Results 111 to 120 of about 30,505 (307)

Birefringence dynamique des colloïdes. Etude expérimentale de quelques systèmes polydispersés

, 1938
Ch. Sadron, H. Mosimann
openalex   +2 more sources

Excitonic Anisotropy in Single‐Crystalline 2D Silver Phenylchalcogenides

Advanced Optical Materials, EarlyView.
Using a combination of ab initio theory and optical micro‐spectroscopy, in‐plane anisotropy of multiple delocalized excitons in 2D silver phenylchalcogenides (AgEPh; E = S, Se, Te) is predicted and characterized. Cryogenic reflectance micro‐spectroscopy further reveals the fine structure of excitonic bands in AgSePh.
Woo Seok Lee, Yeongsu Cho, Katarzyna Posmyk, Paulina Peksa, Mateusz Dyksik, Nicholas Samulewicz, Paulina Plochocka, Michał Baranowski, Heather J. Kulik, William A. Tisdale   +9 more
wiley   +1 more source

Birefringence of Cytoplasm and Cell Membranes

, 1951
M. M. Swann, J. M. Mitchison
openalex   +1 more source

Linear Magnetic Birefringence in Cubic Magnetic Crystals [PDF]

, 1969
J. F. Dillon, J. P. Remeika, C. R. Staton   +2 more
openalex   +1 more source

Hierarchical Twist: Chirality Across Scales in Cellulose Cholesterics

Advanced Optical Materials, EarlyView.
Hierarchical left‐ and right‐handed chiral nematic structures are observed in a solvent‐free thermotropic cellulose derivative. Free‐standing films show hierarchical twisted structures whose pitches respond differently to uniaxial strain: left‐handed pitches increase, ones decrease.
N. Monge, L.F.V. Pinto, E. Ferreira, P.L. Almeida, J.L. Figueirinhas, A.L. Carvalho, P.J. Sebastião, M.H. Godinho   +7 more
wiley   +1 more source

Temperature dependence of birefringence in irradiated polyethylene [PDF]

, 1964
E. Keneally, J. A. Gard, G. Adler
openalex   +1 more source

Recent Advances in χ(2)‐Based Nonlinear Frequency Conversion of Fiber Lasers

Advanced Photonics Research, EarlyView.
Visible and mid‐infrared fiber lasers, enabled by nonlinear frequency conversion of fiber lasers, offer several advantages such as high efficiency, excellent wavelength tunability, high power, and superior beam quality that are highly desirable for practical applications. This study provides a comprehensive review of recent research progress in the χ(2)
Bing Han, Yiming Tao, Wei Deng, Lu Chen, Bo Hu, Qian Cheng, Yihan Qiu, Mengqiu Fan, Houkun Liang, Ting Feng, Han Wu   +10 more
wiley   +1 more source

Strain‐Induced Optical and Molecular Transformations in Poly(Ethylene Terephthalate) Films for Organic Electronic Applications

Advanced Photonics Research, EarlyView.
This study explores how mechanical strain affects the optical and molecular properties of poly(ethylene terephthalate) (PET) films, crucial for flexible electronics. Using UV–Vis and Raman spectroscopy, it reveals strain‐induced changes in transparency and vibrational modes. Findings provide insights into optimizing PET‐based devices like organic solar
Mahya Ghorab, Ayush K. Ranga, Patrice Donfack, Arnulf Materny, Veit Wagner, Mojtaba Joodaki   +5 more
wiley   +1 more source

Cyclic birefringence changes in pseudopods of Chaos carolinensis revealing the localization of the motive force in pseudopod extension. [PDF]

, 1965
Robert D. Allen, David W. Francis, H. Nakajima   +2 more
openalex   +1 more source

Techniques and Advances in Ultrafast Photography

Advanced Photonics Research, EarlyView.
This review maps the fast‐growing field of ultrafast photography from early mechanical cameras to modern optical‐computational methods. It organizes techniques into four families (multishot passive/active; single‐shot passive/active), explains how they reach trillion‐frame‐per‐second speeds, compares capabilities and tradeoffs, and highlights ...
Chen Huang, Xin Zhang, Renjie Han, Jiaoyu Fan, Hui Jiang, Yiwen Zhang, Jinghua Yu, Jiamin Wang, Yi Chen, Junjie Sun, Fei Chen   +10 more
wiley   +1 more source