Search Results - "Shivakiran Bhaktha, B.N."

Plasmonic-Silver Sorets and Dielectric-Nd2O3 nanorods for Ultrasensitive Photonic Crystal-Coupled Emission by Bhaskar, Seemesh, Das, Pratyusha, Srinivasan, Venkatesh, Bhaktha, Shivakiran B.N., Ramamurthy, Sai Sathish

“…•Synergistic coupling of hybrid metal-dielectric plasmons with Bloch Surface Waves.•Judicious integration of rod-shaped Nd2O3 ‘Huygen’ sources and plasmonic Ag…”
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Passive polarization splitter using zero-gap directional coupler in LiNbO3 by Sattibabu, Romala, Kumar Dey, Pradip, Shivakiran Bhaktha, B.N., Ganguly, Pranabendu

“…Low-crosstalk zero-gap directional coupler (ZDC) based TE-TM polarization splitter/combiner was designed at 1.55 µm transmitting wavelength using titanium…”
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Spatio-spectral mapping of a microbottle laser by Dutta, Subhajit, B.N., Shivakiran Bhaktha

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Mapping the geometry dependent relative stress in stretched polymer membranes by polarization and interferometric techniques by Mukherjee, Sarbojit, Pathak, Khanindra, Bhaktha, B.N. Shivakiran

“…This paper reports experimental results on contactless geometry dependent stress characterisation and mapping in elastic polymer membranes using polarization…”
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Temporal dynamics of photonic stop-band in volatile solvent infiltrated opals by Veeraghattam, Bhargavi, Guha, Prasanta Kumar, Bhaktha, B.N. Shivakiran

“…The effect of the infiltration of volatile solvents in photonic crystals is experimentally studied. Silica particles were synthesized and the opal structures…”
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Sensing of volatile organic compounds using one-dimensional photonic crystal Bloch surface waves and internal optical modes by Veeraghattam, Bhargavi, S., Sudha Maria Lis, Mukherjee, Sarbojit, Guha, Prasanta Kumar, Bhaktha, B.N. Shivakiran

“…•One-dimensional photonic crystals have been fabricated by sol–gel synthesis and dip-coating processing.•Detailed optical characterizations have been performed…”
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Inverse opal optical Tamm state for sensing applications by Mudi, Rina, Carpentiero, Alessandro, Bollani, Monica, Barozzi, Mario, Debnath, Kapil, Chiappini, Andrea, Bhaktha, B.N. Shivakiran

“…We report the excitation of optical Tamm states (OTS) in inverse opal (IO) - based three-dimensional photonic crystal on a flat metal substrate, validated…”
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Morphology dependent excitation of hybrid Tamm-bandedge state in metal coated opal three-dimensional photonic crystal by Mudi, Rina, Mallik, Samik, Veeraghattam, Bhargavi, Goswami, Dipak Kumar, Shivakiran Bhaktha, B.N., Debnath, Kapil

“…The optical Tamm state is a type of electromagnetic mode that exists at the interface between a periodic dielectric structure and a metal layer. While optical…”
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Femtosecond laser micromachined one-dimensional photonic crystal channel waveguides by Sudha Maria Lis, S., Rajasimha, K., Debnath, Kapil, Krishna Chaitanya, V., Bhaktha, B.N. Shivakiran

“…We present the sol-gel fabrication and characterization of SiO2–TiO2 one-dimensional photonic crystal (1DPhC) waveguides embedded with a low-index defect layer…”
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Negative Thermal Quenching and Size‐Dependent Optical Characteristics of Highly Luminescent Phosphorene Nanocrystals by Jana, Subhajit, Mukherjee, Subhrajit, Ghorai, Arup, Bhaktha, Shivakiran B. N., Ray, Samit Kumar

“…Highly luminescent and direct band gap black phosphorus (BP) nanocrystals (NCs) synthesized using a cost‐effective sonochemical exfoliation route are reported…”
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Optical field enhanced nonlinear absorption and optical limiting properties of 1-D dielectric photonic crystal with ZnO defect by Valligatla, Sreeramulu, Chiasera, Alessandro, Varas, Stefano, Das, Pratyusha, Shivakiran Bhaktha, B.N., Łukowiak, Anna, Scotognella, Francesco, Narayana Rao, D., Ramponi, Roberta, Righini, Giancarlo C., Ferrari, Maurizio

