PMID- 31186490
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210111
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 9
IP  - 1
DP  - 2019 Jun 11
TI  - A special three-layer step-index fiber for building compact STED systems.
PG  - 8455
LID - 10.1038/s41598-019-44905-w [doi]
LID - 8455
AB  - 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.
FAU - Luo, Hao
AU  - Luo H
AD  - Key Laboratory of In-Fiber Integrated Optics, Ministry of Education, College of 
      Science, Harbin Engineering University, Harbin, 150001, People's Republic of 
      China.
FAU - Wang, Guiren
AU  - Wang G
AD  - Department of Mechanical Engineering and Biomedical Engineering Program, 
      University of South Carolina, Columbia, SC, 29208, USA.
FAU - Yuan, Libo
AU  - Yuan L
AD  - Photonics Research Center, Guilin University of Electronics Technology, Guilin, 
      541004, People's Republic of China. lbyuan@vip.sina.com.
LA  - eng
GR  - 61535004/National Natural Science Foundation of China (National Science 
      Foundation of China)/
GR  - 61735009/National Natural Science Foundation of China (National Science 
      Foundation of China)/
GR  - 61827819/National Natural Science Foundation of China (National Science 
      Foundation of China)/
PT  - Journal Article
DEP - 20190611
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
EIN - Sci Rep. 2019 Oct 15;9(1):14999. PMID: 31615994
PMC - PMC6560122
COIS- The authors declare no competing interests.
EDAT- 2019/06/13 06:00
MHDA- 2019/06/13 06:01
PMCR- 2019/06/11
CRDT- 2019/06/13 06:00
PHST- 2019/02/15 00:00 [received]
PHST- 2019/05/23 00:00 [accepted]
PHST- 2019/06/13 06:00 [entrez]
PHST- 2019/06/13 06:00 [pubmed]
PHST- 2019/06/13 06:01 [medline]
PHST- 2019/06/11 00:00 [pmc-release]
AID - 10.1038/s41598-019-44905-w [pii]
AID - 44905 [pii]
AID - 10.1038/s41598-019-44905-w [doi]
PST - epublish
SO  - Sci Rep. 2019 Jun 11;9(1):8455. doi: 10.1038/s41598-019-44905-w.