Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Maharjan, Rijan"'
Autor:
Poudel, Ankit, Bhattarai, Pravin, Maharjan, Rijan, Curry, Richard J, Crowe, Iain F, Dhakal, Ashim
We demonstrate a compact (40 ${\mu}$m $\times$ 260 ${\mu}$m) spectrometer based on multimode interference aided by scattering of light from random SiO$_2$-filled hole arrays on a silicon-on-insulator platform. We characterize the performance of the s
Externí odkaz:
http://arxiv.org/abs/2209.10772
Publikováno v:
Optics Continuum 2023
The average Raman signal power obtained in a modulated optical trap is dependent on the Brownian motion - therefore hydrodynamic properties of the trapped particle. Hence, in addition to the molecular properties obtained from the Raman signal, it is
Externí odkaz:
http://arxiv.org/abs/2207.14004
Autor:
Maharjan, Rijan, Bohora, Sanket, Bhattarai, Pravin, Crowe, Iain, Curry, Richard J., Hogg, Richard, Childs, David, Dhakal, Ashim
We demonstrate an on-chip Silicon-on-Insulator (SOI) axicon etched using a low resolution (200 nm feature size, 250 nm gap) deep-ultraviolet lithographic fabrication. The axicon consists of circular gratings with seven stages of 1x2 multimode interfe
Externí odkaz:
http://arxiv.org/abs/2008.05130
Publikováno v:
Phys. Rev. E 103, 012603 (2021)
We investigate dilation-induced surface deformations in a Discontinuous Shear Thickening (DST) suspension to determine the relationship between dilation and stresses in DST. Video is taken at two observation points on the surface of the suspension in
Externí odkaz:
http://arxiv.org/abs/2004.14316
Akademický článek
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Autor:
Maharjan, Rijan, Brown, Eric
Publikováno v:
Phys. Rev. E 99, 042604 (2019)
We present a technique for obtaining an effective packing fraction for discontinuous shear thickening suspensions near a critical point. It uses a measurable quantity that diverges at the critical point -- in this case the inverse of the shear rate $
Externí odkaz:
http://arxiv.org/abs/1811.08462
Publikováno v:
Phys. Rev. E 97, 052603 (2018)
We experimentally characterize the impact response of concentrated suspensions of cornstarch and water. We hypothesize that the dynamically jammed region that propagates ahead of the impactor is responsible for the strong stress response to impact wh
Externí odkaz:
http://arxiv.org/abs/1709.01133
Autor:
Maharjan, Rijan, Brown, Eric
Publikováno v:
Phys. Rev. Fluids 2, 123301 (2017)
We investigated the transient relaxation of a Discontinuous Shear Thickening suspension of cornstarch in water. We performed 2 types of relaxation experiments starting from a steady shear in a parallel plate rheometer, followed by either stopping the
Externí odkaz:
http://arxiv.org/abs/1610.01678
Autor:
Sharma, Rohin, Bhattarai, Nishma, Maharjan, Rijan, Woods, Lilia M., Ojha, Nirajan, Dhakal, Ashim
Publikováno v:
Advanced Photonics Research; Aug2024, Vol. 5 Issue 8, p1-7, 7p
Publikováno v:
Phys. Rev. E 97, 052602 (2018)
We experimentally characterize the impact response of concentrated suspensions consisting of cornstarch and water. We observe that the suspensions support a large normal stress -- on the order of MPa -- with a delay after the impactor hits the suspen
Externí odkaz:
http://arxiv.org/abs/1407.0719