In spite of such an increased width (∼100 MHz), we demonstrated stable magneto-optical trapping of Sr atoms. In this work we perform polarization spectroscopy of erbium atoms in a hollow cathode lamp (HCL) for the stabilization of a diode laser to the 401-nm transition. The collision broadening due to the Ne buffer gas increased the observed width of the signals in addition to the saturation effect. The dependences of the Lamb dip signal and the frequency modulation spectrum on the pump beam power were observed. A modulated power supply type C610 is available in both boxed. To stabilize the laser frequency to the atomic absorption line, we measured the saturated absorption spectrum of a Sr hollow-cathode lamp. Hollow cathode lamps consist of a cathode made from the element of interest, an anode and. The number of atoms obtained, 1 × 10 7, is sufficient to proceed to various ultracold Sr atoms experiments.ĪB - We develop a laser system with a wavelength of 461 nm and a power of 175 mW using a master oscillation power amplifier (MOPA) system and second-harmonic generation (SHG) via a KNbO 3 crystal. In spite of such an increased width (∼100 MHz), we demonstrated stable magneto-optical trapping of Sr atoms. The collision broadening due to the Ne buffer gas increased the observed width of the signals in addition to the saturation effect. Simple block diagrams of a single beam alternative current (a.c) and a double beam alternative current atomic absorption spectrophotometers are shown in Figure 1.The radiation emitted from a spectral line source (mostly hollow cathode lamps or less frequently electrodeless discharge lamps) is modulated electronically (pulsing of lamp current) or using a chopper (rotating metal disc) and. To stabilize the laser frequency to the atomic absorption line, we measured the saturated absorption spectrum of a Sr hollow-cathode lamp. The modulated light transmitted through the atomic absorption flame is con- verted to a correspondingly modulated. eliminate the effects of flame emission, it is necessary to modulate the. modulating the hollow cathode light source. N2 - We develop a laser system with a wavelength of 461 nm and a power of 175 mW using a master oscillation power amplifier (MOPA) system and second-harmonic generation (SHG) via a KNbO 3 crystal. efficiency of the hollow-cathode lamp depends on its geometry and the operating. T1 - A 461 nm laser system and hollow-cathode lamp spectroscopy for magneto-optical trapping of Sr atomsĬopyright 2012 Elsevier B.V., All rights reserved.
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