Very high Q-factor resonators in monocrystalline silicon

1990 ◽  
Vol 21 (1-3) ◽  
pp. 323-327 ◽  
Author(s):  
R.A. Buser ◽  
N.F. De Rooij
Keyword(s):  
Monocrystalline Silicon ◽  
Q Factor ◽  
High Q ◽  
Very High

scholarly journals Deformed microcavities with very high Q-factors and directional farfield emission

2020 ◽  
Vol 238 ◽  
pp. 01006
Author(s):  
Arne Behrens ◽  
Martí Bosch ◽  
Martina Hentschel ◽  
Stefan Sinzinger
Keyword(s):  
Surface Roughness ◽  
State Of The Art ◽  
Whispering Gallery Mode ◽  
Q Factor ◽  
Tapered Fiber ◽  
High Q ◽  
Whispering Gallery ◽  
Q Factors ◽  
Very High

We report the design and optimized fabrication of deformed whispering gallery mode resonators in silica with solely ICP-RIE. This allows us to control the morphology of the resonators more freely and results in low surface roughness. The light was coupled into the resonator using a state of the art tapered fiber approach and we determined the Q-factor in the range of 105

A very high Q-factor inductor using MEMS technology

2010 ◽  
Author(s):  
N. Khalid ◽  
K. Shah ◽  
J. Singh ◽  
H. P. Le ◽  
J. Devlin ◽  
...  
Keyword(s):  
Q Factor ◽  
High Q ◽  
Mems Technology ◽  
Very High

Very High Q-Factor Bandpass Filter Using Additive Manufacturing

2021 ◽  
Author(s):  
Enrique Lopez-Oliver ◽  
Cristiano Tomassoni ◽  
Giuseppe Addamo ◽  
Flaviana Calignano ◽  
Mauro Lumia ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Bandpass Filter ◽  
Q Factor ◽  
High Q ◽  
Very High

Very High Q-Factor Based On G-Shaped Resonator Type Metamaterial Absorber

2018 ◽  
pp. 160 ◽  
Author(s):  
Khalid Saeed Lateef Al-Badri
Keyword(s):  
Resonance Frequency ◽  
Metamaterial Absorber ◽  
Q Factor ◽  
High Q ◽  
Image Sensing ◽  
At Resonance ◽  
Band Filter ◽  
Simulation Results ◽  
Very High ◽  
Triple Band

High Q-factor based on absorption can be achieved by tuning (the reflection and the transition percentage). In this work, the simple design and simulated in S-band have been investigated. The simulation results of G-shape resonator are shown triple band of absorption peaks 60%, 91.5%, and 70.3%) at resonance frequency 2.7 GHz, 3.26 GHz, and 4.05 GHz respectively. The results exhibited very high of the Q-factor ( 271 ) at resonance frequency ( 3.26 GHz ).  The high Q-factor can be used to enhance the sensor sensing, narrowband band filter and  image sensing.

scholarly journals High-Q-Factor Tunable Silica-Based Microring Resonators

Photonics ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 256
Author(s):  
Yue-Xin Yin ◽  
Xiao-Pei Zhang ◽  
Xiao-Jie Yin ◽  
Yue Li ◽  
Xin-Ru Xu ◽  
...  
Keyword(s):  
Optical Communications ◽  
Microring Resonator ◽  
Microring Resonators ◽  
Q Factor ◽  
Notch Depth ◽  
Critical Coupling ◽  
Practical Application ◽  
Coupling Condition ◽  
High Q ◽  
Racetrack Resonator

A high-Q-factor tunable silica-based microring resonator (MRR) is demonstrated. To meet the critical-coupling condition, a Mach–Zehnder interferometer (MZI) as the tunable coupler was integrated with a racetrack resonator. Then, 40 mW electronic power was applied on the microheater on the arm of MZI, and a maximal notch depth of about 13.84 dB and a loaded Q factor of 4.47 × 106 were obtained. The proposed MRR shows great potential in practical application for optical communications and integrated optics.

Dielectric-loaded L-band filters for high-power space applications

2021 ◽  
pp. 1-11
Author(s):  
Paolo Vallerotonda ◽  
Fabrizio Cacciamani ◽  
Luca Pelliccia ◽  
Alessandro Cazzorla ◽  
Davide Tiradossi ◽  
...  
Keyword(s):  
High Power ◽  
Dielectric Resonators ◽  
Q Factor ◽  
Rf Power ◽  
Space Applications ◽  
High Q ◽  
Critical Issues ◽  
L Band ◽  
Multipactor Discharge ◽  
Filter Response

Abstract The design and first experimental results of Tx and Rx L-band bandpass filters for a high-power satellite diplexer are presented in this paper. Designed in the framework of an ESA ARTES AT project, the filters are based on TM010 mode dielectric resonators. These resonators allow for better results in terms of volume occupation with respect to other dielectric resonators still maintaining high Q-factor values (>2000). Volume saving above 30% is achieved with respect to standard coaxial filters. The filter geometries and materials have been chosen in order to improve the power-handling and to cope with related critical issues for space applications (i.e. avoid any multipactor discharge in the operating RF power range and low-PIM response). Measurements of Tx filter show good correlation with the design in terms of central frequency, BW, and unloaded Q-factor (almost 3000). Measurements of Rx filter show a worse correlation with the design in terms of filter response shape. This is ascribed to size tolerances of one of the filter resonators. Multiple analyses are ongoing to remove this degradation in the final engineering model.

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