Results 61 to 70 of about 14,728 (161)

External Modulation Optical Coherent Domain Reflectometry with Long Measurement Range

Sensors, 2021
Optical coherent domain reflectometry (OCDR) can achieve a high spatial resolution that is independent of the bandwidth of the receiver, but the measurement range is usually very limited.
Yinghong Xue, Yueping Niu, Shangqing Gong   +2 more
doaj   +1 more source

Observation of coherent backscattering of light by cold atoms

, 2000
Coherent backscattering (CBS) of light waves by a random medium is a signature of interference effects in multiple scattering. This effect has been studied in many systems ranging from white paint to biological tissues.
Akkermans E, C A Müller, Ch Miniatura, D S Wiersma, G Labeyrie, Golubentsev A A, Greffet J-J, Ishimaru A, Jonckheere T, Jonckheere T, Kuga Y, Lenke R, Mishchenko M I, Murty M, Okamoto T, R Kaiser, Sesko D W, van Tiggelen B A, van Tiggelen B A, Yoo K M   +19 more
core   +1 more source

Structure‐Function Tailoring of Plasmonic Nanomaterials for Thin‐Film Photovoltaics

Carbon Energy, EarlyView.
This review discusses the mechanisms and recent advancements of plasmonics in achieving effective light management to enhance the performance of thin‐film solar cells. It highlights applications in high‐performance perovskite solar cells and future‐oriented tandem solar cells.
Sen Jiang, Wenhan Yang, Annan Zhu, Yuexin Lin, Zhaohui Xie, Ran Chen, Wenjing Zhu, Jin Liu, Yingjie Zhu, Wenye Jiang, Zhiyuan Gu, Kaiyang Wang, Shengchun Yang, Nan Zhang, Chao Liang   +14 more
wiley   +1 more source

Synthesis, Crystal Structure, and Optoelectronic Properties of [(n‐/tert‐C4H9)S(CH3)2]PbI3

European Journal of Inorganic Chemistry, EarlyView.
Reaction of two isomers of butyldimethylsulfonium cation with PbI2 using solid‐state and solution methods yielded the corresponding organic/inorganic hybrid compounds with high humidity tolerance and 1D crystal structures of [n‐C4H9S(CH3)2]PbI3 and [tert‐C4H9S(CH3)2]PbI3.
Ioannis Koutsoumpogeras, Nikolaos Tsoureas, Nagia S. Tagiara, Ioannis Koutselas, Andreas Kaltzoglou   +4 more
wiley   +1 more source

Vertical structure of Arctic haze observed by lidar [PDF]

, 1986
In the study of the Arctic Haze phenomenon, understanding the vertical structure of the haze aerosol is crucial in defining mechanisms of haze transport. Questions have also arisen concerning the representativeness of surface observations of Arctic Haze.
Hoff, R. M.
core   +1 more source

Beyond bathymetry: Mapping acoustic backscattering from the deep seafloor with Sea Beam [PDF]

, 1986
In its standard mode of operation, the multibeam echosounder Sea Beam produces high resolution bathymetric contour charts of the seafloor surveyed. However, additional information about the nature of the seafloor can be extracted from the structure of ...
de Moustier, Christian
core   +2 more sources

Analytical Characterization of Quantum Dot Enhancement Films in Commercial Displays

Helvetica Chimica Acta, EarlyView.
Colloidal quantum dots (QDs) are increasingly used in displays, yet many compositions are regulated due to hazardous metal content. Their accurate identification and assessment are therefore essential. Here, a multimodal analytical workflow centered on LA‐ICP‐MS enables spatially resolved identification and classification of QDs in commercial quantum ...
Dylan Käser, Tobias Schöberl, Norman Lüchinger, Yuliia Kominko, Sebastian Sabisch, Matthias Klimpel, Andrii Kanak, Sergii Yakunin, Detlef Günther, Maksym V. Kovalenko, Dmitry N. Dirin   +10 more
wiley   +1 more source

Transmission Raman Spectroscopy (TRS) for Accurate Authentication of API in Coated Hydroxychloroquine (HCQ) Tablets

Journal of Raman Spectroscopy, EarlyView.
We report the development and use of a transmission Raman spectroscopy (TRS) system for a more accurate but nonintrusive way of authentication of API in coated HCQ tablets which otherwise is not possible using the backscattered (BS) configuration of Raman spectroscopy. The coating interference is found to be almost zero in case of the TRS and a greater
Vijay Kumar, Khan Mohammad Khan, Hemant Krishna, Khageswar Sahu, Srinibas Satapathy, Shovan Kumar Majumder   +5 more
wiley   +1 more source

Exploring the surface properties of Transneptunian Objects and Centaurs with polarimetric FORS1/VLT observations

, 2006
Polarization is a powerful remote-sensing method to investigate solar system bodies. It is an especially sensitive diagnostic tool to reveal physical properties of the bodies whose observational characteristics are governed by small scatterers (dust ...
Appenzeller, Barucci, Belskaya, Boehnhardt, Brown, Bus, Davies, Duffard, Fornasier, Foster, Gomes, Groussin, H. Boehnhardt, I. Belskaya, Jewitt, K. Muinonen, Kelsey, L. Kolokolova, Licandro, Luu, Luu, Lyot, M. A. Barucci, Marchi, Meech, Muinonen, Ortiz, Patat, Pinilla-Alonso, Romon-Martin, Rosenbush, S. Bagnulo, Shkuratov, Shkuratov, Tegler   +34 more
core   +4 more sources

Embedding Fiber Segment Interferometry for Localization of Defects in Composite Structures

Polymer Composites, EarlyView.
Graphical representation of composite structures with embedded fiber optic sensors for structural health monitoring, enabling strain measurement and damage localization under mechanical loading. ABSTRACT In the area of structural health monitoring (SHM), embedding strain sensors into smart composites is a key strategy for detecting failures arising ...
Shiva Mohammadkarimi, Christoph Hemeling, Thomas Kissinger, Florian Puch   +3 more
wiley   +1 more source