Determination of Optical Properties of Olive Oil Mixed with Black Seed Oil at Different Volume Using UV/VIS Spectrometer
Nafisa Badr Eldeen,
Abu Bakr Abd El-karim Salman,
Abdelnabi Ali Elamin,
Mona Ali,
Khalid Mohammed Haroun
Issue:
Volume 9, Issue 4, December 2021
Pages:
51-54
Received:
10 July 2021
Accepted:
6 December 2021
Published:
10 December 2021
Abstract: Optical properties have many important industrial and scientific applications including heat transfer, contactless temperature measurement, laser technology, optics (mirrors, optical lenses and windows), energy, construction, photovoltaic industries, aerospace and many more. This paper aims to study the optical properties of olive oil when mixed with black seed oil at different quantities (0.5, 1, 1.5, and 2) ml, olive oil was obtained from the market and black seed oil was prepared by using a cold-pressing method. The optical properties were characterized using UV/VIS spectrometer, the result display that the increase in black seed oil volume has a small effect on absorption and absorption coefficient but the effect appears as a redshift in wavelength when compared to the reference sample. The reflection, refractive index, and optical conductivity have a constant value which was 0.2 a.u, 2.8, and 1.44×1010 sec-1 respectively. Finally, the optical power band gap of olive oil decreased from 3.33V to 2.60V when black seed oil volume increased. This work will open the door wide for the use of olive oil mixed with black seed oil in various fields of solar cells.
Abstract: Optical properties have many important industrial and scientific applications including heat transfer, contactless temperature measurement, laser technology, optics (mirrors, optical lenses and windows), energy, construction, photovoltaic industries, aerospace and many more. This paper aims to study the optical properties of olive oil when mixed wi...
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Scattering of Perfect Optical Vortex Beams: Physical Unclonable Function
Bikash Kumar Das,
Patnala Vanitha,
Salla Gangi Reddy,
R. P. Singh
Issue:
Volume 9, Issue 4, December 2021
Pages:
55-58
Received:
25 October 2021
Accepted:
16 November 2021
Published:
29 December 2021
Abstract: Now-a-days, data security has become an important part for anyone connected to the web. Data security ensures that data is getting transmitted securely without any modifications or alterations to the intended receiver. To achieve data security, we have focused on the cryptography which helps to protect our information from being stolen or third-party attacks. Encryption techniques demonstrate an excellent deal of data security when implemented in an optical system such as Holography due to the inherent physical properties of light and the precision it demands. Such systems are somehow vulnerable during their digital implementation under various attacks called crypt-analysis due to the predictable nature of security keys used for the encryption. In this work, we are presenting a Physically Unclonable Functions (PUFs) for producing a robust (stable over time) security key for digital encryption systems. More specifically, we have used the correlation functions of scattered perfect optical vortex beams for the generation of keys which can be used for encryption of data. Here, we convert the 2-D correlation function to 1-D key and digitize based on the average value which will be the random sequence of 1s and 0s. In the best of our knowledge, we are reporting this work for the first time. The experiment and simulation results are well matched.
Abstract: Now-a-days, data security has become an important part for anyone connected to the web. Data security ensures that data is getting transmitted securely without any modifications or alterations to the intended receiver. To achieve data security, we have focused on the cryptography which helps to protect our information from being stolen or third-par...
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