Abstract：
:We propose a new method to extend the path length tunability of rotary delay-lines. This method was shown to achieve a duty cycle of >80% and repetition rates of over 40 kHz. The new method relies on a new multi-segmented micro-machined mirror and serial injection of a single reflection onto separate segments of this mirror. The tunability is provided by the relative positioning of each reflective point on the mirror segments. There are two distinct modes of operation: synchronous and asynchronous. By simply manipulating the spatial position of the returning paths over the respective mirror segments, we can switch between increasing the repetition rate (asynchronous mode) or the total delay path (synchronous mode). We experimentally demonstrated up to 8 m/s scans with repetition rates of up to 42.7 kHz. Furthermore, we present numerical simulations of 18 reflection points to illustrate possibility of achieving a scan speed of up to 80 m/s. Through intermediate combinations of synchronous and asynchronous operation modes with 4 or more passes, we also show that the system can simultaneously increase both repetition rate and scan depth.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Fleddermann R,Lee WM,Huang K,Campbell GT,Lam PK,Chow JHdoi
10.1038/s41598-017-09576-5subject
Has Abstractpub_date
2017-08-24 00:00:00pages
9299issue
1issn
2045-2322pii
10.1038/s41598-017-09576-5journal_volume
7pub_type
杂志文章abstract：:Chiral optical response is an inherent property of molecules and nanostructures, which cannot be superimposed on their mirror images. In specific cases, optical chirality can be observed also for symmetric structures. This so-called extrinsic chirality requires that the mirror symmetry is broken by the geometry of the...
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pub_type： 杂志文章
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更新日期：2018-07-12 00:00:00
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pub_type： 杂志文章
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更新日期：2015-07-31 00:00:00
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pub_type： 临床试验,杂志文章
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更新日期：2015-10-09 00:00:00
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pub_type： 杂志文章
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更新日期：2016-12-19 00:00:00
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pub_type： 杂志文章
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更新日期：2017-06-06 00:00:00
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更新日期：2019-10-17 00:00:00
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pub_type： 杂志文章
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更新日期：2019-07-05 00:00:00
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pub_type： 已发布勘误
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更新日期：2018-07-03 00:00:00
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journal_title：Scientific reports
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