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Our article from Phys.org, discussing our recent work on "Observation of nonvanishing optical helicity in thermal radiation from symmetry-broken metasurfaces" has been published in Science Advances (2023). Spinning thermal radiation is a unique phenomenon observed in condensed astronomical objects...

To become more pervasive in daily life, quantum technology needs to better detect single particles of light, called photons, carrying quantum information. The problem is that each photon is a very weak signal, making it difficult for measurement devices to efficiently detect them. Purdue University engineers have proposed a new quantum resource that could help design the next generation of single-photon detectors.

Quantum causality is an emerging field of study which has the potential to greatly advance our understanding of quantum systems. In this paper, we put forth a theoretical framework for merging quantum information science and causal inference by exploiting entropic principles. For this purpose, we...

Our recent work on adaptive quantum accelerated imaging for space domain awareness has been published in New Journal of Physics. In this work, we propose to use the recently developed quantum-accelerated imaging (QAI) for the SDA challenge. Read full article at: https://iopscience.iop.org/article/10...

Our recent paper titled "Why are Thermal Images Blurry?" has been selected to be featured as a Spotlight on Optics by Optica Publishing Group. Checkout the spotlight at: https://opg.optica.org/spotlight/summary.cfm?id=545756 Description of the spotlight from Optica Publishing Group: "Spotlight on...

The gas turbines powering aircraft engines rely on ceramic coatings that ensure structural stability at high temperatures. But these coatings don’t control heat radiation, limiting the performance of the engine. Researchers at Purdue University have engineered ceramic “nanotubes” that behave as thermal antennas, offering control over the spectrum and direction of high-temperature heat radiation.

Congratulations to Fanglin Bao for his new paper in Optics Letters which talks about - Imaging point sources with low angular separation near or below the Rayleigh criterion are important in astronomy, e.g., in the search for habitable exoplanets near stars. However, the measurement time required to...

Over the past three decades, graphene has become the prototypical platform for discovering topological phases of matter. Both the Chern C ε Z and quantum spin Hall ν ε Z 2 insulators were first predicted in graphene, which led to a veritable explosion of research in topological materials. We...

Classical structured light with controlled polarization and orbital angular momentum (OAM) of electromagnetic waves has varied applications in optical trapping, bio-sensing, optical communications, and quantum simulations. However, quantum noise and photon statistics of three-dimensional photonic...

Our most recent work on "picophotonics" has been featured in Purdue News which says "Light-matter interaction in materials is central to several photonic devices from lasers to detectors. Over the past decade, nanophotonics, the study of how light flows on the nanometer scale in engineered...