190 citations · 501 across the 14 of their papers we have counts for
14 papers
Measurement of single-cell elasticity by nanodiamond-sensing of non-local deformation
Yue Cui, Weng-Hang Leong, Chu-Feng Liu +5
Nano-indentation based on, e.g., atomic force microscopy (AFM), can measure single cell elasticity with high spatial resolution and sensitivity, but relating the data to cell mecha…
High-Speed Tunable Microcavities Coupled to Rare-Earth Quantum Emitters
Kangwei Xia, Fiammetta Sardi, Colin Sauerzapf +6
Electro-optical control of on-chip photonic devices is an essential tool for efficient integrated photonics. Lithium niobate on insulator (LNOI) is an emerging platform for on-chip…
A universal method for depositing patterned materials in-situ
Yifan Chen, Siu Fai Hung, Wing Ki Lo +6
Current techniques of patterned material deposition require separate steps for patterning and material deposition. The complexity and harsh working conditions post serious limitati…
Sensing individual nuclear spins with a single rare-earth electron spin
Thomas Kornher, Da-Wu Xiao, Kangwei Xia +4
Rare-earth related electron spins in crystalline hosts are unique material systems, as they can potentially provide a direct interface between telecom band photons and long-lived s…
Ultra-sensitive hybrid diamond nanothermometer
Chu-Feng Liu, Weng-Hang Leong, Kangwei Xia +6
Nitrogen-vacancy (NV) centers in diamond are promising quantum sensors for their long spin coherence time under ambient conditions. However, their spin resonances are relatively in…
Nanometer-precision non-local deformation reconstruction using nanodiamond orientation sensing
Kangwei Xia, Chu-Feng Liu, Weng-Hang Leong +5
Information of material deformation upon loading is critical to evaluate mechanical properties of materials in general, and key to understand fundamental mechano-stimuli induced re…
Super-resolution microscopy of single rare-earth emitters
R. Kolesov, S. Lasse, C. Rothfuchs +4
We demonstrate super-resolution imaging of single rare-earth emitting centers, namely, trivalent cerium, in yttrium aluminum garnet (YAG) crystals by means of stimulated emission d…
Optical and spin properties of a single praseodymium ion in a crystal
Kangwei Xia, Roman Kolesov, Ya Wang +5
The investigation of single atoms in solids, with both optical and nuclear spin access is of particularly interest with applications ranging from nanoscale sensing to quantum compu…
Amorphous silicon-doped titania films for on-chip photonics
Thomas Kornher, Kangwei Xia, Roman Kolesov +8
High quality optical thin film materials form a basis for on-chip photonic micro- and nano-devices, where several photonic elements form an optical circuit. Their realization gener…
Production yield of rare-earth ions implanted into an optical crystal
Thomas Kornher, Kangwei Xia, Roman Kolesov +9
Rare-earth ions doped into desired locations of optical crystals might enable a range of novel integrated photonic devices for quantum applications. With this aim, we have investig…
Nanoscale nonlinear effects in Erbium-implanted Yttrium Orthosilicate
Nadezhda Kukharchyk, Stepan Shvarkov, Sebastian Probst +11
Doping of substrates at desired locations is a key technology for spin-based quantum memory devices. Focused ion beam implantation is well-suited for this task due to its high spac…
All-optical preparation of coherent dark states of a single rare earth ion spin in a crystal
Kangwei Xia, Roman Kolesov, Ya Wang +8
All-optical addressing and control of single solid-state based qubits allows for scalable architectures of quantum devices such as quantum networks and quantum simulators. So far,…
Coherent properties of single rare-earth spin qubits
P. Siyushev, K. Xia, R. Reuter +8
Rare-earth-doped crystals are excellent hardware for quantum storage of optical information. Additional functionality of these materials is added by their waveguiding properties al…
Mapping spin coherence of a single rare-earth ion in a crystal onto a single photon polarization state
Roman Kolesov, Kangwei Xia, Rolf Reuter +4
We report on optical detection of a single photostable Ce3+ ion in an yttrium aluminium garnet (YAG) crystal and on its magneto-optical properties at room temperature. The quantum…