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Characteristics of terahertz radiation emitted from the intrinsic Josephson junctions in high- superconductor
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10.1063/1.3269996
/content/aip/journal/apl/95/23/10.1063/1.3269996
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/23/10.1063/1.3269996
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Sample arrangement. The coordinates and the angles and are defined on the mesa as shown in (a). (b) A photograph of the BSCCO mesa used for the present experiment.

Image of FIG. 2.
FIG. 2.

Spectral characteristics of the radiation from the present BSCCO mesa. (a) The radiation from the BSCCO mesa with width is compared with those from the mercury lamp [gray (blue) curve] and the black body at 1200 K [light gray (green) curve]. All are measured by a TGS pyroelectric sensor. (b) The radiation spectra are measured at perpendicular and at parallel settings of the wire grids at the entrance and at the exit of the Martin–Puplett interferometer to the layers of BSCCO crystal. The observed polarization ratio of the radiation is about 50.

Image of FIG. 3.
FIG. 3.

Spatial distribution of the emission from a mesa of BSCCO. The data were taken with an intensity accuracy of about 0.5 mV without a Si hemispherical lens. (a) The dependence of the emission intensity at and (b) the dependence at , with the angle resolution of 4.3°.

Image of FIG. 4.
FIG. 4.

The long time stability of the emission. The bolometer output suddenly increases when the radiation condition is set at “ON,” and it suddenly decreases when the radiation condition is out of tune.

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/content/aip/journal/apl/95/23/10.1063/1.3269996
2009-12-10
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Characteristics of terahertz radiation emitted from the intrinsic Josephson junctions in high-Tc superconductor Bi2Sr2CaCu2O8+δ
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/23/10.1063/1.3269996
10.1063/1.3269996
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