Results 111 to 120 of about 35,499 (315)

Analytical modelling of Thirty Meter Telescope optics polarization [PDF]

, 2015
The polarization introduced due to Thirty Meter Telescope (TMT) optics is calculated using an analytical model. Mueller matrices are also generated for each optical element using Zemax, based on which the instrumental polarization due to the entire ...
Sen, Asoke, Shashi Bhushan Pandey, G. C. Anupama, Asoke Sen, Ramya M. Anche, Jenny Atwood, Skidmore, Warren, Pandey, Shashi Bhushan, Sivarani Tirupathi, Anche, Ramya M., Krishna Reddy, Anupama, G. C., Sengupta, Sujan, Sujan Sengupta, Atwood, Jenny, Warren Skidmore, A. N. Ramaprakash, Ramaprakash, A. N., K. Sankarasubramanian, Sen, Asoke Kumar, Sankarasubramanian, K., Tirupathi, Sivarani, Reddy, Krishna   +22 more
core   +1 more source

Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita, Lucas R. L. Norg, Patrick Diederen, Clint van Hoesel, Christ H. L. Weijtens, Peter A. Bobbert, Reinder Coehoorn   +6 more
wiley   +1 more source

Resolving the Cu(bdc) Conundrum: Identifying Non‐Porous Packing of Prototypical Coordination‐Network Thin Films Combining Advanced Diffraction Techniques and Computational Modelling

Advanced Functional Materials, EarlyView.
Solution‐processed Cu(bdc) forms prototypical MOF thin films for which a multitude of not fully satisfactory structural models have been suggested. Combining rotating grazing‐incidence diffraction and X‐ray reflectivity on two complementary samples with density‐functional theory, we first discard the previously suggested models and then identify a non ...
Narges Taghizade, Mario Fratschko, Robbin Steentjes, Mercedes Linares‐Moreau, Paolo Falcaro, Christof Wöll, Roland Resel, Egbert Zojer   +7 more
wiley   +1 more source

Polarization Ellipticity Compensation in Polarization Second-Harmonic Generation Microscopy without Specimen Rotation [PDF]

, 2011
In imaging anisotropic samples with optical microscopy, a controlled, polarized light source can be used to gain molecular information of fibrous materials such as muscles and collagen fibers.
CHOU, CHEN-KUAN;CHEN, WEI-LIANG;LIN, SUNG-JAN;LEE, HSUAN-SHU;DONG, CHEN-YUAN, 周政寬;陳維良;林頌然;李宣書;董成淵   +1 more
core   +1 more source

A Bilayered Inorganic‐Metal Interface Enables Highly Reversible Aluminum Deposition for Long‐Life Aqueous Batteries

Advanced Functional Materials, EarlyView.
A gradient M/MOx (M = Sn, Cu, Cd) synergistic interphase was constructed on Al via a one‐step displacement reaction. This interphase leverages high aluminophilicity and ion‐buffering capability to accelerate desolvation, enhance Al3+ transport, and suppress side reactions, enabling ultrastable symmetric cell operation at 0.05 mA cm−2 for 1800 h with an
Shuang Cheng, Xiaomin Cheng, Linge Li, Yaping Wang, Jing Zhang, Yongzheng Zhang, Hongzhen Lin, Jian Wang   +7 more
wiley   +1 more source

Meta-optical imaging at thermal wavelengths

JPhys Photonics
The field of meta-optics has grown to include metalenses spanning the ultraviolet to terahertz regimes. Imaging is a key application of meta-optics, with recent works demonstrating meta-optical imaging with advanced functionalities including wide field ...
Anna Wirth-Singh, Aurelia M Brook, Rose Johnson, Johannes E Fröch, Arka Majumdar   +4 more
doaj   +1 more source

Polarization-controlled contrasted images using dye-doped nematic liquid crystals [PDF]

, 2009
We explore the polarization dependence of the nonlinear response of a planar nematic liquid crystal cell doped with 1% wt of methyl red dye. The results obtained show that the refractive index change can be switched from a positive value to a negative ...
JULIAN DAVID SANCHEZ DE LA LLAVE, DANIEL ALBERTO MAY ARRIOJA, RUBEN RAMOS GARCIA, MARCELO DAVID ITURBE CASTILLO, JULIO CESAR RAMIREZ SAN JUAN, OSCAR BALDOVINO PANTALEON, ROSARIO GUADALUPE PORRAS AGUILAR   +6 more
core  

Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC

Advanced Functional Materials, EarlyView.
The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi, Minh Tuan Luu, Christopher Linderälv, Vytautas Žalandauskas, Marianne Etzelmüller Bathen, Nguyen Tien Son, Takeshi Ohshima, Gergő Thiering, Lukas Razinkovas, Ronald Ulbricht   +9 more
wiley   +1 more source

Polarization-sensitive diffractive optics and metasurfaces: “Past is Prologue”

Nanophotonics
Polarization control and switchability are among the most unique features of “metasurfaces” as compared with diffractive optics technologies of the past.
Rubin Noah A., Fainman Yeshaiahu
doaj   +1 more source

Near-infrared Spectrum Characteristics of Micro-Nano Material Based Diffraction Optical Devices

Medžiagotyra
Diffractive optics devices are optical devices in which the amplitude or phase of the incident light is spatially modulated periodically by a micro-nanomaterial based structure.
Zhao JIN, Qiyao XIAO, Yue ZHANG, Cheng SUN, Yongbo DENG, Chengmiao WANG, Qiang FU, Yingchao LI, Huilin JIANG   +8 more
doaj   +1 more source