Results 31 to 40 of about 37,943 (215)

Observation of Spontaneous Brillouin Cooling

, 2011
While radiation-pressure cooling is well known, the Brillouin scattering of light from sound is considered an acousto-optical amplification-only process.
A Naik, A Schliesser, AA Savchenkov, B Jalali, C Metzger, C Metzger, D Kleckner, Florian Marquardt, G Bahl, Gaurav Bahl, IS Grudinin, IS Grudinin, J Chan, J Knight, J Mertz, J Thompson, JD Teufel, L Ding, M Eichenfield, M Gorodetsky, M Li, M Tomes, M Tomes, Matthew Tomes, ML Povinelli, MS Kang, N Vermeulen, O Arcizet, P Dainese, R Riviere, R Shelby, RW Boyd, RY Chiao, S Gigan, T Carmon, T Carmon, T Carmon, Tal Carmon, TJ Kippenberg   +38 more
core   +1 more source

Optimization of the Location of the Oil Cooling Gallery in the Diesel Engine Piston [PDF]

The Open Mechanical Engineering Journal, 2016
The oil cooling gallery is arranged at the top of the piston, which can effectively reduce the heat load of the piston. In this paper, finite element analysis and fatigue analysis by FE-safe are used to calculate the effects of the different positions of the oil cooling gallery to the temperature, stress field and the fatigue strength of the bowl rim ...
Lijun Deng, Yongqi Liu, Zhiming Wang, Shiying Liu, Jian Zhang   +4 more
openaire   +2 more sources

Evanescent straight tapered-fiber coupling of ultra-high Q optomechanical micro-resonators in a low-vibration helium-4 exchange-gas cryostat

, 2013
We developed an apparatus to couple a 50-micrometer diameter whispering-gallery silica microtoroidal resonator in a helium-4 cryostat using a straight optical tapered-fiber at 1550nm wavelength.
Arcizet, O., Kippenberg, T. J., Rivière, R., Schliesser, A.   +3 more
core   +1 more source

Research on the oscillating flow and heat transfer of the cooling gallery inside a multi-material composite piston

Case Studies in Thermal Engineering
The heat transfer ability of cooling gallery inside high-strengthened diesel engine composite piston is highly required. This article established an oscillating heat transfer model for gas-liquid two-phase flow of cooling gallery.
Haixiang Yang, Jilin Lei, Chunming Wang, Fanghao Sun, Xiwen Deng, Jun Wen, Xiangsen Jiang   +6 more
doaj   +1 more source

Coupling of ultrathin tapered fibers with high-Q microsphere resonators at cryogenic temperatures and observation of phase-shift transition from undercoupling to overcoupling [PDF]

, 2012
We cooled ultrathin tapered fibers to cryogenic temperatures and controllably coupled them with high-Q microsphere resonators at a wavelength close to the optical transition of diamond nitrogen vacancy centers.
Fujiwara, Masazumi, Noda, Tetsuya, Takeuchi, Shigeki, Tanaka, Akira, Toubaru, Kiyota, Zhao, Hong-Quan   +5 more
core   +2 more sources

Simultaneous radiation pressure induced heating and cooling of an opto-mechanical resonator

, 2012
Cavity opto-mechanics enabled radiation-pressure coupling between optical and mechanical modes of a micro-mechanical resonator gives rise to dynamical backaction, enabling amplification and cooling of mechanical motion.
Bhave, Sunil A., Tallur, Siddharth
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Comparison of the effects on heat transfer through oil oscillation in a steel piston cooling gallery: Friction welding versus laser welding

Case Studies in Thermal Engineering
Piston cooling gallery plays a critical role in managing the temperature of the piston and its performance. This paper aims to study the effect of oscillatory heat transfer within the cooling galleries, focusing on two distinct types: flanged (friction ...
Min Li, Yao hui Yin, Ya hui Liu, Hui yong Du, Xin Wang, Zeng hui Yin   +5 more
doaj   +1 more source

On optical forces in spherical whispering gallery mode resonators

, 2011
In this paper we discuss the force exerted by the field of an optical cavity on a polarizable dipole. We show that the modification of the cavity modes due to interaction with the dipole significantly alters the properties of the force.
Anetsberger, Arcizet, Arnold, Ashkin, Ashkin, Barker, Chang, Chen, Deych, Groeblacher, Hu, J. T. Rubin, Jayich, Kippenberg, L. Deych, Li, Nieto-Vesperinas, Romero-Isart, Romero-Isart, Rubin, Rubin, Schliesser, Schliesser, Schliesser, Schulze, Wilson, Wong, Yin   +27 more
core   +1 more source

Early age behaviour of concrete supercontainers for radioactive waste disposal [PDF]

, 2009
A
Craeye, Bart, De Schutter, Geert, Van Cotthem, Alain, Van Humbeeck, Hughes   +3 more
core   +2 more sources