1
Optics and Laser group, ,Faculty of physics, university of Tabriz, Tabriz, Iran
2
Optics and Laser Group, Faculty of Physics, University of Tabriz, Tabriz, Iran
چکیده
We design a toothed plasmonic waveguide sensor with a monolayer MoS₂ located at the metal–dielectric interface and compare its sensing performance with graphene under the same conditions. We optimize the rectangular-tooth dimensions to enhance the interaction between the confined plasmonic field and the surrounding sensing medium. The optimized structure achieves a maximum refractive-index sensitivity of 896 nm/RIU for a tooth size of 80 nm × 50 nm over an RI range of 1.33–1.40. We further evaluate the sensing performance using the refractive indices of healthy tissue, basal cell, and melanoma samples. The transmission spectra show distinct resonance shifts for the different biological samples, demonstrating the sensor's ability to distinguish small refractive-index variations. The basal cell sample achieves a maximum sensitivity of 880 nm/RIU. The comparative analysis shows that MoS₂ provides higher sensitivity than graphene in the proposed configuration and enhances the optical response of the plasmonic waveguide. These results indicate that the proposed sensor offers a compact and highly sensitive platform for refractive-index-based biomedical detection.
Lotfi، Fariba و Kheradmand، Reza. (1405). MoS2-Enhanced Toothed Plasmonic Waveguide Sensor for High-Sensitivity Biosensing. پژوهش های کاربردی در اپتیک و تکنولوژی لیزر، 1(1)، 55–71.
MLA
Lotfi، Fariba، و Kheradmand، Reza. "MoS2-Enhanced Toothed Plasmonic Waveguide Sensor for High-Sensitivity Biosensing"، پژوهش های کاربردی در اپتیک و تکنولوژی لیزر، 1، 1، 1405، 55–71.
HARVARD
Lotfi، Fariba، و Kheradmand، Reza. (1405). 'MoS2-Enhanced Toothed Plasmonic Waveguide Sensor for High-Sensitivity Biosensing'، پژوهش های کاربردی در اپتیک و تکنولوژی لیزر، 1(1), pp. 55–71.
CHICAGO
Lotfi، Fariba و Kheradmand، Reza، "MoS2-Enhanced Toothed Plasmonic Waveguide Sensor for High-Sensitivity Biosensing." پژوهش های کاربردی در اپتیک و تکنولوژی لیزر، 1 1 (1405): 55–71,
VANCOUVER
Lotfi Fariba، Kheradmand Reza. MoS2-Enhanced Toothed Plasmonic Waveguide Sensor for High-Sensitivity Biosensing. پژوهش های کاربردی در اپتیک و تکنولوژی لیزر. 1405;1(1):55–71.
پژوهش های کاربردی در اپتیک و تکنولوژی لیزر