Dr. Krishna Chaitanya Vishnubhatla Profile

Dr. Krishna Chaitanya Vishnubhatla

at Politecnico di Milano

SPIE Involvement:

Author

Publications (9)

SPIE Journal Paper | 2 September 2016

Highly integrated lab-on-a-chip for fluorescence detection

Surya S. Guduru, Francesco Scotognella, Alessandro Chiasera, Valligatla Sreeramulu, Luigino Criante, Krishna Chaitanya Vishnubhatla, Maurizio Ferrari, Roberta Ramponi, Guglielmo Lanzani, Rebeca Martínez Vázquez

OE, Vol. 55, Issue 09, 097102, (September 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.9.097102

KEYWORDS: Mirrors, Microfluidics, Lab on a chip, Fluorescence spectroscopy, Optical filters, Luminescence, Fresnel lenses, Femtosecond phenomena, Silica, Microscopes

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SPIE Journal Paper | 4 February 2014

Waveguide arrays for light harvesting in microfluidic chips

Surya Guduru, Petra Paiè, Serena Bolis, Roberto Osellame, Roberta Ramponi, Tersilla Virgili, Krishna Vishnubhatla

OE, Vol. 53, Issue 07, 071811, (February 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.7.071811

KEYWORDS: Waveguides, Light harvesting, Microfluidics, Refractive index, Micromachining, Glasses, Fabrication, CCD cameras, Optical engineering, Etching

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SPIE Journal Paper | 27 January 2014

Fresnel lenses fabricated by femtosecond laser micromachining on polymer one-dimensional photonic crystal

Surya Guduru, Francesco Scotognella, Luigino Criante, Rebeca Martinez Vazquez, Roberta Ramponi, Krishna Vishnubhatla

OE, Vol. 53, Issue 07, 071813, (January 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.7.071813

KEYWORDS: Polymers, Photonic crystals, Fresnel lenses, Refractive index, Femtosecond laser micromachining, Lenses, Photorefractive polymers, Optical filters, Multilayers, Light harvesting

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Proceedings Article | 15 February 2012 Paper

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

Krishna Chaitanya Vishnubhatla, Roberto Osellame, Giulio Cerullo, Francesca Serra, Roberto Cerbino, Marco Buscaglia, Tommaso Bellini

Proceedings Volume 8249, 82490B (2012) https://doi.org/10.1117/12.908462

KEYWORDS: Liquid crystals, Femtosecond laser micromachining, Microfluidics, Etching, Polarizers, Glasses, Prototyping, Femtosecond phenomena, Fabrication, Capillaries

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Proceedings Article | 1 March 2010 Paper

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

N. Bellini, F. Bragheri, K. Vishnubhatla, L. Ferrara, P. Minzioni, G. Cerullo, R. Ramponi, I. Cristiani, R. Osellame

Proceedings Volume 7589, 75890D (2010) https://doi.org/10.1117/12.842137

KEYWORDS: Waveguides, Optical tweezers, Microfluidics, Microscopes, Femtosecond laser micromachining, Silica, Biomedical optics, Glasses, Blood, Information operations

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Proceedings Article | 24 February 2010 Paper

Organic random laser in an optofluidic chip fabricated by femtosecond laser

Krishna Chaitanya Vishnubhatla, Roberto Osellame, Guglielmo Lanzani, Roberta Ramponi, Tersilla Virgili

Proceedings Volume 7585, 75850E (2010) https://doi.org/10.1117/12.842080

KEYWORDS: Random lasers, Nanoparticles, Femtosecond phenomena, Microfluidics, Waveguides, Polymers, Glasses, Laser applications, Photonic devices, Ultrafast phenomena

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Proceedings Article | 13 March 2008 Paper

Inscription and characterization of micro-structures in silicate, Foturan and tellurite glasses by femtosecond laser direct writing

K. Vishnubhatla, S. Venugopal Rao, R. Sai Santosh Kumar, K. Shiva Prasad, P. S. R. Prasad, D. Narayana Rao

Proceedings Volume 6881, 688113 (2008) https://doi.org/10.1117/12.762907

KEYWORDS: Glasses, Silica, Femtosecond phenomena, Diffraction gratings, Diffraction, Refractive index, Waveguides, Confocal microscopy, Absorption, Luminescence

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Proceedings Article | 13 March 2008 Paper

Micro-Raman mapping of micro-gratings in Baccarat glass directly written using femtosecond laser

K. Vishnubhatla, S. Venugopal Rao, R. Sai Santosh Kumar, S. N. B. Bhaktha, A. Chiappini, A. Chiasera, J. Laureyns, M. Ferrari, M. Mattarelli, M. Montagna, R. Osellame, R. Ramponi, G. Righini, S. Turrell, D. Narayana Rao

Proceedings Volume 6881, 688114 (2008) https://doi.org/10.1117/12.762707

KEYWORDS: Glasses, Waveguides, Femtosecond phenomena, Micro raman spectroscopy, Microscopes, Refractive index, Diffraction gratings, Raman spectroscopy, Spectroscopy, Confocal microscopy

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Proceedings Article | 20 April 2006 Paper

Er³⁺/Yb³⁺ activated silica-hafnia planar waveguides for photonics fabricated by rf-sputtering

A. Chiasera, S. N. B. Bhaktha, M. Brenci, A. Chiappini, M. Ferrari, V. Foglietti, R. Gonçalves, Y. Jestin, A. Minotti, M. Montagna, E. Moser, S. Pelli, G. Righini, C. Tosello, K. Vishnubhatla

Proceedings Volume 6183, 61830O (2006) https://doi.org/10.1117/12.664564

KEYWORDS: Erbium, Ytterbium, Waveguides, Ions, Planar waveguides, Hybrid fiber optics, Raman spectroscopy, Luminescence, Silica, Spectroscopy

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Showing 5 of 9 publications

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