is published in Optics Letters. Congratulations Patrick and Jessica!

2/12/2019  Susan Henderson, an undergraduate student in Chemical Engineering, joins the group. Welcome, Susan!

12/01/2018  Vish Mambakkam, a new MSEG graduate student, joins the group. Welcome, Vish!

10/09/2018 Patrick and Dongxia’s article “Simultaneous Large Mode Index and High Quality Factor in Infrared Hyperbolic Metamaterials” is published in ACS Photonics. Congratulations Patrick and Dongxia!

08/31/2018 Dr. Law is part of a collaboration led by UD that received a $1 million award from the National Science Foundation to advance the state of the art in quantum computing.

08/31/2018 Tess, Yong, and Daniel’s article “Dirac plasmons and beyond: the past, present, and future of plasmonics in 3D topological insulators” is published in MRS Communications. Congratulations Tess, Yong, and Daniel!

08/27/2018  Greeshma Chandan joins the group as a new postdoc. Welcome, Greesh!

08/07/2018  Yong’s article “Optical properties of (Bi1-xInx)2Se3 thin films” is published in Optical Materials Express and chosen as an Editor’s Pick.  Congratulations Yong!

05/21/2018 Tess wins a Graduate Fellowship supported by the NASA Delaware Space Grant College and Fellowship Program.  Congratulations, Tess!

04/18/2018  Tess’ article “Coupled Dirac plasmons in topological insulators” is published in Advanced Optical Materials.  Congratulations Tess!

01/30/2018  Yong and Tess’ article “Growth of high-quality Bi2Se3 topological insulators using (Bi1-xInx)2Se3 buffer layers” was published in JVSTB and chosen as an Editor’s Pick.  Congratulations Yong and Tess!