Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Yosio Nisida"'
Publikováno v:
physica status solidi c. 4:1122-1125
Absorption measurements were carried out on the (NV)– centers in diamond at low temperature after laser illumination. It was observed that the width of the zero-phonon line becomes persistently more than two times larger. This characteristic phenom
Publikováno v:
Physica B: Condensed Matter. :288-291
Infrared (IR) absorption measurements were performed at room temperature on neutron-irradiated type Ib diamonds which contain around 100 ppm substitutibnal nitrogen atoms in single form. It was observed that the 1332 cm -1 absorption peak appears by
Publikováno v:
Diamond and Related Materials. 6:1722-1725
New absorption line of 0.545 eV has been observed in type Ib diamond heavily neutron irradiated and annealed at a temperature higher than 1400 °C. This defect is bleached by illumination of higher than 1.9 eV in photon energy. The recovery process a
Publikováno v:
Diamond and Related Materials. 6:1595-1598
The luminescence decay time of the NV center in synthetic Ib diamonds has been measured using the picosecond excitation system at room temperature and ca 5 K. The decay profile with two exponential components of 2.0 ± 0.1 ns and 8.0 ± 0.2 ns has be
Publikováno v:
Diamond and Related Materials. 2:768-772
To elucidate the mechanism of photochromism of H2 and H3 centres, i.e. H 2( H 3 − ) + X + + h ω → H 3 + X 0 , a study has been made of the recovery process of optical absorption and the photosensitive electron spin resonance (ESR) and thermolumi
Autor:
Yosio Nisida, Michio Kondo
Publikováno v:
Journal of the Physical Society of Japan. 60:2415-2423
Photo-magnetic (PM) effect is a change in magnetization which arises from spin reversal or orbital diamagnetism associated with optical excitation and subsequent relaxation processes. The PM effect on shallow impurities in silicon has been studied us
Autor:
Yosio Nisida, Yoshimi Mita
Publikováno v:
SPIE Proceedings.
Using highpressure synthetic diamonds of type Tb NV or 112 center is introduced dominantly by controlling the dose and the annealing temperature. Some optical properties are studied to explore a possibility for application to optoelectronics. For NV
Autor:
Michihiro Kobayashi, Yosio Nisida
Publikováno v:
Japanese Journal of Applied Physics. 32:279
Pressure dependence of vibronic photoluminescence spectra for two types of color centers in diamond: the nitrogen-vacancy `NV' center and the nitrogen-vacancy-nitrogen `H3' center are studied at 77K. By analyzing the spectra, the strength of the elec
Publikováno v:
Journal of the Physical Society of Japan. 46:1797-1803
Magneto-transmission measurements by a strip-line method have been carried out on p-type PbTe whose hole concentration is 3×10 18 cm -3 at 4.2 K, in the wavelength range of 96.5 to 513.2 µm using an optically pumped far-infrared laser. It is shown
Autor:
Kiyofumi Muro, Yosio Nisida
Publikováno v:
Progress of Theoretical Physics Supplement. 57:77-86
Optical transitions between excited states of impurities in germanium, Sb or As, in a magnetic field have been investigated using HCN, DCN and H20 lasers. The energy levels of states with even parity and M= +1, i.e., 3D+l, (113) and (115), are determ