Optimization procedure for the design of ultrafast, highly efficient and selective resonant cavity enhanced Schottky photodiodes

2000 ◽  
Vol 47 (6) ◽  
pp. 1158-1165 ◽  
Author(s):  
J.A. Jervase ◽  
H. Bourdoucen
Keyword(s):  
Resonant Cavity ◽  
Optimization Procedure ◽  
Highly Efficient

Highly efficient Er–Yb codoped double-clad fiber amplifier with an Yb-band resonant cavity

2017 ◽  
Vol 14 (2) ◽  
pp. 025105 ◽  
Author(s):  
Qun Han ◽  
Yunzhi Yao ◽  
Xiaoyun Tang ◽  
Yaofei Chen ◽  
Wenchuan Yan ◽  
...  
Keyword(s):  
Resonant Cavity ◽  
Fiber Amplifier ◽  
Highly Efficient

Ultrafast & Highly Efficient Resonant Cavity Enhanced Photodiodes

2002 ◽  
Vol 384-385 ◽  
pp. 241-248
Author(s):  
Ekmel Ozbay ◽  
I. Kimukin ◽  
L. Biyikli
Keyword(s):  
Resonant Cavity ◽  
Highly Efficient

A Novel Design Method for Robust Acoustic Dampers With Perforated Plates Backed by a Cavity Operating at Low and High Strouhal Numbers

2012 ◽  
Author(s):  
A. Scarpato ◽  
S. Ducruix ◽  
T. Schuller
Keyword(s):  
Flow Velocity ◽  
Design Method ◽  
Resonant Cavity ◽  
Plate Thickness ◽  
Optimization Procedure ◽  
Absorption Frequency ◽  
Perforated Plates ◽  
Peak Absorption ◽  
Bias Flow ◽  
Optimal Bias

It is known that the frequency of thermo-acoustic instabilities may vary according to various parameters during operation. The design of passive acoustic dampers tuned to damp specific unstable frequencies must then include this aspect to offer robust properties. This problem is tackled here for perforated plates backed by a resonant cavity in the absence of grazing flow. Their current design relies on a relatively complex optimization procedure with a large number of parameters to examine. A new methodology is proposed to reduce this number by finding the optimal parameters maximizing absorption in two limit regimes, where the choice of the optimal bias flow velocity and size of the back cavity can be decoupled. The former is only controlled by the plate porosity while the latter fixes the peak absorption frequency. The analysis also includes effects of the plate thickness. In both regimes, the optimal bias flow velocity is analytically determined. A Helmholtz resonance and a narrow absorption peak in the frequency space characterize the first absorption regime reached at high Strouhal numbers. This regime minimizes the size of the resonant back cavity, but the absorption frequency bandwidth narrows with increasing Strouhal numbers. The second absorption regime reached at low Strouhal numbers operates with a quarter-wave resonator. This regime requires larger cavity depths but offers a wider absorption bandwidth around the peak absorption frequency well suited for low frequency dampers when the bias flow velocity or the unstable frequency may vary within the system. Theoretical predictions are validated against experimental data obtained in the two regimes identified. The expressions derived in this study can be used to improve the design of robust acoustic dampers.

Optimization procedure and fabrication of highly efficient and thermally stable solar coating for receiver operating at high temperature

2016 ◽  
Vol 157 ◽  
pp. 429-437 ◽  
Author(s):  
Salvatore Esposito ◽  
Antonio D’Angelo ◽  
Alessandro Antonaia ◽  
Anna Castaldo ◽  
Manuela Ferrara ◽  
...  
Keyword(s):  
High Temperature ◽  
Optimization Procedure ◽  
Thermally Stable ◽  
Highly Efficient ◽  
Receiver Operating

Realisation of highly efficient 850 nm top emitting resonant cavity light emitting diodes

1999 ◽  
Vol 35 (18) ◽  
pp. 1564 ◽  
Author(s):  
R. Bockstaele ◽  
J. Derluyn ◽  
C. Sys ◽  
S. Verstuyft ◽  
I. Moerman ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Resonant Cavity ◽  
Light Emitting ◽  
Highly Efficient

scholarly journals Ultrafast and highly efficient resonant-cavity-enhanced photodiodes

2003 ◽  
Author(s):  
Ekmel Ozbay ◽  
Ibrahim Kimukin ◽  
Necmi Biyikli
Keyword(s):  
Resonant Cavity ◽  
Highly Efficient

Realization of highly efficient and high-speed resonant cavity LED for coupling to plastic optical fibers

1999 ◽  
Author(s):  
Ronny Bockstaele ◽  
Thierry Coosemans ◽  
Carl Sys ◽  
Luc Vanwassenhove ◽  
An Van Hove ◽  
...  
Keyword(s):  
Optical Fibers ◽  
High Speed ◽  
Resonant Cavity ◽  
Highly Efficient ◽  
Plastic Optical Fibers
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