140 citations · 219 across the 4 of their papers we have counts for
4 papers
Coupling of ultrathin tapered fibers with high-Q microsphere resonators at cryogenic temperatures and observation of phase-shift transition from undercoupling to overcoupling
Masazumi Fujiwara, Tetsuya Noda, Akira Tanaka +3
We cooled ultrathin tapered fibers to cryogenic temperatures and controllably coupled them with high-Q microsphere resonators at a wavelength close to the optical transition of dia…
Highly efficient coupling of photons from nanoemitters into single-mode optical fibers
Masazumi Fujiwara, Kiyota Toubaru, Tetsuya Noda +2
Highly efficient coupling of photons from nanoemitters into single-mode optical fibers is demonstrated using tapered fibers. 7.4 +/- 1.2 % of the total emitted photons from single…
Optical transmittance degradation in tapered fibers
Masazumi Fujiwara, Kiyota Toubaru, Shigeki Takeuchi
We investigated the cause of optical transmittance degradation in tapered fibers. Degradation commences immediately after fabrication and it eventually reduces the transmittance to…
Phase shift spectra of a fiber-microsphere system at the single photon level
Akira Tanaka, Takeshi Asai, Kiyota Toubaru +4
We succeeded in measuring phase shift spectra of a microsphere cavity coupled with a tapered fiber using a weak coherent probe light at the single photon level. We utilized a taper…