Results 41 to 50 of about 221,879 (297)

Electrohydrodynamically Printed Microlens Arrays with the High Filling Factor near 90%

Photonics
Microlens arrays (MLAs) are essential for light collection, extraction, and high-resolution imaging. However, most reported MLAs have a limited filling factor.
Linkun Zhong, Weixuan Liu, Hongbo Gong, Ye Li, Xueqian Zhao, Delai Kong, Qingguo Du, Bing Xu, Xiaoli Zhang, Yan Jun Liu   +9 more
doaj   +1 more source

Eigenvalue calibration methods for polarimetry [PDF]

Journal of the European Optical Society-Rapid Publications, 2012
Complex polarisation sensitive systems such as imaging Mueller matrix polarimeters are commonly calibrated using the eigenvalue calibration method. In this paper we present an extensive review of the method and an existing variant.
Macías-Romero C., Török P.
doaj   +1 more source

Solving the inverse problem of high numerical aperture focusing using vector Slepian harmonics and vector Slepian multipole fields

, 2012
A technique using vector Slepian harmonics and multipole fields is presented for a general treatment of the inverse problem of high numerical aperture focusing.
Bokor, Braat, Braat, Chen, Chen, Devaney, Foreman, Jabbour, Jahn, Jahn, Kant, Kant, Kornél Jahn, Levy, Nándor Bokor, Sheppard, Sherif, Török, Wang, Wang, Wang, Wolf, Zhao   +22 more
core   +1 more source

High numerical aperture multicomponent glass fiber

Applied Optics, 1980
High-numerical-aperture (N.A. 0.53) multicomponent glass fibers with 20 dB/km optical loss have been obtained. Glass containing BaO is most promising for fabrication of high-N.A. low-loss optical fibers over a wide wavelength region. The BaO-core glass/multicomponent-clad glass fibers show the following notable characteristics: relatively low optical ...
S. Shibata, Seiko Mitachi, Shiro Takahashi   +2 more
openaire   +3 more sources

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

Molecular Oncology, EarlyView.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller, Susanne Ebner, Carmen Haselrieder, Julia K. Günther, Astrid Drasche, Sophie Strich, Chiara Volani, Andrea Medici, Aleksandar Nikolajevic, Alex Deltedesco, Johannes E. Sigmund, Michael J. Blumer, Martin Hermann, Johanna Vanacker, Gerald Brandacher, Eduard Stefan, Omar Torres‐Quesada, Jakob Troppmair   +17 more
wiley   +1 more source

Circuital and Numerical Models for Calculation of Shielding Effectiveness of Enclosure with Apertures and Monitoring Dipole Antenna Inside [PDF]

, 2013
In this paper, circuital and numerical models of metal In this paper, circuital and numerical models of metal enclosure with apertures are considered for the purpose of accurate shielding effectiveness calculation.
B. Milovanović, N. Doncov, T. Cvetković, V. Milutinović   +3 more
core   +1 more source

Lensfree on-chip microscopy over a wide field-of-view using pixel super-resolution. [PDF]

, 2010
We demonstrate lensfree holographic microscopy on a chip to achieve approximately 0.6 microm spatial resolution corresponding to a numerical aperture of approximately 0.5 over a large field-of-view of approximately 24 mm2.
Bishara, Waheb, Coskun, Ahmet F, Ozcan, Aydogan, Su, Ting-Wei   +3 more
core   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

The optimal form of the scanning near-field optical microscopy probe

, 2005
A theoretical approach to determine the optimal form of the near-field optical microscope probe is proposed. An analytical expression of the optimal probe form with subwavelength aperture has been obtained.
Arslanov N M Moiseev S A, Arslanov N M Moiseev S A Samartsev V V, Betzig E, Betzig E, Betzig E, Born M, Bouwkamp C J, Drews D, Ji J-Y, Katzenellenbaum B Z, Katzenellenbaum B Z, Kuznetsova T I, N M Arslanov, Novotny L, Xie X S   +14 more
core   +1 more source

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

Advanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel, Lea Dierker, Antoine Eyram Kwame, Kim Nora Wagner, Jonas J. Unterholzner, Jan‐Henning Dirks, Dorothea Brüggemann   +6 more
wiley   +1 more source