Results 51 to 60 of about 785 (181)

Critical Limitations in Cryogenic Laser Cooling of Solids: Symmetry‐Related Fluorescence Trapping and Condensation‐Induced Parasitic Heating

Advanced Science, Volume 13, Issue 19, 2 April 2026.
This study uncovers two overlooked bottlenecks in cryogenic laser cooling of solids: symmetry‐driven fluorescence trapping and water vapor condensation. We demonstrate that breaking sample symmetry enhances fluorescence escape, while condensation dominates parasitic heating below 135 K.
Biao Zhong, Jiayi Zhang, Haodong Yang, Lianzhong Deng, Mauro Tonelli, Ercang Luo   +5 more
wiley   +1 more source

Tunable Josephson Generator for Qubit Excitation and Two‐Tone Spectroscopy

Advanced Quantum Technologies, Volume 9, Issue 3, March 2026.
A tunable on‐chip Josephson generator that enables direct qubit excitation has been presented. The device consists of a current‐biased Josephson junction and a superconducting resonator, forming a microwave source that operates at 4 K. Excitation of the qubit at 20 mK was done via a short coaxial line between the 4 K and 20 mK stages.
M. M. Khrenov, R. D. Yusupov, G. I. Gubochkin, V. A. Vozhakov, I. A. Nazhestkin, A. D. Belanovsky, A. S. Ionin, P. A. Gladilovich, G. S. Khismatullin, L. V. Filippenko, M. Y. Fominskii, V. P. Koshelets, M. Yu. Kupriyanov, V. V. Ryazanov, N. Maleeva, N. V. Klenov, I. I. Soloviev, D. S. Yakovlev   +17 more
wiley   +1 more source

Ice Lithography: Recent Progress Opens a New Frontier of Opportunities

Advanced Functional Materials, Volume 36, Issue 12, 9 February 2026.
This review focuses on recent advancements in ice lithography, including breakthroughs in compatible precursors and substrates, processes and applications, hardware, and digital methods. Moreover, it offers a roadmap to uncover innovation opportunities for ice lithography in fields such as biological, nanoengineering and microsystems, biophysics and ...
Bingdong Chang, Gwendoline A. E. Anand, Rubaiyet Haque, Dylan A. Chiaro, Mona Sharma, Andrew R. Williams, Frank Niklaus, Daryl W. Yee, Gavin M. King, Anpan Han   +9 more
wiley   +1 more source

Research on Small-Scale Oxygen Liquefaction Using a Stirling Cryocooler

Energies
Traditional cryogenic air separation units are unsuitable for distributed, small-scale liquid oxygen production. Cryocooler-based liquefaction technology offers an alternative solution, featuring a large cooling capacity, high efficiency, a compact ...
Wanlu Li, Ya Xu, Daming Sun, Qie Shen
doaj   +1 more source

Application and Validation of Stirling Cryocoolers in Domestic Refrigerators

Zhileng xuebao
Stirling cryocoolers have the advantages of fewer moving parts, oil-free, single-phase heat transfer, a large refrigeration temperature range, convenient and adjustable refrigeration capacity, and high refrigeration efficiency. Therefore, they have broad
Li Jing, Liu Qingshan, Yang Peng, Liu Yingwen   +3 more
doaj  

Experiment-Based Design of Stirling Cryocooler Compressor Using Response-Controlled Testing

Vibration
Flexure-based Stirling cryocooler compressors are a critical technology in providing cryogenic temperatures in various advanced engineering fields, such as aerospace, defense, and medical imaging.
Suna Güçyılmaz Çetin, Taylan Karaağaçlı, Ahmet H. Ertas   +2 more
doaj   +1 more source

Experimental Study on a Hundred-Watt Highly-Efficient Displacer-Type Pulse Tube Cryocooler

Zhileng xuebao
The displacer-type pulse tube cryocooler employs a displacer for phase adjustment and the recovery of acoustic power, resulting in the potential for high refrigeration efficiency.
吴彦康, 陈曦, 郑朴, 周振东, 叶天, 张华   +5 more
doaj  

Review on Joule-Thompson Effect Throttle Cryocooler

Zhileng xuebao, 2019
The recent development of micro-sized Joule–Thomson (J-T) effect throttle cryocoolers is reviewed in this paper. The existing technology and research results are summarized from the theoretical research and structural evolution of the cryocooler.
She Hailong, Cui Xiaoyu, Geng Hui, Pan Xiaoshan   +3 more
doaj  

Theoretical and Experimental Vibration Generation in a Coaxial Pulse-Tube Cryocooler

Vibration
The microphonic noise induced by the vibration from cryocoolers has been found to cause energy resolution degradation in vibration-sensitive instruments.
Hongyan Wei, Yulan Li, Yuqiang Xun, Huaqiang Zhong   +3 more
doaj   +1 more source

Experimental Study on Multilayer Rectangular Micro-channel Joule-Thomson Cryocooler with Nitrogen

Zhileng xuebao, 2017
A multilayer micro-channel Joule-Thomson (J-T) cryocooler was designed by combining several layers of rectangular micro-channels with a coke soup cooler.
Geng Hui, Cui Xiaoyu, Wang Wenqing, Weng Jianhua   +3 more
doaj