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Our recent work on 'Heat-assisted detection and ranging' has been published in Nature. We discuss how Machine perception uses advanced sensors to collect information about the surrounding scene for situational awareness . State-of-the-art machine perception using active sonar, radar and LiDAR to...

Our group members, Shoaib Mahmud and Daien He, have been awarded the Bilsland Dissertation Fellowship by Purdue Graduate School. The fellowship is awarded by departments and colleges to PhD students who will enter their final year of their program in 2024. Recipients are expected to devote full-time...

Congratulations to Dr. Xueji Wang and Ziyi Yang for the feature of their recent paper on thermal imaging among the top downloads in Optica for the month of January. In this paper titled "Spinning metasurface stack for spectro-polarimetric thermal imaging", we introduce an approach for spectro...

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...