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JTAP-01.10.2023

Journal of Theoretical and Applied Physics (JTAP)

Editor-in-Chief: Davoud Dorranian, PhD

Online ISSN: 2251-7235

Print ISSN: 2251-7227

Publishes Bimonthly

Original Article
Application and study of silver nanoparticles as antidiabetic agent and the role of LED (light emitting diode) or laser at the range (395 – 450) nm on the activity of the drugs

Considerable research has been carried out on diabetes mellitus (DM) and many materials have been used to treat the disease. Silver nanoparticles (AgNPs) have been used in many fields in medicine, and have been utilised in the treatment of DM in vivo successfully. In this paper, AgNPs were synthesized using a green method and used […]

Terahertz emission during laser-plasma interaction: effect of electron temperature and collisions

AbstractThe electron-neutral collisions in the plasma become crucial with regard to the generation of THz radiation when thermal motion of the electrons is considerable. If we look at the mechanism of THz emission, this is only the movement/oscillations of the electrons which is responsible for the excitation of nonlinear current that generated the THz radiation. […]

Determination of elastic constants of Inconel-625 superalloy, using laser-based ultrasonic

AbstractThis paper deals with the determination of the elastic constants of Inconel-625 from the analysis of laser-generated ultrasonic bulk waves. A pulsed Nd/YAG laser (1064 nm) is used for ultrasonic generation in a thick stepped Inconel-625 sample, and a He–Ne laser is used for heterodyne detection of the laser-generated signals. Ultrasonic signals obtained at epicenter and […]

Negative and positive dust grain effect on the modulation instability of an intense laser propagating in a hot magnetoplasma

AbstractThe modulation instability of intense circularly polarized laser beam in hot magnetized dusty plasma is studied. A nonlinear equation describing the interaction of laser with dusty plasma in the quasi-neutral approximation is derived. The effect of negative and positive dust grains on the laser modulation growth rate is studied. It is shown that the existence […]

Glass surface modification using Nd:YAG laser in SF6 atmospheres

AbstractGlass surface modification is one of the processes which changes its physical properties. Changing optical property is a significant effect of surface modification. Among the surface modification methods, laser surface modification is attractive for researchers. Here, SiO2 glass target was irradiated by Q-switched Nd:YAG laser (1064 nm) in SF6 atmospheres as well as vacuum. In this […]