Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Paul, Diptabrata"'
Non-equilibrium assembly, driven by fluxes controllable by continuous external energy inputs, enables dynamic and reconfigurable structures. Such controlled 3D assembly is desired for the design of adaptive materials that exploit structure-function r
Externí odkaz:
http://arxiv.org/abs/2412.10928
Regulation to a well-defined target state is a fundamental requirement for achieving reliable functionality in living systems and maintaining specific non-equilibrium states. The control of certain properties and functionalities of systems on the mic
Externí odkaz:
http://arxiv.org/abs/2412.10914
We experimentally demonstrate the emergence of directional rotation in thermally active-passive colloidal structures under optical confinement. The observed handedness of rotation of the structure can be controlled by changing the relative position o
Externí odkaz:
http://arxiv.org/abs/2309.12740
Autor:
Chowdhury, Tamaghna, Paul, Diptabrata, Nechiyil, Divya, A, Gokul M., Watanabe, Kenji, Taniguchi, Takashi, Kumar, G. V. Pavan, Rahman, Atikur
Publikováno v:
2D Materials, Volume 8, Number 4, 2021
Photoluminescence (PL) of transition metal dichalcogenide (TMD) monolayers is strongly influenced by the dielectric environment. The defect states present in the substrate induces uncontrollable doping in the TMD monolayer and thereby modifies the PL
Externí odkaz:
http://arxiv.org/abs/2209.11699
Optothermal interaction of active colloidal matter can facilitate environmental cues which can influence the dynamics of active soft matter systems. The optically induced thermal effect can be harnessed to study non-equilibrium thermodynamics as well
Externí odkaz:
http://arxiv.org/abs/2203.08904
In recent times the spin angular momentum (SAM) and orbital angular momentum (OAM) of light have gained prominence because of their significance in optical communication systems, micromanipulation, sub-wavelength position sensing. To this end, simult
Externí odkaz:
http://arxiv.org/abs/2111.14919
Autor:
Chaubey, Shailendra K., Tiwari, Sunny, A., Gokul M., Paul, Diptabrata, Rahman, Atikur, Kumar, G. V. Pavan
Engineering optical emission from two dimensional, transition metal dichalcogenides (TMDs) materials such as Tungsten disulphide (WS2) has implications in creating and understanding nanophotonic sources. One of the challenges in controlling the optic
Externí odkaz:
http://arxiv.org/abs/2110.10387
Autor:
Sharma, Vandana, Tiwari, Sunny, Paul, Diptabrata, Sahu, Ratimanasee, Chikkadi, Vijayakumar, Kumar, G. V. Pavan
Optical excitation of colloids can be harnessed to realize soft matter systems that are out of equilibrium. In this paper, we present our experimental studies on the dynamics of silica colloids in the vicinity of a silver nanowire propagating surface
Externí odkaz:
http://arxiv.org/abs/2109.09557
Autor:
Tiwari, Sunny, Vasista, Adarsh B., Paul, Diptabrata, Chaubey, Shailendra K., Kumar, G. V. Pavan
We report on the experimental observation of beaming elastic and surface enhanced Raman scattering (SERS) emission from a bent-nanowire on a mirror (B-NWoM) cavity. The system was probed with polarization resolved Fourier plane and energy-momentum im
Externí odkaz:
http://arxiv.org/abs/2106.09347
We report on the experimental observation of mirror enhanced directional surface enhanced Raman scattering (SERS) from a self-assembled monolayer of molecules coupled to a nanowire-nanoparticle (NW-NP) junction on a mirror in remote excitation config
Externí odkaz:
http://arxiv.org/abs/2104.13121