Report summary

Purdue University West Lafayette Department of Physics and Astronomy in 2015-2026 reads as a 82-PI network with 66 internal PI collaborations. The research center of gravity is Physics and Astronomy as the leading field (43% of slots across 62 PIs; 62 labels), Nuclear and High Energy Physics as the leading subfield (15% of slots across 27 PIs; 27 labels), and High-Energy Particle Collisions Research as the leading topic (5% of slots across 13 PIs; 13 labels). Overall the pattern is balanced: there is enough structure to identify active groups, while the field mix still leaves room for multiple research identities. The most prominent PIs by weighted works are Alexandra Boltasseva (93.4 weighted works; Plasmonic and Surface Plasmon Research, Photonic and Optical Devices); Vladimir M. Shalaev (80.9 weighted works; Diamond and Carbon-based Materials Research, Advanced Fiber Laser Technologies). The strongest pairings are Alexandra Boltasseva and Vladimir M. Shalaev (284 shared works, weight 132.8). The strongest breakdown groups are group 1 with 10 PIs, 10 internal connections, weight 191.8, around Atomic and Molecular Physics, and Optics, Materials Chemistry, Electrical and Electronic Engineering, led by Alexandra Boltasseva, Vladimir M. Shalaev, Tongcang Li.