Results 71 to 80 of about 5,194 (200)

NMR of Insensitive Nuclei Enhanced by Dynamic Nuclear Polarization

CHIMIA, 2011
Despite the powerful spectroscopic information it provides, Nuclear Magnetic Resonance (NMR) spectroscopy suffers from a lack of sensitivity, especially when dealing with nuclei other than protons. Even though NMR can be applied in a straightforward manner when dealing with abundant protons of organic molecules, it is very challenging to address ...
Miéville, Pascal, Jannin, Sami, Helm, Lothar, Bodenhausen, Geoffrey   +3 more
openaire   +6 more sources

Analysis and Design of a Wideband Jaumann-Like Radar Absorber Offering High Angular Stability and Polarization Insensitivity

A circuit model of a metasurface antenna cover exhibiting absorption properties in a wide frequency band (1 to 11 GHz) and a transmission window around 5.5 GHz is developed to provide some physical insight into the operation of a frequency selective ...
Anagnostou, Dimitris E.; id_orcid, Ahmad, Aqsa, Hodgkinson, Callum, Podilchak, Symon K.   +3 more
core   +1 more source

Polarization-indipendent Kerr coefficient measurement in optical fiber

, 1996
A novel cross-phase modulation scheme that permits measurement of the optical Kerr coefficient in nonpolarization-preserving fiber is presented. The scheme is based on a Michelson-type interferometer in which one mirror is replaced by an orthoconjugated ...
FELLEGARA A., BOFFI, PIERPAOLO, SACCHETTO P., MELLONI, ANDREA IVANO, AMATO L., MARTINELLI, MARIO   +5 more
core   +1 more source

Dual-Band Compact Metamaterial-Inspired Absorber with Wide Incidence Angle and Polarization Insensitivity for GSM and ISM Band Applications [PDF]

, 2018
A dual-band metamaterial inspired microwave absorber composed of concentric two crossed double-arrow shaped resonators, ring resonator with four splits at the corners and square ring resonator is presented.
M. Palandoken, T. Upadhyaya, K. P. Kaur
core  

Rotational symmetric metamaterial structure of emblemed number connected with continuous transmission line for EM wave shielding applications

Engineering Science and Technology, an International Journal
Electromagnetic (EM) wave shielding in modern wireless systems encounters critical challenges, including polarization insensitivity, broadband operation, and compact design requirements. This work introduces a rotationally symmetric metamaterial absorber
Md. Ismail Hossen, Saif Hannan, Mohammad Tariqul Islam, Abdulmajeed M. Alenezi, Mohamed S. Soliman   +4 more
doaj   +1 more source

Ni-PI-Ni based nanoarchitectonics near-perfect metamaterial absorber with incident angle stability for visible and near-infrared applications

International Journal of Optomechatronics
This article presents a wideband metamaterial absorber (WMMA) for the visible and near-infrared (NIR) region application. The proposed metamaterial absorber comprises three layers of sandwiched (metal-dielectric-metal) model based on Nickel-Polyamide ...
Abu Hanif, Touhidul Alam, Mohammad Tariqul Islam, Mohammad Lutful Hakim, Iskandar Yahya, Saleh Albadran, Md. Shabiul Islam, Mohamed S. Soliman   +7 more
doaj   +1 more source

Mirror-symmetric double-negative metamaterial resonator with polarization insensitivity and tunable sandwiched structure for multiband wireless communications. [PDF]

Heliyon, 2023
Ji Z, Cao W, Gao M, Liu Y, Chu W, Zhang Q.   +5 more
europepmc   +1 more source

Polarization insensitivity characterization of dual-band perfect metamaterial absorber for K band sensing applications. [PDF]

Sci Rep, 2021
Hakim ML, Alam T, Almutairi AF, Mansor MF, Islam MT.   +4 more
europepmc   +1 more source

FR2/mmWave, N258 and N261 Bands, 5G Frequency-Compatible Ultra-Thin Metamaterial Absorber with Polarization Insensitivity for EMI shielding Applications

Since adopting 5G technology, a notable rise in the prevalence of electromagnetic (EM) waves in the environment has become a significant concern. To reduce EM interference, broadband metamaterial absorbers offer an alternative solution for protecting ...
Teber, Ahmet
core   +1 more source

An Ultrathin Wideband Angularly Stable Frequency Selective Surface Bandpass Filter for S-C Band Coverage

Applied Sciences
This paper presents a novel ultrathin frequency selective surface (FSS) bandpass filter with an extraordinary wideband tailored for operating within the S-C bands. The filter structure entails a double-layer FSS structure with mutually perpendicular unit
Francesca Pascarella, Danilo Brizi, Agostino Monorchio   +2 more
doaj   +1 more source