Results 61 to 70 of about 338,902 (299)

Nonlinear optical switching matrix

Optics Letters, 2003
We show that nonlinear directional couplers with variable coupling coefficients can be used to compose a special kind of switching matrix. The switching matrix can be controlled by the signal itself or by a strong pump. Light routing is realized by adjustment of the power of the signal or the pump.
Gang Jun, Liu, Jun, Liu, Bin Ming, Liang, Qu, Li, Guo Liang, Jin   +4 more
openaire   +2 more sources

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

Molecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni, Antonella Palmese, Stefano Scalera, Laura Cipriani, Davide Mascolo, Patrizia Vici, Teresa Arcuri, Lorena Filomeno, Eriseld Krasniqi, Giovanni Blandino, Giulia Bon, Marcello Maugeri‐Saccà   +11 more
wiley   +1 more source

Optical bistability in a GaAs based polariton diode

, 2008
We report on a new type of optical nonlinearity in a polariton p-i-n microcavity. Abrupt switching between the strong and weak coupling regime is induced by controlling the electric field within the cavity.
A. Yariv, Aristide Lemaître, Daniele Bajoni, Elizaveta Semenova, Esther Wertz, G. Bastard, H. M. Gibbs, Jacqueline Bloch, Pascale Senellart, Robert Kuszelewicz, Sophie Bouchoule, Sylvain Barbay   +11 more
core   +1 more source

Full vectorial analysis of polarization effects in optical nanowires [PDF]

, 2012
We develop a full theoretical analysis of the nonlinear interactions of the two polarizations of a waveguide by means of a vectorial model of pulse propagation which applies to high index subwavelength waveguides.
Afshar V., Afshar V., Almeida, Astar, Boyraz, Daniel, de Sterke, Driscoll, Ebendorff-Heidepriem, Eggleton, Eisenberg, Fatome, Feldman, Fraga, Fujisawa, Gai, Gregori, Hutchings, Hutchings, Jensen, Khan, Kivshar, Koos, Kozlov, Kozlov, Lau, M. A. Lohe, Matera, Menyuk, Millot, Millot, Mägi, Pelusi, Peschel, Petropoulos, Pitois, Pitois, Pitois, Pitois, Poletti, Qin, Seve, Shahraam Afshar V., Stolen, Tanya M. Monro, Turner, Wabnitz, Wabnitz, Wang, Wen Qi Zhang, Winful, Yang, Zakharov, Zhang   +53 more
core   +2 more sources

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

FEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz, Bart Geverts, Johan A. Slotman, Andrea Sacchetti, Stefan Prekovic, Martin E. van Royen, Adriaan B. Houtsmuller   +6 more
wiley   +1 more source

Silicon Non-Blocking 4 × 4 Optical Switch Chip Integrated With Both Thermal and Electro-Optic Tuners

IEEE Photonics Journal, 2019
We experimentally demonstrate an integrated strictly non-blocking silicon 4 × 4 optical switch chip that can be operated in both thermo-optic (TO) and electro-optic (EO) switching modes.
Liangjun Lu, Xiaorui Li, Wei Gao, Xin Li, Linjie Zhou, Jianping Chen   +5 more
doaj   +1 more source

Optically controlled energy transfer in stacked and coplanar polycyclic chromophores [PDF]

, 2010
In the search for enhanced control over the process of resonance energy transfer in multichromophore molecular systems, all-optical mechanisms offer many significant advantages over other systems.
Andrews, D. L., Bradshaw, D.S., Oganesyan, V.S., Peck, J.N.T.   +3 more
core   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source

All-optical switching with transverse optical patterns [PDF]

Physical Review A, 2008
We demonstrate an all-optical switch that operates at ultra-low-light levels and exhibits several features necessary for use in optical switching networks. An input switching beam, wavelength $ $, with an energy density of $10^{-2}$ photons per optical cross section [$ = ^2/(2 )$] changes the orientation of a two-spot pattern generated via ...
Dawes, Andrew M.C., Illing, Lucas, Greenberg, Joel A., Gauthier, Daniel J.   +3 more
openaire   +2 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source