Results 11 to 20 of about 20,087,803 (245)

Two-photon absorption under few-photon irradiation for optical nanoprinting [PDF]

Nature Communications
Two-photon absorption (TPA) has been widely applied for three-dimensional imaging and nanoprinting; however, the efficiency of TPA imaging and nanoprinting using laser scanning techniques is limited by its trade-off to reach high resolution.
Zi-Xin Liang, Yuan-Yuan Zhao, Jing-Tao Chen, Xian-Zi Dong, Feng Jin, Mei-Ling Zheng, Xuan-Ming Duan   +6 more
doaj   +2 more sources

Enhancement of Two-Photon Absorption in Boron-Dipyrromethene (BODIPY) Derivatives [PDF]

Molecules, 2022
The linear and nonlinear optical properties of two BODIPY derivatives, 1,7-Diphenyl-3,5-bis(9,9-dimethyl-9H-fluoren-2-yl)-boron-diuoride-azadipyrromethene (ZL-61) and 1,7-Diphenyl-3,5-bis(4-(1,2,2-triphenylvinyl)phenyl)-boron-diuoride-azadipyrromethene ...
Guanzheng Song, Zhongguo Li, Yanbing Han, Jidong Jia, Wenfa Zhou, Xueru Zhang, Yuxiao Wang, Yinglin Song   +7 more
doaj   +2 more sources

Near‐Infrared Cocrystal Nanofluorophore with Enhanced Two‐Photon Absorption Cross Sections [PDF]

Advanced Science
The growing demand for organic nanoprobes that combine broadband two‐photon absorption (TPA) with near‐infrared (NIR) optical excitation continues to drive advancements in biological imaging and advanced photonics.
Liangmeng Hao, Ying Ni, Jiawei Huang, Yucheng Wang, Fan Liu, Xu Wang, Lei Kang, Zheshuai Lin, Weigang Zhu   +8 more
doaj   +2 more sources

Strain-enhanced two-photon absorption in twisted bilayer graphene [PDF]

Scientific Reports
We theoretically investigate the strain-tuned moiré flat bands and two-photon absorption (TPA) in magic-angle (MA) twisted bilayer graphene (TBG). Using a low-energy continuum model for strained TBG and second-order perturbation theory, we demonstrate ...
Lianmeng Yu, Zhaoming Fu, Peizhi Yang, Xiaobo Feng   +3 more
doaj   +2 more sources

Effect of two-photon absorption on trapping of plasmonic nanoparticles [PDF]

Scientific Reports
In this paper, we introduce a theoretical framework for optical trapping that integrates nonlinear polarization within the dipole approximation. This theory represents the most comprehensive analytic model to date capable of resolving the discrepancies ...
S. Mirzaei-Ghormish, K. Qaderi, D. Smalley   +2 more
doaj   +2 more sources

Nonlinear optical thresholding in a 4-Channel OCDMA system via two-photon absorption [PDF]

, 2009
We demonstrate the use of a Two-Photon Absorption based detector in an OCDMA system.
K. J. Dexter, Petropoulos, P., Richardson, D.J., Dexter, Karl J., Reid, Douglas A., Reid, D.A., Barry, Liam P., Dexter, K.J., D. J. Richardson, Barry, L.P., D. A. Reid, L. P. Barry, P. Petropoulos   +12 more
core   +3 more sources

Degenerate and Non-Degenerate Two-Photon Absorption of Coumarin Dyes [PDF]

, 2023
Two-photon absorption (2PA) spectroscopy is a robust bioimaging tool that depends on the determined cross sections (σ2PA). The absorption of both photons occurs simultaneously with equivalent (degenerate) or different (non-degenerate) photon energies, D ...
Ismael A., Elayan, Alex, Brown, Ismael A. Elayan, Alex Brown   +3 more
core   +2 more sources

All-optical sampling utilising two-photon absorption in semiconductor microcavity [PDF]

, 2005
A highly-efficient optical sampling system based on Two-Photon Absorption in a semiconductor micro-cavity is presented.
Krug, T., Maguire, Paul, J., Donegan, John Francis, Folliot, Hervé, Donegan, J.F., Barry, Liam,, Bradley, A.L., Folliot, H., Lynch, M., Barry, Liam P., Lynch, Michael, Bradley, Ann Louise, Maguire, Paul,, Maguire, Paul J., Barry, Liam, P.   +14 more
core   +2 more sources

Experimental and computational data on two-photon absorption and spectral deconvolution of the upper excited states of dye IR780

Data in Brief, 2021
Evaluating candidates for novel materials with high nonlinear absorption properties for applications as biomarkers is a very important field of research.
Luis Guillermo Mendoza-Luna, Cesar A. Guarin, Emmanuel Haro-Poniatowski, José Luis Hernández-Pozos   +3 more
doaj   +1 more source

Chromatic dispersion monitoring of 80-Gb/s OTDM data signal via two-photon absorption in a semiconductor microcavity [PDF]

, 2007
In this letter, a novel method of chromatic dispersion monitoring via two-photon absorption (TPA) is investigated. A specially designed semiconductor microcavity is employed as a TPA detector for monitoring data signals operating at rates up to 80Gb/s ...
Guo, Wei Hua, O\u27Dowd, John, O'Dowd, John, Donegan, John Francis, Folliot, Hervé, Donegan, J.F., O'Dowd, J., Bradley, A.L., Guo, W.H., Maguire, P. J., Folliot, H., Lynch, M., Barry, Liam P., Bondarczuk, Krzysztof, Lynch, Michael, Barry, L.P., Bondarczuk, K., Bradley, Ann Louise, Maguire, Paul J.   +18 more
core   +2 more sources