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pro vyhledávání: '"Herman, Tobias"'
We report a precision realization of photonic thermometry using dual-comb spectroscopy to interrogate a $\pi$-phase-shifted fiber Bragg grating. We achieve read-out stability of 7.5 mK at 1 s and resolve temperature changes of similar magnitude--suff
Externí odkaz:
http://arxiv.org/abs/2212.04375
Autor:
Herman, Tobias, Beamish, John
Fluid phase transitions in porous media are a powerful probe of the effect of confinement and disorder on phase transitions. Aerogel may provide a model system in which to study the effect of dilute impurities on a variety of phase transitions. In th
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506815
Aerogels are very compliant materials - even small stresses can lead to large deformations. In this paper we present measurements of the linear deformation of high porosity aerogels during adsorption of low surface tension fluids, performed using a L
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506799
Publikováno v:
Phys. Rev. Lett., vol. 95, 035301 (2005)
The recent torsional oscillator results of Kim and Chan suggest a supersolid phase transition in solid He-4 confined in Vycor. We have used a capacitive technique to directly monitor density changes for helium confined in Vycor at low temperature and
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506619
We have investigated the adsorption and desorption of helium near its liquid-vapor critical point in silica aerogels with porosities between 95% and 98%. We used a capacitive measurement technique which allowed us to probe the helium density inside t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505430
Akademický článek
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Publikováno v:
Journal of Chemical Physics; 12/28/2009, Vol. 131 Issue 24, p244513, 14p, 1 Diagram, 9 Graphs
Autor:
Ahmed, Zeeshan, Klimov, Nikolai, Purdy, Thomas P., Herman, Tobias, Douglass, Kevin, Fitzgerald, Ryan, Kundagrami, Raunak
Publikováno v:
Proceedings of SPIE; 12/17/2018, Vol. 10923, p1-8, 8p
Autor:
Reed, Graham T., Knights, Andrew P., Ahmed, Zeeshan, Klimov, Nikolai, Purdy, Thomas P., Herman, Tobias, Douglass, Kevin, Fitzgerald, Ryan, Kundagrami, Raunak
Publikováno v:
Proceedings of SPIE; March 2019, Vol. 10923 Issue: 1 p109230L-109230L-8, 983079p
Autor:
Herman, Tobias *, Beamish, John
Publikováno v:
In Physica B: Physics of Condensed Matter 2003 329 Part 1:431-432