Research Papers

Photonic crystal waveguide-based biosensor for detection of diseases

[+] Author Affiliations
Harshita Chopra, Rajinder S. Kaler, Balveer Painam

Thapar University, Optical Fiber Communication Research Laboratory, ECE Department, Patiala, Punjab 147004, India

J. Nanophoton. 10(3), 036011 (Aug 22, 2016). doi:10.1117/1.JNP.10.036011
History: Received May 10, 2016; Accepted August 2, 2016
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Abstract.  A biosensor is a device that is used to detect the analytes or molecules of a sample by means of a binding mechanism. A two-dimensional photonic crystal waveguide-based biosensor is designed with a diamond-shaped ring resonator and two waveguides: a bus waveguide and a drop waveguide. The sensing mechanism is based on change in refractive index of the analytes, leading to a shift in the peak resonant wavelength. This mechanism can be used in the field of biomedical treatment where different body fluids such as blood, tears, saliva, or urine can be used as the analyte in which different components of the fluid can be detected. It can also be used to differentiate between the cell lines of a normal and an unhealthy human being. Average value of quality factor for this device comes out to be 1082.2063. For different analytes used, the device exhibits enhanced sensitivity and, hence, it is useful for the detection of diseases.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Harshita Chopra ; Rajinder S. Kaler and Balveer Painam
"Photonic crystal waveguide-based biosensor for detection of diseases", J. Nanophoton. 10(3), 036011 (Aug 22, 2016). ; http://dx.doi.org/10.1117/1.JNP.10.036011


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