Results 91 to 100 of about 2,749,960 (304)

Polarization stabilizer for polarization-division multiplexed optical systems

, 2007
An endless polarization stabilization method is applied to a 40-Gbit/s RZ-DQPSK polarization-division multiplexed optical system. The effectiveness of the polarization stabilizer in allowing the polarization demultiplexing of the two orthogonally ...
Maddalena Ferrario, BOFFI, PIERPAOLO, A. Righetti, Rocco Siano, Aldo Righetti, Matteo Torregiani, M. Martinelli, Lucia Marazzi, Paola Parolari, L. Marazzi, Mario Martinelli, SIANO, ROCCO, MARAZZI, LUCIA, P. Martelli, P. Parolari, RIGHETTI, ALDO, M. Ferrario, MARTINELLI, MARIO, M. TORREGIANI, PIETRALUNGA, SILVIA MARIA, S.M. Pietralunga, MARTELLI, PAOLO, FERRARIO, MADDALENA, PAROLARI, PAOLA, Silvia M. Pietralunga, P. Boffi, Paolo Martelli, Pierpaolo Boffi, Siano R, Martelli P, Righetti A, Pietralunga SM, Boffi P, Torregiani M, Marazzi L, Parolari P, Martinelli M, Ferrario M   +37 more
core   +1 more source

Transmission of 1.2 Gbit/s polarization-multiplexed UWB signals in PON with 0.76 bit/s/Hz spectral efficiency [PDF]

, 2009
The transmission of 1.2 Gbit/s Polarization-Multiplexed OFDM-based UWB signals in PON is proposed and experimentally demonstrated.
Roberto Llorente, Marti, Javier, Morant, Maria, Llorente, Roberto, Javier Marti, Maria Morant, Joaquin Perez, Perez Soler, Joaquin   +7 more
core   +1 more source

Biomineral‐Inspired Organic/Inorganic Colloidal Liquid‐Crystalline Hybrids for Photoresponsive Adhesion

Advanced Functional Materials, EarlyView.
A new class of photoresponsive liquid‐crystalline (LC) adhesives based on biomineral‐inspired organic/inorganic colloidal hybrids is reported. These colloidal LC materials are formed by hybridization of a hydroxyapatite nanorod with azobenzene‐based forklike molecules.
Junya Uchida, Ryuta Kiguchi, Riki Kato, Yuta Nishina, Takashi Kato   +4 more
wiley   +1 more source

Fiber‐Endface‐Integrated PdSe2/2H‐MoTe2 Heterojunction Photodetector for Broadband Linear‐Polarization Detection

Advanced Materials Interfaces
The development of next‐generation optical networks demands miniaturization, polarization discrimination, and broadband operation. Compared to current complex systems with numerous bulky opto‐electro‐mechanical elements arranged in tandem along the ...
Zexing Zheng, Qingde Yang, Huishan Ma, Yu Qian, Shuguang Zhu, Chao Yang, Jiale He, Changlong Liu, Weiwei Tang, Qiaonan Dong, Min Qiu, Xiaoshuang Chen   +11 more
doaj   +1 more source

Conformational Switching of Proteins on Material Surfaces Enabled by Peptide‐Oriented Adsorption

Advanced Functional Materials, EarlyView.
Responsive biointerfaces could be achieved using conformationally responsive proteins; however, their interconversion can be lost upon surface adsorption. Herein, we demonstrate that the incorporation a Au binding peptide into calmodulin allows for binding control on Au wherein the protein retains conformational switching. This capability was confirmed
Sakthirupini Ramamurthy, Kyle B. Meerbott, Lorenzo Travaglini, Garima S. Dobhal, Artur Sawicki, Marc R. Knecht, Tiffany R. Walsh, Dominic J. Glover   +7 more
wiley   +1 more source

All-optical polarization-filtered subwavelength imaging in microwave regime via atom-based polarization holography

Communications Physics
Polarization imaging is essential to reveal rich information of the vectorial nature of microwaves. However, selective imaging of specific polarization components with subwavelength resolution remains challenging. Here, we propose atom-based polarization
Ziyao Lyu, Tao Dong, Yijie Du, Hong Chen, Changshun Wang   +4 more
doaj   +1 more source

An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots

Advanced Functional Materials, EarlyView.
This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese, Bokeon Kwak, Gaia de Marzo, Giulia Coco, Valentina Antonaci, Leonardo Lamanna, Massimo De Vittorio, Dario Floreano, Mario Caironi   +8 more
wiley   +1 more source

Optical polarization manipulations with anisotropic nanostructures

PhotoniX
Over the past few decades, metasurfaces have revolutionized conventional bulky optics by providing an effective approach to manipulate optical waves at the subwavelength scale.
Zhancheng Li, Wenwei Liu, Yuebian Zhang, Hua Cheng, Shuang Zhang, Shuqi Chen   +5 more
doaj   +1 more source

Features of focusing of optical vortices using subwavelength elements with varying height of odd and even relief zones

Компьютерная оптика
In this work, the propagation of optical vortices with circular, radial, and azimuthal polarization through subwavelength ring gratings with standard and GRIN substrates using a finite difference time domain method is numerically simulated.
D.A. Savelyev
doaj   +1 more source

An Optimized Drude's Equation For Polarization Measurement in the Visible Region and Concentrations Estimation

IEEE Photonics Journal, 2018
Drude's equation, a classical equation, can be used to express the properties of optic polarization. In the paper, an optimized two-term Drude's equation is introduced for expressing the specific rotation.
Yu Lei, Hongzhi Jia, Xun Xu, Shixin Jiang   +3 more
doaj   +1 more source