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Our recent work on ‘Observation of nonvanishing optical helicity in thermal radiation from symmetry-broken metasurfaces’ has been published in Science Advances. We uncover a new method for generating spinning thermal radiation in a controlled & efficient manner using metasurfaces. Spinning thermal...

In this talk, Dr. Chen-Ting Liao introduced the topology of light – the light carrying orbital angular momentum (OAM). The OAM of light can be static, dynamic, or spatiotemporal. Static OAM of light has been known for three decades and has found numerous applications, from optical trapping, and...

A perspective paper titled " Thermal Radiation with a Twist" has been selected for the cover of the journal Science. This feature recognizes the significance of our research in the field of thermal radiation. While thermal radiation is typically considered incoherent, our work investigates a new...

Congratulations to Sathwik Bharadwaj and our former group members on the publication of their groundbreaking paper in the high-impact journal eLight! The paper, titled "Exploiting universal nonlocal dispersion in optically active materials for spectro-polarimetric computational imaging," introduces...

A paper authored by Sathwik Bharadwaj, titled " Unraveling Optical Polarization at Deep Microscopic Scales in Crystalline Materials," has been featured on the cover of ACS Photonics. This selection recognizes the scientific contribution of the work. The paper presents a theoretical framework for...

Our latest research on a new class of quantum detectors is published in New Journal of Physics. Here, we propose the "photon discerner", a device which uses adaptive photon thresholding for photon statistical estimation without recording exact photon numbers. We show that the adaptivity of our...

Congratulations to Yifan and Chinmay on their paper, “Broadband circularly polarized thermal radiation from magnetic Weyl semimetals” being published in Optical Materials Express. The paper demonstrates that a planar slab made of magnetic Weyl semimetal (a class of topological materials) can emit...

Purdue researchers have developed a “topological circulator” that may improve how information is routed and processed on a chip. Graphene has been the focus of intense research in both academic and industrial settings due to its unique electrical conduction properties. As the thinnest material known...

Ashwin Boddeti, a graduate student with Purdue University’s Elmore Family School of Electrical and Computer Engineering, has been awarded the Wolf Outstanding Student Paper Competition by Optica (formerly OSA). Established in 2008 to honor Emil Wolf for his many contributions to science and Optica...

Prof. Barry Bradlyn spoke about the discovery of topological materials as one of the most transformative recent breakthroughs in condensed matter physics, revealing new conceptual surprises in established topics such as the phases of matter and the behavior of electrons in insulators. Most work on...