Abstract
We show that a hemispherically shaped tip on an air-clad optical fiber simultaneously works as a high-numericalaperture lens and efficiently collects photons from an emitter placed near the beam waist into the fundamental guided mode. Numerical simulations show that the coupling efficiency reaches about 25%. We have constructed a confocal microscope with such a lensed fiber. The measurements are in good agreement with the numerical simulation. The monolithic structure with a high-photon-collection efficiency will provide a flexible substitute for a conventional lens system in various experiments such as single-atom trapping with a tightly focused optical trap.
| Original language | English |
|---|---|
| Pages (from-to) | 773-776 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 39 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2014 Feb 15 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
High-numerical-aperture microlensed tip on an air-clad optical fiber. / Kato, Shinya; Chonan, Sho; Aoki, Takao.
In: Optics Letters, Vol. 39, No. 4, 15.02.2014, p. 773-776.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High-numerical-aperture microlensed tip on an air-clad optical fiber
AU - Kato, Shinya
AU - Chonan, Sho
AU - Aoki, Takao
PY - 2014/2/15
Y1 - 2014/2/15
N2 - We show that a hemispherically shaped tip on an air-clad optical fiber simultaneously works as a high-numericalaperture lens and efficiently collects photons from an emitter placed near the beam waist into the fundamental guided mode. Numerical simulations show that the coupling efficiency reaches about 25%. We have constructed a confocal microscope with such a lensed fiber. The measurements are in good agreement with the numerical simulation. The monolithic structure with a high-photon-collection efficiency will provide a flexible substitute for a conventional lens system in various experiments such as single-atom trapping with a tightly focused optical trap.
AB - We show that a hemispherically shaped tip on an air-clad optical fiber simultaneously works as a high-numericalaperture lens and efficiently collects photons from an emitter placed near the beam waist into the fundamental guided mode. Numerical simulations show that the coupling efficiency reaches about 25%. We have constructed a confocal microscope with such a lensed fiber. The measurements are in good agreement with the numerical simulation. The monolithic structure with a high-photon-collection efficiency will provide a flexible substitute for a conventional lens system in various experiments such as single-atom trapping with a tightly focused optical trap.
UR - http://www.scopus.com/inward/record.url?scp=84897406898&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84897406898&partnerID=8YFLogxK
U2 - 10.1364/OL.39.000773
DO - 10.1364/OL.39.000773
M3 - Article
C2 - 24562203
AN - SCOPUS:84897406898
VL - 39
SP - 773
EP - 776
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 4
ER -