Results 101 to 110 of about 931,327 (325)

Optical limiting behavior of bismuth oxide-based glass in the visible range [PDF]

, 2006
The authors report experimental results on the optical limiting behavior of a bismuth oxide-based glass by exciting the samples with nanosecond laser pulses at 532 and 598 nm.
A. S. L. Gomes, Cid B. de Araújo, E. L. Falcão-Filho, F. P. Mezzapesa, Hernández F., I. C. S. Carvalho, K. Sakaguchi, L. de S. Menezes, P. G. Kazansky, T. R. Oliveira   +9 more
core   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source

Synthesis, as well as linear and nonlinear fluorescence properties of 5, 5’-bis(4-N-carbazolylstyryl)-2, 2’-bithiophene [PDF]

Journal of the Serbian Chemical Society, 2004
Anew bithiophene-based organic luminescence material, named 5,5’-bis(4-N-carbazoylstyryl)- 2,2’-bithiophene (BCSBT), was synthesized. Its single-photon excited fluorescence band is located in the range of 520–530 nm, with a quantum yield of around 10 ...
Xia Guang-Ming, Lu Ping, Xu Gui-Bao
doaj   +1 more source

Optically tailored access to metastable electronic states [PDF]

, 2013
On irradiating a molecular system with a laser beam of ultraviolet or visible frequency, photon absorption occurs when an electronic state is at a suitable energy level relative to an initial state.
Andraud, Andrews, Andrews, Andrews, Bancewicz, Bradshaw, Bradshaw, Bradshaw, Brasselet, Coope, Coope, Craig, David L. Andrews, David S. Bradshaw, Jerphagnon, Jerphagnon, Leeder, Mandel, Piron, Salam, Smith, Stone, Stone   +22 more
core   +1 more source

Cooperative two-photon absorption. II [PDF]

The Journal of Chemical Physics, 1984
In this paper we extend our earlier work on cooperative two-photon absorption to the case of one- and three-photon allowed transitions using the principles of quantum electrodynamics. After deriving a general rate equation we consider two specific molecular systems: (i) van der Waals molecules in which the two centers have a fixed mutual orientation ...
Andrews, David L., Harlow, Michael J.
openaire   +3 more sources

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

Fluorescent phosphorus dendrimers excited by two photons: synthesis, two-photon absorption properties and biological uses

Beilstein Journal of Organic Chemistry, 2019
Different types of two-photon absorbing (TPA) fluorophores have been synthesized and specifically functionalized to be incorporated in the structure of phosphorus dendrimers (highly branched macromolecules).
Anne-Marie Caminade, Artem Zibarov, Eduardo Cueto Diaz, Aurélien Hameau, Maxime Klausen, Kathleen Moineau-Chane Ching, Jean-Pierre Majoral, Jean-Baptiste Verlhac, Olivier Mongin, Mireille Blanchard-Desce   +9 more
doaj   +1 more source

Two-photon absorption in potassium niobate

, 2001
We report measurements of thermal self-locking of a Fabry-Perot cavity containing a potassium niobate (KNbO3) crystal. We develop a method to determine linear and nonlinear optical absorption coefficients in intracavity crystals by detailed analysis of ...
A. D. Ludlow, An, Arie, Busse, Douillet, Drever, Dube, Ghosh, Goldberg, H. M. Nelson, Mabuchi, Polzik, S. D. Bergeson, Shiv   +13 more
core   +1 more source

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

Advanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source

Experimental verification of a self-consistent theory of the first-, second-, and third-order (non)linear optical response

, 2009
We show that a combination of linear absorption spectroscopy, hyper-Rayleigh scattering, and a theoretical analysis using sum rules to reduce the size of the parameter space leads to a prediction of the two-photon absorption cross-section of the dye ...
F. A. Cotton, Javier Pérez-Moreno, Juefei Zhou, Koen Clays, M. G. Kuzyk, Mark G. Kuzyk, Sheng-Ting Hung, Shiva K. Ramini, W. Heisenberg, W. Kuhn   +9 more
core   +1 more source