Action-detection has expanded the scope and applicability of 2D electronic spectroscopy,
while posing new challenges for the unambiguous interpretation of spectral features. In this …

This study elucidates the information content that is extracted from action-2D electronic
spectroscopy (A-2DES) when the output intensity is not proportional to the number of …

We demonstrate fluorescence-detected two-dimensional electronic spectroscopy (F-2DES)
with a broadband, continuum probe pulse pair in the pump-probe geometry. The approach …

In recent years, action-detected ultrafast spectroscopies have gained popularity offering
distinct advantages over their coherently detected counterparts, such as spatially resolved …

We present a nonlinear spectroelectrochemical technique to investigate photosynthetic
protein complexes. The PEC2DES setup combines photoelectrochemical detection (PEC) …

Action spectroscopies use a readout created by the action of light on the molecules or
material rather than optical absorption. Ultrafast 2D photocurrent and 2D fluorescence …

Although valuable insights are derived from conventional spectroscopic approaches, the
understanding of a photovoltaic device's operation mechanisms can be limited in ex situ …

We explore the application of excitation correlation spectroscopy to detect nonlinear
photophysical dynamics in two distinct semiconductor classes through time-integrated …

Two-dimensional spectroscopy is examined for open quantum systems featuring multiple
simultaneously measurable fluxes. Specifically, we explore a junction where optical …

The use of semiconductor nanocrystals in scalable quantum technologies requires
characterization of the exciton coherence dynamics in an ensemble of electronically isolated …