Indian Journal of Pure and Applied Physics

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Absorption Spectroscopic Studies of Chip-scale Rubidium Atomic Vapour Cells in a Compact 3D Printed Magneto-Optic Package


Affiliations
1 Laboratory for Electro-Optics Systems, Indian SpaceResearch Organization, Bengaluru 560 094, India., India
 

This paper describes the design, development and spectroscopic studies of chip-scale Rb atomic vapour cell developed in the authors’ laboratory. A compact magneto-optic package for the chip-scale Rb cell comprising of TEC integrated VCSEL source, silicon p-i-n photo detector and a hemispherical lens for light collimation is reported. The package is manufactured using commercial 3D printing technology. A PC based data acquisition system has been developed to provide real time analysis of the captured spectral data of the Rb chip by laser interrogation of the D1 hyperfine transition. Doppler broadened absorption resonance lines of technological importance have been recorded for transitions 85 Rb( 2 S1/2F=2→2 P1/2F′=2,3) having absorption amplitude 1.24 V and FWHM 850 MHz and 87 Rb( 2 S1/2F=1 →2 P1/2F′=1,2) has absorption amplitude 0.47 V and FWHM 567 MHz at cell temperature of 70 o C. Further, the chip-scale Rb atomic cell in the magneto-optical package will be explored to develop atomic sensors for space applications.

Keywords

Chip-Scale Vapour Cell, Absorption Spectroscopy, 3D Printing, Tunable Diode Laser Spectroscopy.
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  • Absorption Spectroscopic Studies of Chip-scale Rubidium Atomic Vapour Cells in a Compact 3D Printed Magneto-Optic Package

Abstract Views: 146  |  PDF Views: 92

Authors

M S Giridhar
Laboratory for Electro-Optics Systems, Indian SpaceResearch Organization, Bengaluru 560 094, India., India
S P Karanth
Laboratory for Electro-Optics Systems, Indian SpaceResearch Organization, Bengaluru 560 094, India., India
Akshaya .
Laboratory for Electro-Optics Systems, Indian SpaceResearch Organization, Bengaluru 560 094, India., India
S Elumalai
Laboratory for Electro-Optics Systems, Indian SpaceResearch Organization, Bengaluru 560 094, India., India
K V Sriram
Laboratory for Electro-Optics Systems, Indian SpaceResearch Organization, Bengaluru 560 094, India., India

Abstract


This paper describes the design, development and spectroscopic studies of chip-scale Rb atomic vapour cell developed in the authors’ laboratory. A compact magneto-optic package for the chip-scale Rb cell comprising of TEC integrated VCSEL source, silicon p-i-n photo detector and a hemispherical lens for light collimation is reported. The package is manufactured using commercial 3D printing technology. A PC based data acquisition system has been developed to provide real time analysis of the captured spectral data of the Rb chip by laser interrogation of the D1 hyperfine transition. Doppler broadened absorption resonance lines of technological importance have been recorded for transitions 85 Rb( 2 S1/2F=2→2 P1/2F′=2,3) having absorption amplitude 1.24 V and FWHM 850 MHz and 87 Rb( 2 S1/2F=1 →2 P1/2F′=1,2) has absorption amplitude 0.47 V and FWHM 567 MHz at cell temperature of 70 o C. Further, the chip-scale Rb atomic cell in the magneto-optical package will be explored to develop atomic sensors for space applications.

Keywords


Chip-Scale Vapour Cell, Absorption Spectroscopy, 3D Printing, Tunable Diode Laser Spectroscopy.

References