ORCID Profile
0000-0002-4007-8529
Current Organisation
Australian National University
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Publisher: Optica Publishing Group
Date: 10-2020
DOI: 10.1364/AO.397420
Abstract: Solid core circular and octagonal photonic crystal fibers (CPCF and OPCF) are proposed for analyzing different guiding properties such as dispersion, effective mode area, nonlinearity, and confinement loss from 0.8 to 2.6 µm wavelength. The proposed structures use three different types of background materials: SF10, BK7, and silica. Moreover, the fill fraction is varied by changing the diameter of the air hole where the lattice pitch is unchanged. The proposed PCFs show a high negative dispersion with low confinement loss and small effective mode area. In the proposed design, the finite element method with a perfectly matched layer absorbing boundary condition is used. At 1.8 µm wavelength with 0.6 fill fraction, the maximum negative dispersion of − 922.5 p s / ( n m . k m ) is observed for CPCF when the background material is SF10. In addition, at this particular wavelength, the confinement loss is observed to be very small. Moreover, − 560.12 p s / ( n m . k m ) dispersion is found for the similar condition at 1.55 µm wavelength. On the other hand, using BK7 as the background material, − 706.77 p s / ( n m . k m ) dispersion is found at 1.55 µm wavelength for CPCF. Results also imply that CPCF shows better performance than OPCF for a wide wavelength range. Furthermore, at 1.55 µm wavelength, silica-based glass exhibits maximum dispersion, whereas increasing wavelength flint type glass shows the similar result. Analyzing different guiding properties of PCFs has significant impact on broadband dispersion compensation applications, especially using SF10.
Publisher: OMICS Publishing Group
Date: 2018
Publisher: Springer Science and Business Media LLC
Date: 15-02-2019
Publisher: Bentham Science Publishers Ltd.
Date: 08-2021
DOI: 10.2174/2210681210999200728120727
Abstract: Cyanide is an immensely poisonous chemical that is exceedingly noxious to the human body. Considering this issue, we present a Rectangular core photonic crystal fiber (RPCF) to detect the cyanide. Zeonex is chosen as base material and the investigation is accomplished in the terahertz (THz) frequency region. The RPCF model proffers high sensitivity, enlarged effective area, and insignificant confinement loss. It is very worthy to note that the proposed model structure can be fabricated by applying the existing fabrication techniques.
Publisher: IEEE
Date: 12-2017
Publisher: IEEE
Date: 12-2017
Publisher: MDPI AG
Date: 17-04-2018
DOI: 10.3390/CRYST8040171
Publisher: Springer Science and Business Media LLC
Date: 12-05-2019
Publisher: IEEE
Date: 03-2018
Publisher: Elsevier BV
Date: 2020
Publisher: Trans Tech Publications, Ltd.
Date: 02-2019
DOI: 10.4028/WWW.SCIENTIFIC.NET/JBBBE.40.41
Abstract: In the simplest words, a bio-sensor is an analytic device. In recent years, bio-sensors have shown emerging contribution in medical diagnosis, drug discovery, and treatment process. In this regards, continuous research is ongoing and many more features are being added in the sensing technologies. Optical sensing technology is no more bound in research area but also in the commercial use for the betterment of mankind. There are different types of bio-sensors particularly optical which have already been developed and research is going to expand many more of them. Sensing applications are not limited in glucose, DNA, cancer cell detection, drug discovery, immunological, Hepatitis B virus, and enzyme detection but also many more development is knocking at the door. Therefore, this review paper is focused on the applications and functions of bio-sensors (especially optical) in medical diagnostics and treatment.
Publisher: IEEE
Date: 09-2018
Publisher: IEEE
Date: 07-2018
No related grants have been discovered for Himadri Shekhar Mondal.