Realization of Coronavirus Testing Kit Using a Combination of a Triangular Photonic Crystal (PhC) Structure and a 412 nm Laser Beam

The design of a Covid-19 testing kit is proposed in this research using a photonic crystal structure (PhC) and a violet laser beam. The basic principle of this structure relies on the phenomenon of absorbance reflectance and transmission at the signal of a 412 nm laser beam. Finally, the transmitted light energy through the PhC structure is the conclusive factor to detect the types of virus which is the function of the reflectance and absorbance. The reflected light energy is computed by plane wave expansion (PWE) whereas the absorbance of light energy is obtained through numerical computation. The notable advantages of this technique are that the virus related to Covid-19 can be recognized by observing the colour of transmitted energy through a photo energy meter. Finally, the outcomes of the research affirm that the sample could be Covid-19 if the output energy would be infrared (IR). Similarly, the sample could be a normal coronavirus, if the output energy would lie within the visible regime.

Realization of 20 Monochromatic Laser Beams Using a Photonic Crystal (PhC) Structure via the Principle of Filtering

The current work employs a Si-based one-dimensional (1-D) photonic struc-ture which delivers 20 different types of monochromatic laser beam via the filtering action. The I/P signals are essentially varying from visible to near infrared (NIR) range to justify the work. Though similar types of work related to filtering application are found in the literature, the present research deals with an output laser beam which could be deployed in different pur-poses vis-a-vis dentistry, dermatology, spectroscopy, printing, holography, barcode scanning, etc. The mechanism of this work incorporates 68 layers of SiO and Si-based 1-D optical waveguide along with their configuration where the plane wave expansion (PWE) method does fulfil the basics of the required mathematics to solve out electromagnetic wave equations. Reflec-tance and transmittance characteristics along with the absorbance are the critical parameters that substantiate the said application.

Identification of Coronavirus (n-CoV) Using a Two-dimensional (2-D) Photonic Crystal Structure (PCS) via the Plane Wave Expansion (PWE) Technique Using a Laser Diode (LD)

COVID 19, a furious virus, exploded across the globe in 2020. Treatment, tracing and testing are the only way to retain a normal life. But the biggest obstacle is the shortage of proper testing kits which makes life horrendous. As a consequence it demands time to ramp up the development of a suitable test kit. In this scenario we propose a kit that is made up of a two-dimensional (2-D) Si-based photonic crystal structure (PCS) that could distinguish the novel coronaviruses (n-CoV) from ordinary coronaviruses. The principle of identification relies on the reflectance, absorbance and transmittance characteristics at the signal of 412 nm wavelength obtained from a laser diode (LD);moreover, the operational mechanism deals with the manipulation of the signal with the proposed PCS structure which contains the virus solution. Finally, the output transmitted energy differentiates the viruses pertaining to their nature;for example, an output with visible light energy gives an indication of normal flu;on the other hand, output energy within the infrared (IR) range confirms the case of novel coronavirus infection.