en Investigating the effects of temperature on propagation, penetration and distribution field in thermal sensor based on composite cladding تخصصی Special پژوهشي Research <p><span style="line-height: 20.8px;">This study investigated the effect of temperature in the waveguide with composite cladding and revealed that not only the temperature increase in composite cladding with pure dielectric core can make changes in the optical constants of metal nano-particles, but also it can change the penetration depth, propagation length, distribution field and the intensity of propagated light. The results of simulation showed that the propagation length, the intensity of propagation light and penetration depth will decrease by the increase in the temperature. Also, the distribution field showed significant changes. By the modal analysis of the waveguide with composite cladding, it was proved that the fundamental mode experience the highest thermal changes compared to the first and higher order modes in the propagation features. It is noteworthy that simulation has been conducted by MATLAB software.</span></p> <p><span style="line-height: 20.8px;">This study investigated the effect of temperature in the waveguide with composite cladding and revealed that not only the temperature increase in composite cladding with pure dielectric core can make changes in the optical constants of metal nano-particles, but also it can change the penetration depth, propagation length, distribution field and the intensity of propagated light. The results of simulation showed that the propagation length, the intensity of propagation light and penetration depth will decrease by the increase in the temperature. Also, the distribution field showed significant changes. By the modal analysis of the waveguide with composite cladding, it was proved that the fundamental mode experience the highest thermal changes compared to the first and higher order modes in the propagation features. It is noteworthy that simulation has been conducted by MATLAB software.</span></p> Composite waveguide, penetration depth, thermal sensor, modal analysis, propagation length Composite waveguide, penetration depth, thermal sensor, modal analysis, propagation length 962 965 http://opsi.ir/browse.php?a_code=A-10-1-1090&slc_lang=en&sid=1 yadallah mirzaei yadallah mirzaei y.mirzaei91@ms.tabrizu.ac.ir 10031947532846004735 10031947532846004735 No university of Tabriz university of Tabriz maryam seyyedi Maryam seyyedi maryamseyyedi87@gmail.com 10031947532846004736 10031947532846004736 Yes Aras International Campus, University of Tabriz, Aras International Campus, University of Tabriz, tohid abedi jeryan tohid abedi jeryan abedi_its@yahoo.co.uk 10031947532846004737 10031947532846004737 No Islamic Azad University of Fasa, Islamic Azad University of Fasa, ali rostami ali rostami Rostami@tabrizu.ac.ir 10031947532846004738 10031947532846004738 No university of Tabriz university of Tabriz ghassem rostami ghassem rostami gh.rostami@tabrizu.ac.ir 10031947532846004739 10031947532846004739 No university of Tabriz university of Tabriz