5 papers
State Localization and Selective Charge Filtering Near a Null Point
Sanjoy Patra, Jibin Sivanarayan, Vivek N. Bhat +5
Null points in synthetically tunable molecular aggregates are predicted to generate flat energy bands analogous to those known in strongly correlated condensed-matter physics. For…
Disordered Photosynthetic Aggregates Can Host Functional Vibronic Couplings At Room Temperature
Asha S. Thomas, Camelia Roy, Vivek N. Bhat +2
Photosynthesis relies on a network of chlorophyll-like molecules which together lead to efficient long-range energy funneling. Evidence at cryogenic temperatures suggests that mech…
Rapid Scan White Light Two-dimensional Electronic Spectroscopy with 100 kHz Shot-to-Shot Detection
Asha S. Thomas, Vivek N. Bhat, Vivek Tiwari
We demonstrate an approach to two-dimensional electronic spectroscopy (2DES) that combines the benefits of shot-to-shot detection at high-repetition rates with the simplicity of a…
Rapid Scan White Light Pump-Probe Spectroscopy with 100 kHz Shot-to-Shot Detection
Vivek N. Bhat, Asha S. Thomas, Vivek Tiwari
We demonstrate a femtosecond pump-probe spectrometer which utilizes a white light supercontinuum as input, and relies on mutual synchronization of acousto-optical chopper, pump-pro…
High-sensitivity Fluorescence-Detected Multidimensional Electronic Spectroscopy Through Continuous Pump-probe Delay Scan
Amitav Sahu, Vivek N. Bhat, Sanjoy Patra +1
Background-free fluorescence detection in multidimensional electronic spectroscopy promises high sensitivity compared to conventional approaches. Here we explore the sensitivity li…