scholarly journals Slow light Mach–Zehnder interferometer as label-free biosensor with scalable sensitivity

2016 ◽  
Vol 41 (4) ◽  
pp. 753 ◽  
Author(s):  
Kun Qin ◽  
Shuren Hu ◽  
Scott T. Retterer ◽  
Ivan I. Kravchenko ◽  
Sharon M. Weiss
Keyword(s):  
Slow Light ◽  
Zehnder Interferometer ◽  
Label Free ◽  
Mach Zehnder Interferometer

scholarly journals Live E. coli bacteria label-free sensing using a microcavity in-line Mach-Zehnder interferometer

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Monika Janik ◽  
Marcin Koba ◽  
Anna Celebańska ◽  
Wojtek J. Bock ◽  
Mateusz Śmietana
Keyword(s):  
Zehnder Interferometer ◽  
Label Free ◽  
E Coli ◽  
Mach Zehnder Interferometer

scholarly journals Comparison of lithium niobate and silicon substrate on phase shift and efficiency performance for mach-zehnder interferometer modulator

2021 ◽  
Vol 22 (1) ◽  
pp. 352
Author(s):  
Nor Hidayah Roslan ◽  
Aziati H. Awang ◽  
Mohd Hanapiah M. Yusoff ◽  
Ahmad Rifqi Md Zain
Keyword(s):  
Phase Shift ◽  
Lithium Niobate ◽  
Power Consumption ◽  
Low Power ◽  
Slow Light ◽  
High Efficiency ◽  
Zehnder Interferometer ◽  
Good Time ◽  
Major Drawback ◽  
Mach Zehnder Interferometer

<span>In this study, the low-group velocity slow-light mach-zehnder interferometer (MZI) modulator, low loss and high efficiency for two modulator substrate lithium niobate (LN) and silicon were presented and optimized at 1.55µm operating wavelength. The high power consumption of conventional modulator was the major drawback in the operation of modulators. Therefore, it was a good time for low-power modulator design and development and to compare the LN and Silicon modulator on the phase shifted using the slow-light technique by designing the full MZI modulator consisting of splitter and combiner on both substrates. The phase shift of LN is 2% compared with the silicon 0.09% and higher phase shift give better performance with low power consumption due to the change of modulating voltage of the MZI modulator for LN while the silicon depends on modulating voltage manipulating concentration of charge carrier in doped silicon.</span>

scholarly journals A single-layer, planar, optofluidic Mach–Zehnder interferometer for label-free detection

Lab on a Chip ◽  
2011 ◽  
Vol 11 (10) ◽  
pp. 1795 ◽  
Author(s):  
Michael Ian Lapsley ◽  
I.-Kao Chiang ◽  
Yue Bing Zheng ◽  
Xiaoyun Ding ◽  
Xiaole Mao ◽  
...  
Keyword(s):  
Single Layer ◽  
Zehnder Interferometer ◽  
Label Free ◽  
Label Free Detection ◽  
Mach Zehnder Interferometer

scholarly journals All-Optical Tunable Plasmonic Biosensor Made of Graphene and Metamaterial

2021 ◽  
Author(s):  
Fariba Lotfi ◽  
Nafiseh Sang-Nourpour ◽  
Reza Kheradmand
Keyword(s):  
Environmental Control ◽  
Silicon Layer ◽  
Zehnder Interferometer ◽  
Label Free ◽  
Biomedical Sensing ◽  
Highly Sensitive ◽  
Lossy Media ◽  
Path Structure ◽  
Cancerous Cells ◽  
Mach Zehnder Interferometer

Abstract We demonstrate a novel, label-free and real-time tunable infrared biosensor by employing surface-plasmon polaritons in asymmetric Mach-Zehnder interferometer. The waveguides cladding in the Mach-Zehnder interferometer is made of lossy media with positive and negative electromagnetic susceptibilities, including metamaterial, metal and graphene. The core consists of dielectric media. We introduce two configurations for our biosensor structure. First configuration is an open-path structure and the second one consists of a sample housing made of a silicon layer around the structure. We also present a tunable biosensor by applying a gate voltage to the graphene in the structure. We employ three different cancerous cells, including cervical, breast and basal, as samples to examine the capabilities of the biosensor. Our biosensor structure is highly sensitive, compared to the existing biosensors in the literature, with the sensitivity for basal cancer cell of 1034THz/RIU. The proposed biosensor structure is compact and easy to fabricate with applications in biomedical sensing and environmental control to detect water pollutants.

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