Results 241 to 250 of about 3,851 (271)

Effect of a magnetic field on self-modulation oscillations in a ring chip laser

Quantum Electronics, 2001
The phase shift of self-modulation oscillations induced in a solid-state ring laser by an external magnetic field is studied theoretically and experimentally. It is found that the phase shift is caused by the amplitude nonreciprocity of the ring laser due to the Faraday effect in an active medium.
Nikolai V Kravtsov, E G Lariontsev, Nikolai I Naumkin, S S Sidorov, V V Firsov, S N Chekina   +5 more
openaire   +1 more source

On a construction of modules over a polynomial ring in the case of an arbitrary field

Russian Mathematical Surveys, 2004
The author reminds us of a construction of modules over a polynomial ring, introduced in [Mat. Sb. 193, No. 3, 115-134 (2002; Zbl 1019.16005)], namely: Let \(A\) be a finite-dimensional associative algebra with \(1\) over a field \(k\) with basis \(e_1,\dots,e_d\) and let \(\varrho\colon A\to M_n(k)\) be its matrix representation corresponding to an ...
openaire   +2 more sources

Electric-field drive optical modulator using Si ring resonator

2008 International Conference on Photonics in Switching, 2008
The optical modulation of Si ring resonator by applying electric-field was, for the first time, achieved although carrier injection type modulations were reported. The 33% optical modulation was realized at applied voltage of 200 V.
Y. Amemiya, Y. Tanushi, T. Tokunaga, S. Yokoyama   +3 more
openaire   +1 more source

The ring of integers of an Abelian extension of an algebraic number field as a Galois module

Journal of Soviet Mathematics, 1982
The ringO of integers of a finite Abelian extension K of an algebraic number field k is studied as a module over the group ring Λ=σ[G], where σ is the ring of integers of k and G is the Galois group of K/k. It is proved that the ring σ is a decomposable Λ-module if and only if there exists in K/k an intermediate extension K/F. F≠K, whose degree divides
openaire   +2 more sources

Adiabatic modulation of a superconducting quantum interference device (SQUID) ring by an electromagnetic field

Journal of Physics: Condensed Matter, 1998
In this paper we consider the modulation of a SQUID ring (a Josephson weak link enclosed by a thick superconducting ring) by an external electromagnetic (em) field for the case where the ring remains adiabatically in its ground state. We demonstrate that very good agreement can be found between experimental modulation data and the results predicted ...
R Whiteman, V Schöllmann, M Everitt, T D Clark, R J Prance, H Prance, J Diggins, G Buckling, J F Ralph   +8 more
openaire   +1 more source

Giant on-chip non-reciprocity and gyration through synthetic fields in modulated LiNbO3 ring resonators

Frontiers in Optics + Laser Science 2023 (FiO, LS), 2023
We experimentally realize a photonic gauge potential in an electro-optically modulated LiNbO3 nanophotonic resonator chain. We show that the induced synthetic fields can be adjusted to produce as much as 60 dB non-reciprocal contrast for light transmission and additionally can achieve optical gyration.
Oğulcan E. Örsel, Jiho Noh, Gaurav Bahl   +2 more
openaire   +1 more source

Exploiting Evanescent Field Polarization for Giant Chiroptical Modulation from Achiral Gold Half-Rings

ACS Nano, 2018
For applications seeking to realize on-chip polarization-discriminating nanoantennas, efficient energy conversion from surface waves to far-field radiation is desirable. However, the response of individual nanoantennas to the particular polarization states achievable in surface waves, such as evanescent fields, has not yet been thoroughly investigated.
Kyle W. Smith, Lauren A. McCarthy, Alessandro Alabastri, Luca Bursi, Wei-Shun Chang, Peter Nordlander, Stephan Link   +6 more
openaire   +2 more sources

Phase shift of self-modulation oscillations in a ring chip Nd:YAG laser in a magnetic field

Quantum Electronics, 2001
A ring chip Nd:YAG laser operating in the self-modulation regime of type I in the presence of a permanent magnetic field is shown to display a magnetic-field-dependent phase shift of self-modulation oscillations in counterpropagating waves.
Nikolai V Kravtsov, E G Lariontsev, S S Sidorov, S N Chekina, V V Firsov   +4 more
openaire   +1 more source

Enabling Internal Electric Fields to Enhance Energy and Environmental Catalysis

Advanced Energy Materials, 2023
Jin-Tao Ren, Zhong-Yong Yuan
exaly  

Model-Theoretic Algebra With particular emphasis on fields, rings, modules

Bulletin of the London Mathematical Society, 1993
openaire   +1 more source