A heated vapor cell unit for DAVLL in atomic rubidium
Daniel J. McCarron, Ifan G. Hughes, Patrick Tierney, Simon L., Cornish
TL;DR
This paper presents a compact heated vapor cell unit designed for DAVLL in atomic rubidium, enhancing signal strength and gradient by optimizing magnetic field and temperature conditions.
Contribution
It introduces a novel heated vapor cell setup that improves DAVLL signal quality for rubidium D2 transitions, with detailed experimental characterization.
Findings
Increased DAVLL signal amplitude and gradient by an order of magnitude.
Optimal magnetic field and temperature conditions identified for better performance.
Enhanced detection sensitivity for weaker atomic transitions.
Abstract
The design and performance of a compact heated vapor cell unit for realizing a dichroic atomic vapor laser lock (DAVLL) for the D2 transitions in atomic rubidium is described. A 5 cm-long vapor cell is placed in a double-solenoid arrangement to produce the required magnetic field; the heat from the solenoid is used to increase the vapor pressure and correspondingly the DAVLL signal. We have characterized experimentally the dependence of important features of the DAVLL signal on magnetic field and cell temperature. For the weaker transitions both the amplitude and gradient of the signal are increased by an order of magnitude.
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