Abstract：
:This study describes a new two-step process to cool the thermal vibration of microcantilevers. The process combines active mechanical feedback cooling and optical cavity cooling. A micro-Fabry-Perot interferometer, built in-house, is set atop a microcantilever to measure the vibration amplitude, the high optical power density of which induces cavity cooling in the optical cavity. Using a two-step cooling procedure, the equivalent temperature of the thermal vibration of a microcantilever is lowered from room temperature to the theoretical cooling limit of 0.063 K, a much lower temperature than that achieved via simple cavity cooling (18 K), and then by mechanical feedback cooling (0.135 K) obtained for the same type of microcantilevers in previous studies. This experimental demonstration showcases a new type of cooling process of the amplitude of thermal vibration for micro-mechanical resonators to a lower temperature and does not need additional cooling using a conventional cryogenic refrigerator.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Kawamura Ydoi
10.1038/s41598-019-55496-xsubject
Has Abstractpub_date
2019-12-13 00:00:00pages
19094issue
1issn
2045-2322pii
10.1038/s41598-019-55496-xjournal_volume
9pub_type
杂志文章abstract：:The South Asian subcontinent is characterized by a complex history of human migrations and population interactions. In this study, we used genome-wide data to provide novel insights on the demographic history and population relationships of six Indo-European populations from the Indian State of West Maharashtra. The s...
journal_title：Scientific reports
pub_type： 杂志文章
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abstract：:The molecular bases of the Frank-Starling law of the heart and of its cellular counterpart, the length dependent activation (LDA), are largely unknown. However, the recent discovery of the thick filament activation, a second pathway beside the well-known calcium mediated thin filament activation, is promising for eluc...
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pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章,meta分析
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更新日期：2015-11-23 00:00:00
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pub_type： 已发布勘误
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