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Our New paper in Nano-strcture & Nano objects

Voltage Controlled Properties of Piezo-Magneto-Plasmonic Core/shell Nanoparticles A. K. Kodeary, S. M. Hamidi, R. Moradlou The present experimental study aimed to synthesize and evaluate the magneto-plasmonic and piezophotonic properties of Cobalt-based nanoparticles to introduce a new type of core/shell nanoparticles usable in biomedicine and optical applications. For these core/shell nanoparticles, Lead Zirconate Titanate (PbZrTiO3) andRead More…

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Nanosecond mid-infrared pulse generation via modulated thermal emissivity

Xiao et al. demonstrate the generation of nanosecond mid-infrared pulses via fast modulation of thermal emissivity enabled by the absorption of visible pump pulses in unpatterned silicon and gallium arsenide. The free-carrier dynamics in these materials result in nanosecond-scale modulation of thermal emissivity, which leads to nanosecond pulsed thermal emission. To their knowledge, the nanosecondRead More…

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Synthetic chiral light for efficient control of chiral light–matter interaction

Light is a very powerful and precise tool, allowing us to control, shape and create new phases of matter. In such tasks, the magnetic component of a light wave is essential in defining the wave’s helicity, but it influences the optical response of matter only weakly. Chiral molecules offer a typical example, in which theRead More…

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Spintronic GdFe/Pt THz emitters

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Congratulation to our new paper in Applied Physics A

Footprint of Plexcitonic States in Low Power Green Blue Plasmonic Random Laser S. F. Haddawi, M. Mirahmadi, H. Mbarak, A.K. Kodeary, M. Ghasemi, S. M. hamidi . Green – blue plasmonic random laser is attained by two dimensional plexcitonic structure. The main gain plexcitonic media contained two dimensional periodic arrays of Gold nanowires which isRead More…

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Our new paper in “Optical and quantum electronics”

Congratulations to our new paper “A design procedure for fan-out improvement in all-optical photonic crystal logic design” by Hojjat Sharifi, Seyyedeh Mehri Hamidi and Keivan Navi In this paper, a general method is proposed to improve the fan-out parameter for all-optical logic gates and functions. Two different types of devices are designed to increase theRead More…

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Light-Activated Biohybrid Bots Drive Muscle Activity Through Nerve Cells

Researchers from the University of Illinois at Urbana-Champaign have developed soft, microscopic, swimming biohybrid robots powered by skeletal muscle tissue that is stimulated by onboard motor neurons. The neurons have optogenetic properties — upon exposure to light, they fire to actuate the muscle tissue. The body of the biohybrid swimmer consists of a free-standing softRead More…

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Congratulations for the winning of “Research Thesis Award of Khayyam Festival” by Foozieh Sohrabi

Khayyam Festival is one of the high-prestigious national festival in which selection of the top thesis and dissertations takes place. We are happy to announce the winning of this award by our doctoral graduate, Dr. Foozieh Sohrabi in the Second National Festival on Research Thesis “Khayyam Award”.

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Biomaterial from Bacteria Shows Promise for Range of Photonic Applications

Nonlinear optical measurements of the material showed strong saturable absorption and nonlinear optical extinctions induced by Mie scattering over broad temporal and wavelength ranges. Through comparative studies in thermal-optic switching, the researchers demonstrated that the biomaterial tellurium (Bio-Te) provided definite improvements in the thermal-optic decaying lifetime compared to the materials WS2 and graphene. Professor Werner J.Read More…

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Antenna-coupled spintronic terahertz emitters driven by a 1550 nm femtosecond laser oscillator

We demonstrate antenna-coupled spintronic terahertz (THz) emitters excited by 1550 nm, 90 fs laser pulses. Antennas are employed to optimize THz outcoupling and frequency coverage of ferromagnetic/nonmagnetic metallic spintronic structures. We directly compare the antenna-coupled devices to those without antennas. Using a 200 lm H-dipole antenna and an ErAs:InGaAs photoconductive receiver, we obtain a 2.42-foldRead More…

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