Výsledky vyhledávání - "K. C. Vishnubhatla"

Semi-transparent 3D microelectrodes buried in fused silica for photonics applications

Autor: Luigino Criante, K. C. Vishnubhatla, S. S. K. Guduru, Sadir Gabriele Bucella, Mario Caironi, Silvio Bonfadini

Publikováno v: Optics express. 29(17)

We report the realization of semi-transparent 3D microelectrodes fully embedded in a fused silica substrate by a combination of femtosecond laser microfabrication and inkjet printing. We also demonstrate the application of such electrodes in a proof-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55b039f684d2f07a2761bfaea0171d0d
https://pubmed.ncbi.nlm.nih.gov/34615136

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Femtosecond laser micromachining for optofluidic and energy applications

Autor: Roberto Osellame, Giorgio Nava, Roberta Ramponi, Sara Lo Turco, K. C. Vishnubhatla

Publikováno v: Optical materials (Amst., Print) 36 (2013): 102–105. doi:10.1016/j.optmat.2013.04.038
info:cnr-pdr/source/autori:Lo Turco, Sara; Nava, Giorgio; Osellame, Roberto; Vishnubhatla, Krishna Chaitanya; Ramponi, Roberta/titolo:Femtosecond laser micromachining for optofluidic and energy applications/doi:10.1016%2Fj.optmat.2013.04.038/rivista:Optical materials (Amst., Print)/anno:2013/pagina_da:102/pagina_a:105/intervallo_pagine:102–105/volume:36

Femtosecond laser micromachining is a powerful and versatile tool both for the fabrication of photonic and optofluidic devices and for material surface processing. The basics of the technique will be discussed and some examples of applications will b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdc580d2343f14edc0a07a0b08eb82d9
https://doi.org/10.1016/j.optmat.2013.04.038

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Optical studies of two dimensional gratings in fused silica, GE 124, and Foturan™ glasses fabricated using femtosecond laser pulses

Autor: R. Sai Santosh Kumar, Maurizio Ferrari, K. C. Vishnubhatla, D. Narayana Rao, S. Venugopal Rao

Publikováno v: Optics communications
(2009): 4537–4542. doi:10.1016/j.optcom.2009.08.041
info:cnr-pdr/source/autori:K.C. Vishnubhatla (1), S. Venugopal Rao (2), R. Sai Santosh Kumar (1), M. Ferrari (3), D. Narayana Rao (1)/titolo:Optical studies of two dimensional gratings in fused silica, GE 124, and FoturanTM glasses fabricated using femtosecond laser pulses/doi:10.1016%2Fj.optcom.2009.08.041/rivista:Optics communications (Print)/anno:2009/pagina_da:4537/pagina_a:4542/intervallo_pagine:4537–4542/volume

Herein we present results on the femtosecond laser direct writing and optical characterization studies of two dimensional gratings in fused silica, GE 124, and Foturan glasses. Varieties of structures were achieved with varying input energy and spati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e42ed3dcc0ac50bfb90d98b26f987900
https://doi.org/10.1016/j.optcom.2009.08.041

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Silver to erbium energy transfer in phosphate glasses

Autor: K. C. Vishnubhatla, Giancarlo C. Righini, Alessandro Chiasera, Giorgio Speranza, Massimo Brenci, G. Nunzi Conti, Maurizio Montagna, Maurizio Ferrari, Enrico Moser, Maurizio Mattarelli, Cristina Armellini

Publikováno v: Journal of non-crystalline solids 353 (2007): 498–501. doi:10.1016/j.jnoncrysol.2006.10.017
info:cnr-pdr/source/autori:M. Mattarelli, M. Montagna, E. Moser, K.C. Vishnubhatla, C. Armellini, A. Chiasera, M. Ferrari, G. Speranza, M. Brenci, G. Nunzi Conti, G.C. Righini/titolo:Silver to erbium energy transfer in phosphate glasses/doi:10.1016%2Fj.jnoncrysol.2006.10.017/rivista:Journal of non-crystalline solids/anno:2007/pagina_da:498/pagina_a:501/intervallo_pagine:498–501/volume:353

Silver and erbium co-doped sodium metaphosphate glasses were prepared by standard melt-quench technique. The samples underwent heat or 355 nm laser radiation exposure treatments in order to promote silver clustering. Absorption and photoluminescence

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8a8bf671d595dfc84810e65d65060df
https://doi.org/10.1016/j.jnoncrysol.2006.10.017

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Dual-beam optical trapping of cells in an optofluidic device fabricated by femtosecond lasers

Autor: K. C. Vishnubhatla, Giulio Cerullo, Roberto Osellame, Roberta Ramponi, Ilaria Cristiani, Nicola Bellini, Paolo Minzioni, Lorenzo Ferrara, Francesca Bragheri

Publikováno v: SPIE Photonics West, San Francisco, USA, 2010
info:cnr-pdr/source/autori:N. Bellini, F. Bragheri, K. C. Vishnubhatla, L. Ferrara, P. Minzioni, G. Cerullo, R. Ramponi, I. Cristiani, R. Osellame/congresso_nome:SPIE Photonics West/congresso_luogo:San Francisco, USA/congresso_data:2010/anno:2010/pagina_da:/pagina_a:/intervallo_pagine

