Generation of two Fano resonances using 4×4 multimode interference structures on silicon waveguides

2013 ◽  
Vol 301-302 ◽  
pp. 100-105 ◽  
Author(s):  
Trung-Thanh Le ◽  
Laurence Cahill
2016 ◽  
Vol 24 (14) ◽  
pp. 15351 ◽  
Author(s):  
Shilei Li ◽  
Yunyun Zhang ◽  
Xiaokang Song ◽  
Yilin Wang ◽  
Li Yu

2013 ◽  
Vol 5 (2) ◽  
pp. 151-153
Author(s):  
Candong Hu ◽  
Xiaochan Li ◽  
Tao Zhang ◽  
Miao He ◽  
Ning Zhu ◽  
...  

2011 ◽  
Vol 23 (19) ◽  
pp. 1406-1408 ◽  
Author(s):  
A. Ortega-Monux ◽  
L. Zavargo-Peche ◽  
A. Maese-Novo ◽  
I. Molina-Fernandez ◽  
R. Halir ◽  
...  

1984 ◽  
Vol 86 ◽  
pp. 124-124
Author(s):  
T.J. McIlrath ◽  
V. Kaufman ◽  
J. Sugar ◽  
W.T. Hill ◽  
D. Cooper

Rapid ionization of Cs vapor in a heat pipe at 0.05 torr was achieved by pumping the 6s 2S½ – 7p 2P½ transition (f=0.007)1 with a flash-pumped dye laser at 4593.2A and I MW power output. Photoabsorptian initiated at the end of the laser pulse(≃ 0.5/s) showed the 5p5ns and nd series below and above the 5p52P3/2 threshold at 535.4A. Broad Beutler - Fano resonances appeared in the d series above threshold. The spectrum was recorded photographically on a 10.7m grazing incidence spectrograph using a continuum background generated by a BRV high-voltage spark source with a uranium anode. We will compare the line-shapes and the quantum defect (Lu-Fano2) plot with the predictions of a relativistic random phase calculation.


Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3254
Author(s):  
Yuri Hayashi Isayama ◽  
Hugo Enrique Hernández-Figueroa

A generalization of the concept of multimode interference sensors is presented here for the first time, to the best of our knowledge. The existing bimodal and trimodal sensors correspond to particular cases of those interference sensors. A thorough study of the properties of the multimode waveguide section provided a deeper insight into the behavior of this class of sensors, which allowed us to establish new criteria for designing more sensitive structures. Other challenges of using high-order modes within the sensing area of the device reside in the excitation of these modes and the interpretation of the output signal. To overcome these, we developed a novel structure to excite any desired high-order mode along with the fundamental mode within the sensing section, while maintaining a fine control over the power distribution between them. A new strategy to detect and interpret the output signal is also presented in detail. Finally, we designed a high-order sensor for which numerical simulations showed a theoretical limit of detection of 1.9×10−7 RIU, making this device the most sensitive multimode interference sensor reported so far.


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