The Normal Vapor Pressure of Crystalline Iodine<sup>1</sup>

Gillespie, Louis J.; Fraser, Lewis H. D.

doi:10.1021/ja01302a050

Cited by 95 publications

(41 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is due to the dependence of pressure in the iodine cell on the iodine cell temperature. Gillespie and Fraser (1936) measured the normal vapor pressure of iodine as a function of temperature in the chamber. The dependence of pressure on the iodine temperature is shown in Table 4 and the plots are shown in Fig.…”

Section: Discussionmentioning

confidence: 99%

Comparison of 10 cm and 50 cm Long Iodine Cells in Iodine-Stabilized Diode Laser-Pumped Nd:YAG Laser at 532 nm

Potirak

Ranusawud²,

Limsuwan

et al. 2018

American Journal of Applied Sciences

View full text Add to dashboard Cite

An iodine-stabilized diode laser-pumped Nd:YAG laser system at 532 nm was developed at the National Institute of Metrology of Thailand (NIMT) for the first time in Thailand. Two iodine cells with the lengths of 10 and 50 cm were used for the comparison of frequency stability of Nd:YAG laser. The experiment was set for phase modulation spectroscopy. The Nd:YAG laser was locked to the a10 component of the R(56)32-0 transition of iodine molecule. The variation of wavelength with time and the frequency stability were carried out at various iodine cell temperatures of 20, 10, 5, 1, -1, -3 and -5°C. The results from the frequency stability measurements showed that the lowest Allan standard deviation value of 6.643×10−10 was obtained at -5°C for 50 cm long iodine cell. From this Allan standard deviation value, it can be concluded that the iodinestabilized diode laser-pumped Nd:YAG laser system at 532 nm developed in this study is acceptable to be used with a gauge block interferometer for the length calibration of the gauge block.

show abstract

Section: Discussionmentioning

confidence: 99%

Comparison of 10 cm and 50 cm Long Iodine Cells in Iodine-Stabilized Diode Laser-Pumped Nd:YAG Laser at 532 nm

Potirak

Ranusawud²,

Limsuwan

et al. 2018

American Journal of Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Therefore, the temperature of the cold finger must be tightly controlled. The linear variation of pressure as a function of temperature [14] is about 0.09 Pa/K at -15…”

Section: Temperature Stability Of the Elementsmentioning

confidence: 99%

Molecular laser stabilization for LISA

Halloin¹,

Acef

Argence³

et al. 2017

International Conference on Space Optics — ICSO 2008

View full text Add to dashboard Cite

The expected performance of LISA relies on two main technical challenges: the ability for the spacecrafts to precisely follow the free-flying masses and the outstanding precision of the phase shift measurement. This latter constraint requires frequency stabilized lasers and efficient numerical algorithms to account for the redundant, delayed noise propagation, thus cancelling laser phase noise by many orders of magnitude (TDI methods). Recently involved in the technical developments for LISA, the goal of our team at APC (France) is to contribute on these two subjects: frequency reference for laser stabilization and benchtop simulation of the interferometer. In the present design of LISA, two stages of laser stabilization are used (not accounting for the "post-processed" TDI algorithm): laser pre-stabilization on a frequency reference and lock on the ultra stable distance between spacecrafts (arm-locking). While the foreseen (and deeply studied) laser reference consists of a Fabry-Perot cavity, other techniques may be suitable for LISA or future metrology missions. In particular, locking to a molecular reference (namely iodine in the case of the LISA Nd:YAG laser) is an interesting alternative. It offers the required performance with very good long-term stability (absolute frequency reference) though the reference can be slightly tuned to account for arm-locking. This technique is currently being investigated by our team and optimized for LISA (compactness, vacuum compatibility, ease of use and initialization, etc.). A collaboration with a French laboratory (the SYRTE) had been started aiming to study a second improved technique consisting in inserting the iodine cell in a Fabry-Perot cavity. Ongoing results and prospects to increase the performance of the system are presented in the present article.

show abstract

“…Heating the cell at 150 0 C results in a vapour pressure of around ∼5 P using equation [24] log(P ) = −3512.830 T − 2.013log(T ) + 18.37971…”

Section: Pohl Interferometer Shown Inmentioning

confidence: 99%

Construction of an inexpensive molecular iodine spectrometer using a self-developed Pohl wavemeter around 670 nm wavelength

Barthwal¹,

Vudayagiri²

2015

Eur. J. Phys.

View full text Add to dashboard Cite

We describe construction of an inexpensive Iodine Spectrometer with a home made Iodine vapour cell and a self developed wavemeter based on Pohl Interferometer, around 670 nm wavelength.This can be easily realised in an undergraduate teaching laboratory to demonstrate use of a diode laser interferometry using a Pohl interferometer and measurement of wavelength using image processing techniques.Visible alternative to the IR diode lasers, 670 nm diode laser used here give chance to undergraduate students to perform comprehensive though illustrative atomic physics experiments including the Zeeman effect, the Hanle effect, Magneto Optic Rotation (MOR) effect with a little tweaking in the present spectrometer. The advantage of the spectrometer is its ease of construction with readily available optics, electronics, evacuation and glass blowing facilities and easy analysis algorithm to evaluate the wavelength. The self developed algorithm of raster scanning and circular averaging gives the researcher insight into the basics of image processing techniques. Resolution approaching 0.5 nm can be easily achieved using such simple setup.

show abstract

The Normal Vapor Pressure of Crystalline Iodine¹

Abstract: Vol. 58 coefficient calculations introduced by the use of inaccurate and inadequate thermal data. A subsequent communication will describe the application of these dilution measurements to some freezing point determinations recently made in this Laboratory.

Cited by 95 publications

References 0 publications

Comparison of 10 cm and 50 cm Long Iodine Cells in Iodine-Stabilized Diode Laser-Pumped Nd:YAG Laser at 532 nm

Comparison of 10 cm and 50 cm Long Iodine Cells in Iodine-Stabilized Diode Laser-Pumped Nd:YAG Laser at 532 nm

Molecular laser stabilization for LISA

Construction of an inexpensive molecular iodine spectrometer using a self-developed Pohl wavemeter around 670 nm wavelength

Contact Info

Product

Resources

About

The Normal Vapor Pressure of Crystalline Iodine1

Abstract: Vol. 58 coefficient calculations introduced by the use of inaccurate and inadequate thermal data. A subsequent communication will describe the application of these dilution measurements to some freezing point determinations recently made in this Laboratory.

Cited by 95 publications

References 0 publications

Comparison of 10 cm and 50 cm Long Iodine Cells in Iodine-Stabilized Diode Laser-Pumped Nd:YAG Laser at 532 nm

Comparison of 10 cm and 50 cm Long Iodine Cells in Iodine-Stabilized Diode Laser-Pumped Nd:YAG Laser at 532 nm

Molecular laser stabilization for LISA

Construction of an inexpensive molecular iodine spectrometer using a self-developed Pohl wavemeter around 670 nm wavelength

Contact Info

Product

Resources

About

The Normal Vapor Pressure of Crystalline Iodine¹