Results 191 to 200 of about 30,384 (234)
Some of the next articles are maybe not open access.
2017
Fabry-Perot Cavity Antennas (FPAs) are a type of highly directive planar antennas that offer a promising alternative to standard planar microstrip patch arrays or waveguide slot array antennas. They offer significant advantages in terms of low fabrication complexity, particularly at mm wave frequencies, high radiation efficiency, and good radiation ...
Alexandros Feresidis +2 more
openaire +1 more source
Fabry-Perot Cavity Antennas (FPAs) are a type of highly directive planar antennas that offer a promising alternative to standard planar microstrip patch arrays or waveguide slot array antennas. They offer significant advantages in terms of low fabrication complexity, particularly at mm wave frequencies, high radiation efficiency, and good radiation ...
Alexandros Feresidis +2 more
openaire +1 more source
MEMS tunable silicon Fabry-Perot cavity
SPIE Proceedings, 2007In this paper we present an innovative tunable Fabry-Perot cavity micromachined in silicon. A short summary of the theoretical background of these filters is presented, followed by technical requirements for the design of the dielectric mirror composing the Fabry-Perot cavity and the cavity itself.
Jonathan Masson +2 more
openaire +1 more source
Fabry–Perot Cavity Control for Tunable Raman Scattering
Small, 2023AbstractThe Fabry–Perot (FP) resonator is an intuitive and versatile optical structure owing to its uniqueness in light‐matter interactions, yielding resonance with a wide range of wavelengths as it couples with photonic materials encapsulated in a dielectric cavity.
Taehyun Kim +8 more
openaire +2 more sources
Fabry-Perot with an absorbing etalon cavity
Applied Optics, 1985The properties of the Fabry-Perot interferometer with an absorbing medium in the cavity have been investigated. When very large reflective finesse etalons are used, the interferometer behaves as a long-path absorption cell with a gain, defined as the ratio of the measured absorption over the sample absorption for the same path as the etalon spacer ...
openaire +2 more sources
Double-cavity electrooptic Fabry-Perot tunable filter
Applied Optics, 1982The experimental development of an infrared multiple-cavity electrooptically tuned Fabry-Perot filter using LiNbO(3) is described. This filter, designed for operation in the 3-5-microm spectral band, was demonstrated by angle scanning using a He-Ne laser at 3.39 microm.
openaire +2 more sources
Micromachined Fabry-Perot cavity pressure transducer
IEEE Photonics Technology Letters, 1995A surface micromachined Fabry-Perot cavity used as a pressure sensor has been fabricated using standard IC technology. Dielectric film stacks consisting of layers of silicon dioxide and silicon nitride were used as mirrors. Polysilicon was used as a sacrificial layer that was then removed to form an air gap cavity.
Y. Kim, D.P. Neikirk
openaire +1 more source
Cavity Theory of Fabry Perot Resonator
Japanese Journal of Applied Physics, 1964A theory of Fabry Perot resonator is developed on the basis of the cavity picture, in contrast to interferometer picture of the ordinary theory. The radiation leakage from the open surface is treated as a boundary value problem. This theory is applied to the circular Fabry Perot resonator and numerically calculated for the case of the laser ...
Hisanao Ogura, Yasuo Yoshida
openaire +1 more source
Vibration transducer using an ultrashort Fabry–Perot cavity
Applied Optics, 1995We report here on the development of an optical transducer for mechanical vibration, making use of an ultrashort Fabry-Perot cavity. The noise level measured by a cavity 150 µm long is ~1.3 × 10(-16) m/√Hz at ~1 kHz, which was obtained without a frequency-stabilization system. It was, however, large compared with the shot noise.
N, Mio, K, Tsubono
openaire +2 more sources
Fabry-Perot Cavity for Dielectric Measurements
Review of Scientific Instruments, 1969A technique is described for measuring complex permittivities of low loss dielectric materials with a semiconfocal Fabry-Perot resonator. Equations are derived for calculation of dielectric constant and loss tangent. Results are presented for slip-cast fused silica at 94 GHz.
K. H. Breeden, J. B. Langley
openaire +1 more source
High finesse Fabry–Perot cavities in picosecond regime
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2009Abstract An R&D activity on high finesse passive Fabry–Perot cavities locked to a mode-locked oscillator is described. A new nonplanar four-mirror cavity geometry is proposed to provide stable laser cavity locking operations. Future developments of this R&D are also given.
Brisson, V. +14 more
openaire +2 more sources

