Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Soumendra Nath Bandyopadhyay"'
Publikováno v:
ACS Omega, Vol 3, Iss 9, Pp 12304-12311 (2018)
Externí odkaz:
https://doaj.org/article/a18f9127ecb1406e896de7a224dceef3
Publikováno v:
PLoS ONE, Vol 14, Iss 10, p e0223688 (2019)
Insights into the morphology of nanoclusters would facilitate the design of nano-devices with improved optical, electrical, and magnetic responses. We have utilized optical gradient forces for the directed self-assembly of colloidal clusters using hi
Externí odkaz:
https://doaj.org/article/114b7d1d4ea948c1baa3ab38e2a78bc7
Publikováno v:
International Journal of Innovative Technology and Exploring Engineering. 9:710-714
Understanding time has been quite a challenge for human being. Though we in general understand time but its im-plication for physics and the universe just make things very murky. In this paper we will discuss what is the relevance of time in the stud
Autor:
Deepak Kumar, Ajitesh Singh, Soumendra Nath Bandyopadhyay, Krishna Kant Singh, Debabrata Goswami
Publikováno v:
Conference on Lasers and Electro-Optics.
Systematic study of conventional and femtosecond optical tweezers demonstrates an interplay of thermal and optical nonlinearity due to tight focusing. Specifically, Brownian motion of the 250nm radius trapped bead is measured using a quadrant photodi
Publikováno v:
Journal of Optics. 24:054001
We present a microscopic study of water–dimethyl sulfoxide (DMSO) binary mixtures using optical tweezers and thermal lens techniques. Binary mixtures of DMSO with water show anomalous behavior due to the specific hydrogen bonding ability of DMSO. W
Publikováno v:
2019 URSI Asia-Pacific Radio Science Conference (AP-RASC).
Since long the thermal effects have not been much explored in the optical trapping theory, in this paper, we are establishing the effects of optically induced thermal nonlinearity in the medium of optical trapping in the Rayleigh regime for both cont
Publikováno v:
Optics & Laser Technology. 136:106770
Simulating real-time scenarios to predict optical trapping behavior for continuous wave (CW) as well as femtosecond pulsed lasers is a challenging problem. The challenging nature of the problem arises from the fact that, for a tightly focused laser,
Publikováno v:
Asian Journal of Medical Sciences, Vol 8, Iss 1, Pp 94-97 (2017)
Congenital A-V malformations of head-neck region are extremely uncommon lesions encountered in clinical practice. They may lead to a wide array of clinical effects from cosmetic disfigurement and recurrent life threatening haemorrhage to cardiac fail
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-11 (2019)
Scientific Reports
Scientific Reports
We illustrate control of a polarized laser optical trapping potential landscape through the nonideal mixing of binary liquids. The inherent trapping potential asymmetry (ITPA) present in the trapping region results from the asymmetric intensity distr
Publikováno v:
ACS Omega
ACS Omega, Vol 3, Iss 9, Pp 12304-12311 (2018)
ACS Omega, Vol 3, Iss 9, Pp 12304-12311 (2018)
A novel on-the-fly calibration method of optical tweezers is presented, which enables in situ control and measure of absolute temperature and viscosity at nanoscale dimensions. Such noncontact measurement and control at the nanoscale are challenging