Title:    How materials and methods evolve hand in hand: Electronic spectroscopy for molecular mesoscopics

Lecturer:  Prof. John Lupton

Department of Physics, University of Regensburg, Germany

Venue:    Room 2, Building 3, Energy and Materials Building, Xiang 'an Campus

Abstract：

1. Photon correlation spectroscopy-----------------10 am. 2026.2.9

History of g(2) vs g(1)

New applications of g(2)

Bunching vs antibunching

2. Molecular mesoscopics – molecular aggregates Growing single aggregates from single molecules --------------------10 am. 2026.2.10

J/H aggregates

Low-temperature effects

Superradiance, Dicke (cf. spin Dicke!)

3. Intramolecularization of intermolecular interactions -------------10 am. 2026.2.11

Developing model systems to improve spectroscopy – improve spectroscopy to study new model systems!

Macrocycles of all shapes

Chromophore bending vs interactions

Excitonic quantum interference in macrocycles

Bio of the Lecturer：

Professor John Lupton holds a chair in experimental physics at the University of Regensburg, Germany. He is also Research Professor of Physics at the University of Utah, US, where he maintains a small research activity. John studied physics at the University of Durham, UK, and held postdoctoral appointments at the University of St Andrews, at the MPI in Mainz and at LMU Munich. Distinctions include a Packard Fellowship, a Research Corporation Scialog award, and an ERC Starting Grant. His research interests span single-molecule spectroscopy of pi-conjugated macromolecules, spin physics of molecular materials, and the optics of semiconductor and metallic nanostructures.