We present design and optimization of an optofluidic monolithic chip, able to provide optical trapping and controlled stretching of single cells. The chip is fabricated in a fused silica glass substrate by femtosecond laser micromachining, which can

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42bbf22a4a79822032603653c48afef1
http://hdl.handle.net/11311/581759

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Waveguide arrays for light harvesting in microfluidic chips

Autor: K. C. Vishnubhatla, Surya S. K. Guduru, T. Virgili, Roberta Ramponi, Serena Bolis, Roberto Osellame, Petra Paiè

Publikováno v: Optical engineering (Bellingham, Print) 53 (2014). doi:10.1117/1.OE.53.7.071811
info:cnr-pdr/source/autori:Guduru, Surya. S. K.; Paie, Petra; Bolis, Serena; Osellame, Roberto; Ramponi, Roberta; Virgili, Tersilla; Vishnubhatla, Krishna Chaitanya/titolo:Waveguide arrays for light harvesting in microfluidic chips/doi:10.1117%2F1.OE.53.7.071811/rivista:Optical engineering (Bellingham, Print)/anno:2014/pagina_da:/pagina_a:/intervallo_pagine:/volume:53
Optical engineering, 53 (7
Optical engineering (Bellingham, Print) (2014).
info:cnr-pdr/source/autori:Surya SK Guduru, Petra Paiè, Serena Bolis, Roberto Osellame, Roberta Ramponi, Tersilla Virgili, Krishna Chaitanya Vishnubhatla/titolo:Waveguide arrays for light harvesting in microfluidic chips/doi:/rivista:Optical engineering (Bellingham, Print)/anno:2014/pagina_da:/pagina_a:/intervallo_pagine:/volume

We demonstrate a way of light harvesting in integrated microfluidic chips fabricated by femtosecond laser micromachining. The architecture consists of waveguide arrays fabricated in the vicinity of the microchannel filled with a fluorescent organic s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bb3c535fb5e630e1f02cc34a1a25eb4

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Pulsed Laser Deposition of Er3+-doped Oxyfluoride Thin Films

Autor: MARTINO, Maurizio, CARICATO, Anna Paola, A. FAZZI, F. ROMANO, V. K. TIKHOMIROV, A. B. SEDDON, M. MATTARELLI, A. CHIAPPINI, K. C. VISHNUBHATLA

Modern optical telecommunication requires materials having a broad emission band centered on 1.5 mu m to use as optical amplifier in WDM systems. Oxyfluoride glass demonstrate characteristics to satisfy this demand. Thin films of Er3+-doped oxyfluori

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4034::2c5d287673f9faa7d11663a03036edbf
https://hdl.handle.net/11587/108474

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Hybrid chemical etching of femtosecond irradiated 3D structures in fused silica glass

Autor: Roberto Osellame, Roberta Ramponi, Sara Lo Turco, K. C. Vishnubhatla

Publikováno v: MATEC Web of Conferences, Vol 8, p 05009 (2013)

We report on the fabrication of 3D micro-structures in fused silica glass using chemical etching along femtosecond laser irradiated zones. In particular, we exploited a novel approach combining two different etching agents in successive steps: the hy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d5d7d4e3126d14af8f336211c7f0e38
http://hdl.handle.net/11311/762841

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Effect of configuration of the microchannels fabricated by femtosecond laser micromachining on topological defects in confined liquid crystals

Autor: Marco Buscaglia, Tommaso Bellini, Francesca Serra, K. C. Vishnubhatla, Roberto Cerbino, Giulio Cerullo, Roberto Osellame

Publikováno v: Advanced Fabrication Technologies for Micro/Nano Optics and Photonics V.

The Femtosecond laser micromachining is a versatile tool for fabrication of microfluidic channel network; we exploit the fast prototyping capability of this technology to produce various channel configurations and study the alignment and topological

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1dfd4724f0bb5439789420a7dd68bdac
https://doi.org/10.1117/12.908462

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Single cell trapping and stretching in a femtosecond laser fabricated optofluidic chip

Autor: Ilaria Cristiani, Nicola Bellini, K. C. Vishnubhatla, Paolo Minzioni, Roberta Ramponi, Roberto Osellame, Lorenzo Ferrara, Francesca Bragheri

Publikováno v: International Workshop on BioPhotonics, Parma, Italy, 2011
info:cnr-pdr/source/autori:L. Ferrara, F. Bragheri, P. Minzioni, I. Cristiani, K.C. Vishnubhatla, N. Bellini, R. Ramponi, R. Osellame/congresso_nome:International Workshop on BioPhotonics/congresso_luogo:Parma, Italy/congresso_data:2011/anno:2011/pagina_da:/pagina_a:/intervallo_pagine

We present an optofluidic monolithic chip for the study of mechanical properties of single cells by means of optical forces. The chip is fabricated by femtosecond laser micromachining in a fused silica glass substrate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba64dc2433d93f59ef38f0a3fd56ac04
http://hdl.handle.net/11311/609374

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