en Investigating the effects of temperature on the collision frequency and dispersion in the thermal sensors based on the waveguide with composite cladding تخصصی Special پژوهشي Research <p><span style="line-height: 20.8px;">The purpose of this is article is to design the thermal sensors using Plasmon effects in the waveguide with composite crust. Therefore, the effects of temperature in optical constants of metal nano-particles were first investigated and used the Mid-range theory model to investigate the thermal features of composite. It is also shown how the waveguides with composite crust and the pure dielectric core can be utilized as the thermal sensor. Also, by the constant density of the metal nano-particles in the crust, the increase in the temperature leads to the changes in the Plasmon and collision frequencies and dispersion. The simulation results of the waveguide with composite crust reveal that the composite waveguide with higher density leads to better imprisonment of mode and shows the thermal effects extraordinarily.&nbsp;</span></p> <p><span style="line-height: 20.8px;">The purpose of this is article is to design the thermal sensors using Plasmon effects in the waveguide with composite crust. Therefore, the effects of temperature in optical constants of metal nano-particles were first investigated and used the Mid-range theory model to investigate the thermal features of composite. It is also shown how the waveguides with composite crust and the pure dielectric core can be utilized as the thermal sensor. Also, by the constant density of the metal nano-particles in the crust, the increase in the temperature leads to the changes in the Plasmon and collision frequencies and dispersion. The simulation results of the waveguide with composite crust reveal that the composite waveguide with higher density leads to better imprisonment of mode and shows the thermal effects extraordinarily.&nbsp;</span></p> Composite waveguide, collision frequency, dispersion, thermal sensor, modal analysis Composite waveguide, collision frequency, dispersion, thermal sensor, modal analysis 958 961 http://opsi.ir/browse.php?a_code=A-10-1-1088&slc_lang=en&sid=1 maryam seyyedi maryam seyyedi maryamseyyedi87@gmail.com 10031947532846004726 10031947532846004726 Yes Aras International Campus, University of Tabriz Aras International Campus, University of Tabriz yadallah mirzaei yadallah mirzaei y.mirzaei91@ms.tabrizu.ac.ir 10031947532846004727 10031947532846004727 No university of Tabriz university of Tabriz tohid abedi jeiran tohid abedi jeiran abedi_its@yahoo.co.uk 10031947532846004728 10031947532846004728 No Islamic Azad University of Fasa Islamic Azad University of Fasa Ali Rostami Ali Rostami Rostami@tabrizu.ac.ir 10031947532846004729 10031947532846004729 No university of Tabriz university of Tabriz ghassem Rostami ghassem Rostami gh.rostami@tabrizu.ac.ir 10031947532846004730 10031947532846004730 No university of Tabriz university of Tabriz