Regular biography
Steven Johnson is a Professor of Applied Mathematics and Professor of Physics at the Massachusetts Institute of Technology, affiliated with the MATH department. His research focuses on the influence of complex geometries on wave phenomena and electromagnetism, including analytical theory, numerics, and device design. He is also known for his work in high-performance computing, particularly the development of the FFTW fast Fourier transform library. Johnson joined the MIT faculty in applied mathematics in 2004 and was awarded tenure in 2011. He is co-chair of math undergraduate advising and co-chair of math UROPs. His profile page provides additional details about his academic and professional activities.
Scholar-generated biography
Steven Johnson is a Professor of Applied Mathematics and Physics at the Massachusetts Institute of Technology. His research focuses on computational electromagnetism, photonic crystals, and numerical algorithms for solving Maxwell's equations. He has developed the MEEP software package for electromagnetic simulations using the finite-difference time-domain (FDTD) method and contributed to the FFTW library for fast Fourier transforms. His work explores the design and implementation of photonic crystals, which are used to control light propagation, and includes studies on slow-light enhancement, negative refraction, and subwavelength imaging. Johnson's research also addresses the Casimir effect in microstructured geometries and the application of physics-informed neural networks for inverse design problems.