Results 1 to 10 of about 20,087,803 (245)

Interpretable Machine Learning of Two‐Photon Absorption [PDF]

open access: yesAdvanced Science, 2023
Molecules with strong two‐photon absorption (TPA) are important in many advanced applications such as upconverted laser and photodynamic therapy, but their design is hampered by the high cost of experimental screening and accurate quantum chemical (QC ...
Yuming Su   +9 more
doaj   +2 more sources

Witnessing entangled two-photon absorption via quantum interferometry

open access: yesAPL Photonics, 2023
Recent investigations have suggested that the use of non-classical states of light, such as entangled photon pairs, may open new and exciting avenues in experimental two-photon absorption spectroscopy.
Áulide Martínez-Tapia   +8 more
doaj   +3 more sources

On the application of Two-Photon Absorption for Laser Fault Injection attacks

open access: yesTransactions on Cryptographic Hardware and Embedded Systems, 2022
Laser Fault Injection (LFI) is considered to be the most powerful semiinvasive fault injection method for implementation attacks on security devices. In this work we discuss for the first time the application of the nonlinear Two-Photon Absorption (TPA)
Bodo Selmke   +7 more
doaj   +3 more sources

Computer aided chemical design: using quantum chemical calculations to predict properties of a series of halochromic guaiazulene derivatives [PDF]

open access: yesRoyal Society Open Science, 2016
With the scientific community becoming increasingly aware of the need for greener products and methodologies, the optimization of synthetic design is of greater importance. Building on experimental data collected from a synthesized guaiazulene derivative,
Adam W. Woodward   +3 more
doaj   +1 more source

Study of two-photon absorption and optical limiting

open access: yesBibechana, 2021
Simultaneous absorption of two photons of identical or different frequencies to excite a system that is atom or molecule from the ground state to excited state has great importance.
Bal Ram Ghimire
doaj   +3 more sources

Quantum metrology of two-photon absorption

open access: yesPhysical Review Research, 2021
Two-photon absorption (TPA) is of fundamental importance in super-resolution imaging and spectroscopy. Its nonlinear character allows for the prospect of using quantum resources, such as entanglement, to improve measurement precision or to gain new ...
Carlos Sánchez Muñoz   +2 more
doaj   +1 more source

Photoinduced charge transfer in two-photon absorption

open access: yesResults in Optics, 2021
The visual method is used to theoretically discuss the influence of different external electric fields on the photo-induced charge transfer of the donor-bridge-acceptor (D-B-A) system in the two-photon absorption (TPA).
Siyuan Zhu, Mengtao Sun
doaj   +1 more source

Synthesis and Ultrafast Broadband Optical Limiting Properties of a Two-Branched Twistacene

open access: yesMolecules, 2022
A novel two-branched twistacene (PyDN) has been designed and synthesized for application on ultrafast optical limiting. This twistacene exhibits excellent two photon absorption and two photon absorption-induced excited singlet state absorption, which was
Yanbing Han   +5 more
doaj   +1 more source

Tunable nonlinear optical responses of few-layer graphene through lithium intercalation

open access: yesNanophotonics, 2021
Intercalation has been demonstrated to be a powerful tool for tuning the physical and chemical properties of two-dimensional (2D) materials, providing the highest possible doping level and an ideal system to study various electronic states. In this work,
Zhang Chenxi   +5 more
doaj   +1 more source

Experimental feasibility of molecular two-photon absorption with isolated time-frequency-entangled photon pairs

open access: yesPhysical Review Research, 2021
Entangled photon pairs have promised to deliver a substantial quantum advantage for two-photon absorption spectroscopy. However, recent work has challenged the previously reported magnitude of quantum enhancement in two-photon absorption.
Tiemo Landes   +5 more
doaj   +1 more source

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