Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Kohzo Hakuta"'
Autor:
Ramachandrarao Yalla, Y. Kojima, Y. Fukumoto, H. Suzuki, O. Ariyada, K. Muhammed Shafi, Kali P. Nayak, Kohzo Hakuta
We experimentally demonstrate the integration of silicon-vacancy centers in nanodiamonds (SiV-NDs) with an optical nanofiber (ONF). We grow SiV-NDs on seed NDs dispersed on a quartz substrate using a microwave plasma-assisted chemical vapor depositio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a58733678080055a7b7fe3880635d0b
We demonstrate a one-sided cavity on an optical nanofiber (ONF) using a composite method. The one-sided composite cavity is created by mounting an asymmetric defect mode grating on an ONF. We design the one-sided composite cavity on an ONF to enhance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50708cdbcc5f4b0be01a699b08e8b3e8
Publikováno v:
Conference on Lasers and Electro-Optics.
A nanophotonic-based one-sided cavity is demonstrated using a composite technique. The cavity is designed to maximize channeling efficiency into one side of an optical nanofiber. Cavity coupling characteristics exhibited good correspondence with simu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cd03c8e6766e5e57d3b15f2302efa19
https://doi.org/10.1364/cleo_at.2022.jw3b.139
https://doi.org/10.1364/cleo_at.2022.jw3b.139
Autor:
Ramachandrarao Yalla, Kohzo Hakuta
We report a novel approach to the design and implementation of a tunable cavity on an optical nanofiber (ONF). The key point is to create a composite photonic crystal cavity (CPCC), by combining an ONF and a chirped period defect mode grating. Using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2b0d5229bc46011f16d3f366b5691c9
http://arxiv.org/abs/2007.03625
http://arxiv.org/abs/2007.03625
Autor:
Wei Luo, Tsutsumi Emi, Iida Kazunori, Ramachandrarao Yalla, K. Muhammed Shafi, Akiharu Miyanaga, Kohzo Hakuta
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
Scientific Reports
Scientific Reports
Recent progress in quantum nanophotonics brings novel ways for manipulating single photons in various nano-waveguides. Among them, one promising approach is to use optical nanofibres (ONFs), tapered optical fibres with sub-wavelength diameter waists.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9b4217a3826b320bbe7b9e7786a4f03
http://link.springer.com/article/10.1038/s41598-018-31888-3
http://link.springer.com/article/10.1038/s41598-018-31888-3
We discuss photo-luminescence characteristics of CdSe core/shell quantum dots at cryogenic temperatures using a hybrid system of a single quantum dot and an optical nanofiber. The key point is to control the emission species of quantum dot to charged
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c336162bc9ce8ddf375026aa0c1c845
We demonstrate a fiber in-line single photon source based on a hybrid system of colloidal single quantum dots deposited on an optical nanofiber and cooled down to cryogenic temperature (3.7 K). We show that a charged state (trion) of the single quant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16a63555893a8b1373a33fa389fe1a74
We study the generation of correlated photon pairs and heralded single photons via strongly non-degenerate spontaneous four-wave mixing (SFWM) in a series of identical micro-/nano fibers (MNF). Joint spectral intensity of the biphoton field generated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55f4279bcf3a70888eb1da50cf2d8a19
http://arxiv.org/abs/1910.12918
http://arxiv.org/abs/1910.12918
Publikováno v:
Scopus-Elsevier
Recent progress in quantum photonics with optical nanofibers (ONFs) is reported. Emphasis is on the photon channeling into the fiber guided modes for a hybrid system of an ONF cavity and a single quantum emitter.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ef8029ed0c6e8e98edc77cd61a9e443
https://doi.org/10.1364/cleopr.2018.w4e.2
https://doi.org/10.1364/cleopr.2018.w4e.2
Autor:
Kohzo Hakuta
Publikováno v:
OFC
Optical nanofiber technologies are discussed for both bare nanofibers and cavity created nanofibers. Emphasis is on the single-photon channeling into the fiber guided modes with a hybrid system of an optical-nanofiber and a single quantum-emitter.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::140236b8f7b8e3f069f86963ca9ed6a4
https://doi.org/10.1364/ofc.2018.m4f.1
https://doi.org/10.1364/ofc.2018.m4f.1