Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Y. Nisida"'
Publikováno v:
AIP Advances, Vol 8, Iss 2, Pp 025106-025106-6 (2018)
Neutron heavy irradiation was performed on synthetic diamonds contain nitrogen atoms in isolated substitutional form (called “type Ib diamond”) and they were annealed under a pressure of 6 GPa. A large number of nitrogen B-aggregate which consist
Externí odkaz:
https://doaj.org/article/901535a9ffc6484688bc53e5d86bf243
Publikováno v:
Philosophical Magazine Letters. 76:93-98
The absorption strengths of the N3 centres in natural type-Ia and in neutronirradiated and post-annealed synthetic type-Ib diamonds have been measured under various illumination conditions. In the type-Ib diamond, an increase in absorption is observe
Publikováno v:
Physical Review B. 54:3793-3799
For type-Ib diamond, we have experimentally studied the change in the Raman spectrum with the concentration of nitrogen impurities, the fluence of neutron irradiation and $^{13}\mathrm{C}$ isotope composition, to look for phonon scattering due to the
Publikováno v:
Physica B: Condensed Matter. 184:137-140
To study the electronic states of an NV center in synthetic type-Ib diamonds, the Zeeman effect of the zero-phonon line (ZPL) in the absorption spectrum has been examined under high magnetic fields B, up to 150 T at 77 K. The absorption peak energies
Publikováno v:
Materials Science Forum. :561-566
Autor:
Hiroshi Yoshida, Chieto Murayama, Haruo Kobayashi, Y. Nisida, Kazumasa Ando, Haijun Lin, Hajime Konagaya, Hao San
Publikováno v:
APCCAS
This paper proposes a new architecture of the feedforward multibit DeltaSigmaAD modulator for low power application. The SQNDR (Signal to Quantization Noise and Distortion Ratio) of DeltaSigmaAD modulator is limited by the dynamic range of the input
Publikováno v:
Journal of Physics: Condensed Matter. 2:8567-8574
Photochromism has been studied for irradiated type Ib diamonds which are then annealed above 1500 degrees C. This mainly involves H2 and H3 centres. When the samples are illuminated with light of wavelength shorter than 600 nm, absorption of H2 centr
Publikováno v:
Applied Physics Letters. 73:1358-1360
Infrared absorption and electron spin resonance measurements have been performed in nitrogen-containing mixed-type diamonds under several illumination conditions. It has been observed that bulk one-phonon absorption spectra are modulated by illuminat
Publikováno v:
Solid State Communications. 102:659-661
Near-infrared absorption lines of 2916, 4066, 4113, 4139 and 4168 cm−1 have been observed in type IIa diamond neutron irradiated and annealed at temperatures higher than 1400°C. A photochromic behaviour of these defects under various illumination
Autor:
Hitoshi Sumiya, K Furuno, Shuji Yazu, Y Nisida, M Hasegawa, Akifumi Onodera, Michihiro Kobayashi
Publikováno v:
Physical review. B, Condensed matter. 44(22)