Abstract:
:Up to now, most of stimulated-emission-depletion (STED) systems were lens-based bulky systems. Exchanging some spatial light paths with optical fiber components will make the systems more flexible and will benefit various fields. A big problem to achieve this goal is that the STED beam generated by the traditional method of bulky systems cannot be maintained in an optical fiber due to its birefringence. In this article, we will introduce a type of special optical fiber. With the special fiber, a dark hollow beam with doughnut-shaped focal spot and a concentric beam with Gaussian-shaped focal spot can be generated at the same time. Parameters of a sample and a compact STED system based on it are demonstrated.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Luo H,Wang G,Yuan Ldoi
10.1038/s41598-019-44905-wsubject
Has Abstractpub_date
2019-06-11 00:00:00pages
8455issue
1issn
2045-2322pii
10.1038/s41598-019-44905-wjournal_volume
9pub_type
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