Heat-Pipe Oven: A New, Well-Defined Metal Vapor Device for Spectroscopic Measurements

Abstract

A new, well-defined metal vapor device called the heat-pipe oven has been developed on the basis of the heat pipe, a heat conductive element designed by Grover and his co-workers in Los Alamos. It continuously generates homogeneous vapors of well-defined temperature, pressure, and optical path length. The vapor is confined by inert gas boundaries which remove the window problem and allow a direct pressure measurement without relying on vapor pressure curves. Due to the continuous evaporation and condensation the vapor purifies itself during operation.

Spectroscopic study of the 61Πustate in Li2

“…The Li 2 molecules were produced by heating solid lithium (2 cm 3 ) of natural isotopic composition in a linear heat-pipe oven, 80 cm long and with 3 cm inner diameter. About 4 mbar of helium buffer gas was admitted to the oven before heating it to approximately 1050 K. Under these conditions the oven did not operate in a heat pipe regime [6] but instead contained a mixture of helium and metal vapour in the central zone.…”

High-flux two-dimensional magneto-optical-trap source for cold lithium atoms

“…The laser system consists of a single master oscillator and four injection-locked slave lasers, all operating a 120 mW Mitshubishi ML101J27 diode heated to 70 C. The master oscillator is a home-built externalcavity diode laser (ECDL) [35], frequency stabilized using saturated absorption spectroscopy in a 6 Li heat pipe [36]. The power from the master laser is distributed over six beams, which can be independently shifted in frequency using ISOMET 1205-C acousto-optic modulators (AOM's).…”

Strong‐Field Coherent Control

“…Initially we designed an oven with a glass cell containing the Na, but after some time the Na reacted with the glass. After this, we built a heat pipe oven [52][53][54], using a crossed heat pipe design [55]. The heat pipe oven design allows us to have high pressures of Na while preventing the Na from reaching the optical windows.…”