معرفی
Philip J. M. Johnson is a researcher at the Paul Scherrer Institute (PSI) in the Laboratory for Nonlinear Optics and the Experimental Laser Group since 2018. His work focuses on ultrafast chemical reactions driven by light, particularly in biological systems like rhodopsins and photosynthetic processes. He is affiliated with the Alvra endstation at SwissFEL, where he combines laser and x-ray techniques to study molecular dynamics.
- Ph.D. from University of Toronto (2013)
- Postdoctoral research at University of Zurich
Research Interests: His research bridges vibrational and electronic dynamics in light-initiated reactions, aiming to observe coherent molecular motions during primary photochemical events. This includes studying biological systems such as photoreceptor proteins and energy conversion mechanisms in photosynthesis.
Publications: Johnson's recent work explores time-resolved structural changes in light-driven sodium pumps, vibronic dynamics of bacteriorhodopsin, and nonlinear optical effects modulated by intense x-ray pulses. These span biophysics, chemical physics, and photonics.
Instrumentation & Collaborations: He contributes to laser/x-ray arrival time instrumentation and ultrafast pulsed laser development at PSI. His work integrates spectroscopy, diffraction, and quantum chemistry simulations.
