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Our new paper in journal of Magnetism and magnetic materials

Congratulations to our new paper “Bi:YIG@Au Magneto-Plasmonic Core-Shell Nano-Grating with Robust, High Magneto-Optical Figure of Merit” by Somayeh Sadeghi, Seyedeh Mehri Hamidi We numerically examine the role of Fano resonance for enhanced magneto-optical effect in an arrayed magneto-plasmonic core-shell structure composed of Bi:YIG cores as a magneto-optical active medium and Au sells as plasmonic ones.Read More…

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Our new paper in journal of Optical Materials

Congratulations to our new paper  ” One dimensional photonic crystal as an efficient tool for in-vivo optical sensing of neural activity ” by Foozieh Sohrabia, Seyedeh Mehri Hamidia,*, Nasrin Asgaria, Mohammad Ali Ansari, Roya Gachilooa In this paper, we recorded optically the neural/neuromuscular activity of alive worm via phase-sensitive measurement while stimulating it optically usingRead More…

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Our new paper in journal of optical and quantum electronics

Congratulations to our new paper “Bio-compatible and highly sensitive two-dimensional plasmonic sensor ” by A.S. Nasiri, S. M. Hamidi We propose a novel bio-compatible two dimensional plasmonic sensor with array of ring and the hole structure on an optically thick gold film for biochemical sensing. We use finite-difference time-domain simulation for design and calculation ofRead More…

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Our new paper in Journal of Physics D: Applied Physics

Congratulations to our new paper ” Electrically driven flexible two dimensional plasmonic structure based on nematic liquid crystal ” by Hossein Mbarak, Seyedeh Mehri Hamidi, Ezeddin Mohajerani and Z Zattar A novel two dimensional active plasmonic grating based on liquid crystal (LC) infiltration is demonstrated by combining the plasmonic properties of the gold nanostructure and the optical properties ofRead More…

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Enhanced on-chip terahertz sensing with hybrid metasurface/lithium niobate structures

Recognizing special molecules is crucial in many biochemical processes, and thus, highly enhanced sensing methods are in high demand. In this work, we designed a microrod array metasurface with a SiO2-loaded subwavelength lithium niobate waveguide as a unique platform for enhanced experimental fingerprint detection of lactose. The metasurface could lead to strong surface wave modesRead More…

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Our new paper in journal of optical and quantum electronics

Congratulations to our new paper “Role of higher order plasmonic modes in one-dimensional nanogratings ” by Foozieh Sohrabi, Seyedeh Mehri Hamidi, Ershad Mohammadi By theoretically investigating the optical behavior of one-dimensional gold nanogratings using Fourier Modal Method, we have shown that both integer and non-integer multiples of surface plasmon polariton wavelengths should be taken intoRead More…

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Researchers design superhydrophobic ‘nanoflower’ for biomedical applications

Plant leaves have a natural superpower—they’re designed with water repelling characteristics. Called a superhydrophobic surface, this trait allows leaves to cleanse themselves from dust particles. Inspired by such natural designs, a team of researchers at Texas A&M University has developed an innovative way to control the hydrophobicity of a surface to benefit to the biomedicalRead More…

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Our new paper in international journal of optics and photonics

Congratulations to our new paper “Adjustable plasmonic bandgap in one-dimensional nanograting based on localized and propagating surface plasmons” by Foozieh Sohrabi and Seyedeh Mehri Hamidi. Compared to the long history of plasmonic gratings, there are only a few studies regarding the bandgap in the propagation of plasmonic surface waves. Considering the previous studies on interpretationRead More…

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Light-Emitting Plexciton: Exploiting Plasmon-Exciton Interaction in the Intermediate Coupling Regime

The interaction between plasmons in metal nanostructures and excitons in layered materials attracts recent interests due to its fascinating properties inherited from the two constituents, e.g., the high tunability on its spectral or spatial properties from the plasmonic component, and the large optical nonlinearity or light emitting properties from the excitonic counterpart. Here, we demonstrateRead More…

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Femtosecond Light Transmission and Subradiant Damping in Plasmonic Crystal

They report the first observation of subradiance in plasmonic nanocrystals. Amplitude- and phaseresolved ultrafast transmission experiments directly reveal the coherent coupling between surface plasmon polaritons (SPPs) induced by periodic variations in the dielectric function. This interaction results in the formation of plasmonic band gaps and coupled SPP eigenmodes with different symmetries, as directly shown byRead More…

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