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Optics, Nanostructures and Quantum Fluids Laboratory                         

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 Patents

Three dimensional plasmonic substrates for sensing applications

Ambarish Ghosh and Haobijam Johnson Singh, (2012), # 1979/CHE/2012

 

Magnetic Nanostructured Propellers

Peer Fischer and Ambarish Ghosh, (2010), US Provisional Application 13098126


Circular birefringence refractometer: method and apparatus for measuring optical activity

Peer Fischer and Ambarish Ghosh, (2007), PCT/US2007/072248


       Publications

 


Wafer scale fabrication of porous three dimensional plasmonic metamaterials for the visible: chiral and beyond, Haobijam Johnson Singh, Greshma Nair, Arijit Ghosh and Ambarish Ghosh, accepted in Nanoscale, 2013 (DOI:10.1039/C3NR02666C)

Analytical theory and stability analysis of an elongated nanoscale object under external torque, Arijit Ghosh, Pranay Mandal, Suman Karmakar, and Ambarish Ghosh, Published in Physical Chemistry Chemical Physics, 2013 (DOI:10.1039/C3CP50701G)

Study of the formation of a connected network of colloidal particles, Pooyath Lekshmy Venugopalan, Gaurav Gupta, Arijit Ghosh, Haobijam Johnson Singh, Greshma Nair, and Ambarish Ghosh, International Journal of Polymeric Materials and Polymeric Biomaterials 62, no. 9, 499-501, 2013

Surface instability and possible generation of multielectron bubbles under pulsed electric fields, Vaisakh Vadakkumbatt, Emil M. Joseph, Anustuv Pal & Ambarish Ghosh, Journal of Low Temperature Physics, 171, 239-244, 2013.

Optical Properties of 1P State Electron Bubbles in Liquid Helium-4, Ambarish Ghosh, and Humphrey J. Maris, Journal of Physics: Conference Series, vol. 400, no. 1, p. 012011, IOP Publishing, 2012.

Porous three dimensional arrays of Plasmonic Nanoparticles, Haobijam Johnson Singh and Ambarish Ghosh, Journal of Physical Chemistry C, 116 (36), 19467-19471, 2012

Angular amplification by a diffraction grating for chiro-optical measurements, Rajitha P. Rajan and Ambarish Ghosh, Applied Optics, 51 (27), 6480-6483, 2012.

Dynamical Configurations and Bistability of Helical Nanostructures under External Torque, A. Ghosh, D. Paria, H. J. Singh, P. L. Venugopalan and Ambarish Ghosh, Physical Review E, 86, 031401, 2012.

Enhancement of circular differential deflection of light in an optically active medium, Rajitha P. Rajan and Ambarish Ghosh, Optics Letters, 37 (7), 1232-1234 (2012)

Magnetically actuated propulsion at low Reynolds numbers: towards nanoscale control, P. Fischer and A. Ghosh, Nanoscale 3 (2), 557 (2011).

Nanostructured Plasmonic Surfaces for Surface Enhanced Raman Scattering of Bacteria, Peer Fischer, Ambarish Ghosh, W. Ranjith Premasiri, Lawrence D.  Ziegler, XXII International Conference on Raman Spectroscopy. AIP Conference Proceedings, Volume 1267, pp. 994-995 (2010).

Controlled Propulsion of Artificial Magnetic Nanostructured Propellers, Ambarish Ghosh, and Peer Fischer, Nano Letters 9 (6), 2243 (2009).

Voltage controllable magnetic composite based on multifunctional polyethylene microparticles, A. Ghosh, N. K. Sheridon, and P. Fischer, Small 4 (11), 1956-1958 (2008)

Observation of the Faraday effect via beam deflection in a longitudinal magnetic field, Ambarish Ghosh, Winfield Hill, and Peer Fischer, Phys. Rev. A 76, 055402 (2007)

Circular differential double diffraction in chiral media

Ambarish Ghosh, Furqan M. Fazal, and Peer Fischer, Opt. Lett. 32, 1836 (2007)

Chiral Molecules Split Light: Reflection and Refraction in a Chiral Liquid

Ambarish Ghosh and Peer Fischer, Phys. Rev. Lett. 97, 173002 (2006)

Observation of a New Type of Negative Ion in Superfluid Helium

Ambarish Ghosh and Humphrey J. Maris, AIP Conf. Proc. 850, 155 (2006)

Charge Transport in Liquid Helium at Low Temperatures

B. Sethumadhavan, W. Yao, H. Eguchi, A. Ghosh, Y. H. Huang, Y. H. Kim, R. E. Lanou, H. J. Maris, A. N. Mocharnuk-Macchia, and G. M. Seidel, AIP Conf. Proc. 850, 159 (2006)

Observation of a New Type of Electron Bubble in Superfluid Helium

Ambarish Ghosh and Humphrey J. Maris, Phys. Rev. Lett. 95, 265301 (2005)

Measurement of the lifetime of excited-state electron bubbles in superfluid helium

Ambarish Ghosh and Humphrey J. Maris, Phys. Rev. B 72, 054512 (2005)

Cavitation in superfluid helium possibly arising from penning ionization of dimers

Ambarish Ghosh and Humphrey Maris, Journal of Low Temperature Physics, 134, 251 (2004)

Experiments to study the effect of light on electron bubbles in liquid helium

H.J. Maris, A. Ghosh, D. Konstantinov, and M. Hirsch, Journal of Low Temperature Physics, 134, 227 (2004)