6 papers
Persistent singlet electronic character in the multiexcitonic triplet-pair state of strongly coupled pentacene singlet fission dimers
Atandrita Bhattacharyya, Namana Venkatareddy, Sanjoy Patra +5
Singlet fission converts an optically excited singlet state into a spin-entangled triplet pair state (TT) that can, in principle, yield two free triplets for photovoltaics…
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…
Prominent Signatures of Energy Transfer in Action-Detected Spectra of a Cyanobacterial Photosynthetic Protein
Sayan Ghosh, Amitav Sahu, Stephanie Gonzalez-Migoni +2
Action-detected two-dimensional electronic spectroscopy (A-2DES) could potentially be a versatile chemical tool with applicability across a range of photophysical observables such…
Single photon emission from lithographically-positioned engineered nanodiamonds for cryogenic applications
Vivekanand Tiwari, Zhaojin Liu, Hao-Cheng Weng +6
Nitrogen-vacancy centres in nanodiamonds (NDs) provide a promising resource for quantum photonic systems. However, developing a technology beyond proof-of-principle physics require…
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…