131 citations · 700 across the 18 of their papers we have counts for
18 papers
Direct optical excitation of an NV center via a nanofiber Bragg-cavity: A theoretical simulation
Toshiyuki Tashima, Hideaki Takashima, Shigeki Takeuchi
Direct optical excitation of a nitrogen-vacancy (NV) center in nanodiamond by light via a nanofiber is of interest for all-fiber-integrated quantum applications. However, the backg…
Active control of a plasmonic metamaterial for quantum state engineering
S. A. Uriri, T. Tashima, X. Zhang +7
We experimentally demonstrate the active control of a plasmonic metamaterial operating in the quantum regime. A two-dimensional metamaterial consisting of unit cells made from gold…
Optimal nonlocal conversion of photonic four-partite entanglement from two Bell pairs in quantum networks
Yuki Takeuchi, Nobuyuki Imoto, Toshiyuki Tashima
We analyze optimal schemes and also propose some practical schemes for the nonlocal conversion from two shared Bell pairs to four-qubit entangled states in optical quantum networks…
Experimental demonstration of two-photon magnetic resonances in a single-spin-system of a solid
Toshiyuki Tashima, Hiroki Morishita, Norikazu Mizuochi
While the manipulation of quantum systems is significantly developed so far, achieving a single-source multi-use system for quantum-information processing and networks is still cha…
Design, Fabrication, and Characterization of Ta2O5 Photonic Strip Waveguides
Lars Liebermeister, Niko Heinrichs, Florian Böhm +6
Efficient coupling of single quantum emitters to guided optical modes of integrated optical devices is of high importance for applications in quantum information science as well as…
Extension of the Coherence Time by Generating MW Dressed States in a Single NV Centre in Diamond
Hiroki Morishita, Toshiyuki Tashima, Disuke Mima +5
Nitrogen-vacancy (NV) centres in diamond hold promise in quantum sensing applications. A major interest in them is an enhancement of their sensitivity by the extension of the coher…