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Dichotomy of photoinduced quasiparticle on planes of directly revealed by femtosecond polarization spectroscopy
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10.1063/1.2764237
/content/aip/journal/jap/102/3/10.1063/1.2764237
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/3/10.1063/1.2764237

Figures

Image of FIG. 1.
FIG. 1.

The experimental setup for pump-probe spectroscopy. Code: AOM: acousto-optic modulator. : polarizer. : plate. PD: photodiode. : delay stage. CDS: control and detection system. , : prism pair for pulse compression. Both solid and dashed lines represent the laser beam paths and the dotted lines stand for the electrical signal connection. Inset: is the angle between the -axis of the samples and the polarization of the pump (or probe) pulses. is the angle between the surface of samples and the polarization of the pump (or probe) pulses.

Image of FIG. 2.
FIG. 2.

(Color online) Schematic illustrations of the geometric relation between the polarized light and the two-dimensional (2D) charges in an anisotropic structure. , , and are the charges along the axis, axis, and diagonal, respectively. , , and are the wave vectors of the polarized light. is the angle between the axis and field.

Image of FIG. 3.
FIG. 3.

(Color online) semilogarithmic plots of vs pump-probe delay time at 60 K on various crystalline orientations. The signal in the -axis configuration was measured for (100) YBCO films by the polarized light with the wave vector shown in Fig. 2(b). The signal in the -diagonal configuration was measured for (110) YBCO films by the polarized light with the wave vector shown in Fig. 2(c). The solid lines are guides to the eye emphasizing the relaxation behavior of the photoinduced carriers along various crystalline orientations. Inset: signal measured at 70 K for a (001)YBCO thin film in several configurations with different angle between the axis and field [Fig. 2(a)] presented on a semilogarithmic scale.

Image of FIG. 4.
FIG. 4.

(Color online) 2D distribution of the amplitude of as a function of the reduced temperature on the plane of YBCO. Inside the dashed circle is the superconducting zone where the temperature is below .

Tables

Generic image for table
Table I.

The driven charges under various polarization configurations in Fig. 2(a).

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/content/aip/journal/jap/102/3/10.1063/1.2764237
2007-08-06
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dichotomy of photoinduced quasiparticle on CuO2 planes of YBa2Cu3O7 directly revealed by femtosecond polarization spectroscopy
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/3/10.1063/1.2764237
10.1063/1.2764237
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