Zobrazeno 1 - 10
of 174
pro vyhledávání: '"Ivan Biaggio"'
Publikováno v:
AIP Advances, Vol 9, Iss 9, Pp 095027-095027-10 (2019)
By using wavelength-tunable, low fluence picosecond pulses at a 1 kHz repetition rate in a transient grating pump and probe configuration, we show that photoexcitation to higher vibrational levels leads to slower singlet exciton fission rates in rubr
Externí odkaz:
https://doaj.org/article/77643cfd14ad496181b9120bc621e969
Publikováno v:
CHIMIA, Vol 64, Iss 6 (2010)
Donor-substituted cyanoethynylethenes (CEEs) are planar push–pull chromophores featuring intense intramolecular charge-transfer (CT) interactions and high third-order optical nonlinearities. Their thermal stability allows for the formation of cryst
Externí odkaz:
https://doaj.org/article/801c503f84354d3b892f12b1889c9e40
Autor:
Lauren Dallachiesa, Ivan Biaggio
Publikováno v:
Optics letters. 47(8)
We introduce electrically poled small molecule assemblies that can serve as the active electro-optic material in nano-scale guided-wave circuits such as those of the silicon photonics platform. These monolithic organic materials can be vacuum-deposit
Autor:
Ivan Biaggio, Eric A. Wolf
Publikováno v:
Frontiers in Optics + Laser Science 2022 (FIO, LS).
The geminate annihilation of two triplet excitons created by singlet exciton fission is affected by the dimensionality of transport as determined by typically anisotropic triplet exciton mobilities in organic molecular crystals. We analyze this proce
Autor:
Ivan Biaggio
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 28(6)
Small organic molecules with a π-conjugated system that consists of only a few double or triple bonds can have significantly smaller optical excitation energies when equipped with donor and acceptor groups, which raises the quantum limits to the mol
Autor:
Lauren Dallachiesa, Ivan Biaggio
Publikováno v:
OSA Nonlinear Optics 2021.
Vapor-deposited, monolithic small molecule assemblies deliver a strong, permanent electro- optic response after being electrically poled above the glass transition temperature. They are ideally suited for hybrid electro-optic modulators in integrated
Publikováno v:
Frontiers in Optics / Laser Science.
Under an applied magnetic field of the order of 0.3 T, singlet exciton fission into two triplet excitons and the subsequent geminate fusion of the latter leads to long-lasting spin entanglement and quantum beats in the emitted fluorescence
Autor:
Jing Su, Ivan Biaggio
Publikováno v:
Frontiers in Optics / Laser Science.
Coupling Length Phase Matching (CLPM) enables the generation of mid-infrared radiation using four-wave mixing and the third-order nonlinear optical properties of glass in otherwise unstructured, appropriately designed dual-core optical fibers.
Autor:
Ivan Biaggio, H. Daniel Ou-Yang
Publikováno v:
Frontiers in Optics / Laser Science.
Focused electro-magnetic radiation concentrates nanoparticles relying only on the magnitude of the optical electric field and ignoring its frequency. This enables broadband optical limiting in the infrared when coupled with a colloidal phase transiti
Autor:
Ivan Biaggio, Drew M. Finton
Publikováno v:
Frontiers in Optics / Laser Science.
We observe singlet exciton fission and the formation of triplet exciton transient gratings that allow us to study the singlet exciton fission time and the rise of the triplet population under different excitation and detection conditions