Results 261 to 270 of about 631,922 (278)

Solid-state cooling line based on the electrocaloric effect

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2011
In this paper, the feasibility of using ferroelectric materials as a cooling device or solid-state refrigerator based on the electrocaloric effect has been considered. The electrocaloric responses of two different ferroelectric capacitors (PMN-25PT, PZN-4.5PT) are studied.
Akram, Khodayari, Saber, Mohammadi
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Solid State Cooling with Advanced Oxide Materials

2014
Abstract : The major discoveries of the program include: 1) discovery of high-performance materials based on compositionally-graded materials with figures of merit 3-12-times larger than traditional materials; 2) study of candidate high-performance materials possessing strong lattice-polarization coupling and electric-field response and insights into ...
William P. King, David G. Cahill, Lane W. Martin   +2 more
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Thermal Transport in Nanostructured Solid-State Cooling Devices

Journal of Heat Transfer, 2005
Low-dimensional nanostructured materials are promising candidates for high efficiency solid-state cooling devices based on the Peltier effect. Thermal transport in these low-dimensional materials is a key factor for device performance since the thermoelectric figure of merit is inversely proportional to thermal conductivity.
Deyu Li, Scott T. Huxtable, Alexis R. Abramson, Arun Majumdar   +3 more
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Novel cooling solutions for LED solid state lighting

2011 12th International Conference on Electronic Packaging Technology and High Density Packaging, 2011
With more and more high power high brightness LEDs adopted in general lighting applications, the state-of-the-art packages cannot meet the requirement of thermal management. Over-heating of an LED will cause premature failure because the efficiency, the spectrum, the reliability and the life of solid state lighting devices strongly depend on successful
Kai Zhang, David G. W. Xiao, Xiaohua Zhang, Haibo Fan, Zhaoli Gao, Matthew M. F. Yuen   +5 more
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Optical Solid State Cooling within a Laser

AIP Conference Proceedings, 2004
Recent demonstrations of optical solid state cooling by anti‐Stokes luminescence has yielded temperatures of 236 K, while it has been predicted that cooling efficiencies of the order of 1% are obtainable for temperatures as low as 40 to 50 K for some materials.
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Optical refrigeration sets solid-state cooling record

Physics Today, 2010
Certain high-purity solid materials can be cooled by an all-solid-state laser-based system.
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Conductively cooled all-solid-state zigzag slab laser

Chinese Optics Letters, 2008
A diode pumped, Q-switched Nd:YAG zigzag slab laser is developed using passive conduction cooling. Flat-flat and unstable resonators are adopted in this experiment. The 150-mJ multi-mode and 100-mJ single-mode laser outputs with pulse width of 10 ns are achieved, corresponding to optical efficiencies of 19% and 13%, respectively.
Xiuhua Ma Xiuhua Ma, Jinzi Bi Jinzi Bi, Xia Hou Xia Hou, Weibiao Chen Weibiao Chen   +3 more
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Solid-state laser cooling of optically levitated particles

Optical Trapping and Optical Micromanipulation XV, 2018
Ultra-high sensitivity sensors can be achieved with optically levitated particles in ultra-high vacuum (UHV). Trapped particles act as high-Q harmonic oscillators, whose amplitude, position, and frequency can be monitored to provide high sensitivity measurements of the particle’s acceleration. Larger particles (10-30 microns in diameter) provide higher
Wm. Randall Babbitt, Zeb Barber, Charles W. Thiel, David P. Atherton, Philip J. T. Woodburn, Demi St. John   +5 more
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All fiber approach to solid-state laser cooling

SPIE Proceedings, 2012
An all fiber approach to optical cooling is being investigated experimentally and theoretically using Tm-doped fiber laser and Tm-doped fiber cooler. A single mode, high efficiency and high power Tm-doped fiber laser is used to pump at the absorption edge of Tm-doped fiber coolers, one made by germanate and the other by tellurite glasses.
Dan T. Nguyen, Jie Zong, Dan Rhonehouse, Andy Miller, Zhidong Yao, Garrett Hardesty, N. H. Kwong, Rolf Binder, Arturo Chavez-Pirson   +8 more
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Exploring Magnetic Elastocaloric Materials for Solid-State Cooling

Shape Memory and Superelasticity, 2017
In the past decade, there has been an increased surge in the research on elastocaloric materials for solid-state refrigerators. The strong coupling between structure and magnetism inspires the discovery of new multi-field driven elastocaloric alloys. This work is devoted to magnetic shape memory alloys suitable for mechanical cooling applications. Some
Jian Liu, Dewei Zhao, Yang Li
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