Ion acceleration in the evacuated drift-tube geometry
The effect of varying the space-charge-limited current on the ion acceleration in the evacuated drift-tube geometry with no external magnetic field has been experimentally tested. The time-resolved cu...
The effect of varying the space-charge-limited current on the ion acceleration in the evacuated drift-tube geometry with no external magnetic field has been experimentally tested. The time-resolved cu...
Seebeck measurements of rf sputtered nickel-chromium films
Thin films of nickel-chromium alloys (10% chromium) were produced by the radio-frequency (rf) sputtering technique. The Seebeck coefficient of these films was measured with a constant 10 °C differ...
Thin films of nickel-chromium alloys (10% chromium) were produced by the radio-frequency (rf) sputtering technique. The Seebeck coefficient of these films was measured with a constant 10 °C differ...
Self-pulsation in the output intensity and spectrum of GaAs-AlGaAs cw diode lasers coupled to a frequency-selective external optical cavity
J. Appl. Phys. 48, 2083 (1977); doi:10.1063/1.323922
Issue Date: May 1977
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The laser emission of a cw diode laser coupled to an external cavity is self-pulsing at a frequency of 3–30 MHz, that is, two orders of magnitude lower than the resonance frequencies of the external cavity (typically 0.5 m long). The low-frequency self-pulsation is also present with a wavelength-selective external cavity using a grating as a reflector that narrows the laser emission to a single longitudinal mode. This paper describes some of the characteristics of the self-pulsation such as the pulse shape, the frequency dependence, the shift of the wavelength of the lasing mode during a pulse, and their dependence on the wavelength selection by the grating.
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