“…1-D photonic crystal, constituted by a ZnO defect layer inserted between two Bragg reflectors consisting of 21 alternating SiO2/TiO2 layers, fabricated by rf…”
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Fabrication of Rare Earth-Doped Transparent Glass Ceramic Optical Fibers by Modified Chemical Vapor Deposition by Blanc, Wilfried, Mauroy, Valérie, Nguyen, Luan, Shivakiran Bhaktha, B.N., Sebbah, Patrick, Pal, Bishnu P., Dussardier, Bernard

“…Rare earth (RE)‐doped silica‐based optical fibers with transparent glass ceramic (TGC) core was fabricated through the well‐known modified chemical vapor…”
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Heat-treatment controlled structural and optical properties of sol-gel fabricated Eu:ZnO thin films by Ghosh, Subhabrata, K., Uma Mahendra Kumar, Bhaktha, B.N. Shivakiran

“…We report on the fabrication of sol-gel derived Eu-doped ZnO films and the effects of heat-treatment on their structural and optical properties. X-ray…”
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Photoplasmonic assembly of dielectric-metal, Nd2O3-Gold soret nanointerfaces for dequenching the luminophore emission by Bhaskar, Seemesh, Das, Pratyusha, Moronshing, Maku, Rai, Aayush, Subramaniam, Chandramouli, Bhaktha, Shivakiran B. N., Ramamurthy, Sai Sathish

“…A variety of materials such as low dimensional carbon substrates (1D, 2D, and 3D), nanoprisms, nanocubes, proteins, ceramics, and DNA to name a few, have been…”
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Time-resolved photoluminescence studies in Eu-doped SiO 2 – HfO 2 – ZnO glass-ceramic waveguides by Ghosh, Subhabrata, Valligatla, Sreeramulu, Lukowiak, Anna, Chiasera, Alessandro, Ferrari, Maurizio, Shivakiran Bhaktha, B.N.

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Time-resolved photoluminescence studies in Eu-doped SiO2 – HfO2 – ZnO glass-ceramic waveguides by Ghosh, Subhabrata, Valligatla, Sreeramulu, Lukowiak, Anna, Chiasera, Alessandro, Ferrari, Maurizio, Shivakiran Bhaktha, B.N.

“…Fabrication of ZnO-HfO2 hybrid nanocrystals embedded 70 SiO2-(30−x) HfO2-xZnO (x=0, 2, 5, 7 and 10mol%) ternary glass-ceramic planar waveguides doped with…”
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Sol–Gel-Derived Glass-Ceramic Photorefractive Films for Photonic Structures by Lukowiak, Anna, Zur, Lidia, Tran, Thi, Meneghetti, Marcello, Berneschi, Simone, Nunzi Conti, Gualtiero, Pelli, Stefano, Trono, Cosimo, Bhaktha, B.N., Zonta, Daniele, Taccheo, Stefano, Righini, Giancarlo, Ferrari, Maurizio

“…Glass photonics are widespread, from everyday objects around us to high-tech specialized devices. Among different technologies, sol-gel synthesis allows for…”
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Self-assembled colloidal structures for photonics by Chiappini, A., Carpentiero, A., Bollani, M., Mudi, R., Squeo, B.M., Pasini, M., Pasquardini, L., Shivakiran Bhaktha, B.N., Debnath, K., Virgili, T.

“…In this work we present our consolidated results concerning self-assembled colloidal structures as photonic platforms for the development of lasers and optical…”
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Self-quenching of spontaneous emission in Sm3+ doped lead-borate glass by MANOJ KUMAR, G, SHIVAKIRAN BHAKTHA, B. N, NARAYANA RAO, D

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Self-quenching of spontaneous emission in Sm 3+ doped lead-borate glass by Manoj Kumar, G., Shivakiran Bhaktha, B.N., Narayana Rao, D.

“…The lifetimes of Sm 3+ doped in a binary glass are studied as a function of the complex refractive index of the glass. The local field effect has been taken…”
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