Results 121 to 130 of about 931,327 (325)

Two-Photon Spectroscopy Between States of Opposite Parities

, 1995
Magnetic- and electric-dipole two-photon absorption (MED-TPA), recently introduced as a new spectroscopic technique for studying transitions between states of opposite parities, is investigated from a theoretical point of view.
A.G. Makhanek, D. Fröhlich, G.E. Stedman, J. Sztucki, J. Sztucki, J.C. G ^acon, J.C. G ^acon, J.D. Axe, Jr., J.J. Hopfield, M. Daoud, M. Daoud, M. Daoud, M. Inoue, M. Kibler, M. Kibler, M. Kibler, M.R. Kibler, R.C. Leavitt, S.K. Gayen, T.R. Bader   +19 more
core   +2 more sources

Molecular Entangled Two-Photon Absorption

, 2021
life sciences and material science. In this work we focus mostly on how quantum technologies could be applied to one of them – nonlinear microscopy, and whether it possible to have the best of both worlds – high penetration depth, spatial and temporal resolution of well-developed nonlinear microscopy techniques implemented in a low-light regime of ...
openaire   +2 more sources

Operando Temperature Sensing at the Actual Electrocatalytic Interface by Nanodiamond Quantum Sensors

Advanced Functional Materials, EarlyView.
By integrating a wide‐field microscope with a custom‐designed electrolyzer, nanoscale temperature changes can be recorded in situ during the electrolysis process without interfering with ongoing electrochemical reactions. This method establishes a correlation between the interface temperature and specific electrochemical reactions, making the measured ...
Zan Li, Hui Wang, Mingzhong Ai, Yao Gao, Xinyi Feng, Junchen Ye, Ying Wang, Quan Li   +7 more
wiley   +1 more source

Nonlinear Absorption Response Correlated to Embedded Ag Nanoparticles in BGO Single Crystal: From Two-Photon to Three-Photon Absorption

Scientific Reports, 2018
We report on the embedded silver (Ag) nanoparticles fabricated by Ag+ ion implantation into the Bi4Ge3O12 (BGO) crystal. Localized surface plasmon resonance (LSPR) phenomenon has been observed by linear optical absorption spectrum, which is accordance ...
Rang Li, Ningning Dong, Feng Ren, Hiro Amekura, Jun Wang, Feng Chen   +5 more
doaj   +1 more source

Coexisting Rashba/Dresselhaus Spin Splitting in Solution‐Processed Bournonite Films Using Circular Photogalvanic Effect

Advanced Functional Materials, EarlyView.
Circular photogalvanic effect measurements and first‐principles calculations reveal spin‐splitting states in solution‐processed bournonite films (CuPbSbS3) due to structural and bulk inversion asymmetry. The results provide experimental confirmation of coexisting Rashba and Dresselhaus spin‐splitting states in this non‐centrosymmetric chalcogenide ...
Aeron McConnell, Sasa Wang, Andrew Grieder, Yuan Ping, David B. Mitzi, Dali Sun   +5 more
wiley   +1 more source

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

Advanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park, Jewoong Lee, In‐Suk Choi, Changsoon Kim   +3 more
wiley   +1 more source

Large nonlinear optical absorption and refraction of β-In2Se3 thin film from above to below bandgap excitation

Applied Physics Express
Nonlinear optical materials, especially two-dimensional materials, are anticipated to reveal broadband optical nonlinearity for future miniaturized photonic applications.
Dan Wu, Wen Dong, Yanqing Ge, Xueqin Cao, Mingjian Shi, Erkang Li, Nan Ma, Yixuan Zhou, Yuanyuan Huang, Chunhui Lu, Xinlong Xu   +10 more
doaj   +1 more source

Spatially Tailorable Liquid Crystalline Elastomer Alignment During Digital Light Process 3D Printing

Advanced Functional Materials, EarlyView.
Here, we report the fabrication of 3D printable liquid crystalline elastomer (LCE) structures with spatially tailorable alignment domains within the same layer. This work addresses the long‐standing challenge of preparing complex 3D LCE architectures with patterned functional domains to achieve nonlinear deformations. Fabrication of multi‐domains in 3D
Adam Bischoff, Saman Jamshididana, Zach Miller, Kassandra Hernandez, Nicolas Gonsalves, Andre Olarra, Elliot Yoo, Jeremy A. Herman, Devin J. Roach   +8 more
wiley   +1 more source

Birefringence and Anisotropy of the Losses Due to Two-Photon Absorption of Femtosecond Pulses in Crystals

Photonics
It is shown that the two-photon absorption (TPA)-induced losses in a non-centrosymmetric crystal reduce considerably when the angle θ between the polarization vector of incident radiation and the optical c-axis is 45°.
Valeri Kovalev, George Krasin
doaj   +1 more source

Non-linear spectroscopy of rubidium: An undergraduate experiment

, 2009
In this paper, we describe two complementary non-linear spectroscopy methods which both allow to achieve Doppler-free spectra of atomic gases. First, saturated absorption spectroscopy is used to investigate the structure of the $5{\rm S}_{1/2}\to 5{\rm P}
A Allafort, B Hingant, Bordé C, Cagnac B, Cahuzac P, Grynberg G, Grynberg G, Grynberg G, Grynberg G, J F Roch, Letokhov V S, M Pigeard, Schalow A L, V Jacques, Vasilenko L S   +14 more
core   +1 more source