A superconducting Fabry-Perot cavity for trapping cold molecules

Fatemeh S. Tahsildaran F; Manish Vashishta; Amir Hossein Farahbod; Rasoul Malekfar; Pavle Djuricanin; Katsunari Enomoto; Takamasa Momose

doi:10.1088/1361-6455/abcb51

A superconducting Fabry-Perot cavity for trapping cold molecules

Fatemeh S. Tahsildaran F, Manish Vashishta, Amir Hossein Farahbod, Rasoul Malekfar, Pavle Djuricanin, Katsunari Enomoto, Takamasa Momose^*

^*Corresponding author for this work

Program of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

A superconducting Fabry-Perot microwave cavity for a molecular trap was designed, constructed and characterized. The cavity was designed to create intense microwave fields that are sufficient to trap cold polar molecules by the AC Stark force. By coating the mirror surfaces with a superconducting material, an unloaded quality factor of up to 1.1 × 106 at 24.087 GHz was achieved at a temperature of 2.24 K. The field strength of 1.06 MV m-1 obtained for a TEM02 transverse mode with an input power of 10 W is sufficiently intense to trap ammonia molecules at a temperature of 85 mK, which is achievable by a conventional Stark molecular decelerator. We have also implemented an ion optics assembly for sensitive detection of molecules inside the microwave cavity by resonance enhanced multi-photon ionization.

Original language	English
Article number	015101
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	54
Issue number	1
DOIs	https://doi.org/10.1088/1361-6455/abcb51
State	Published - 2020/01/16

Keywords

Fabry-Perot
cold molecules
microwave trap
superconducting

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Condensed Matter Physics

Access to Document

10.1088/1361-6455/abcb51

Cite this

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title = "A superconducting Fabry-Perot cavity for trapping cold molecules",

abstract = "A superconducting Fabry-Perot microwave cavity for a molecular trap was designed, constructed and characterized. The cavity was designed to create intense microwave fields that are sufficient to trap cold polar molecules by the AC Stark force. By coating the mirror surfaces with a superconducting material, an unloaded quality factor of up to 1.1 × 106 at 24.087 GHz was achieved at a temperature of 2.24 K. The field strength of 1.06 MV m-1 obtained for a TEM02 transverse mode with an input power of 10 W is sufficiently intense to trap ammonia molecules at a temperature of 85 mK, which is achievable by a conventional Stark molecular decelerator. We have also implemented an ion optics assembly for sensitive detection of molecules inside the microwave cavity by resonance enhanced multi-photon ionization.",

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AU - Tahsildaran F, Fatemeh S.

AU - Vashishta, Manish

AU - Farahbod, Amir Hossein

AU - Malekfar, Rasoul

AU - Djuricanin, Pavle

AU - Enomoto, Katsunari

AU - Momose, Takamasa

PY - 2020/1/16

Y1 - 2020/1/16

N2 - A superconducting Fabry-Perot microwave cavity for a molecular trap was designed, constructed and characterized. The cavity was designed to create intense microwave fields that are sufficient to trap cold polar molecules by the AC Stark force. By coating the mirror surfaces with a superconducting material, an unloaded quality factor of up to 1.1 × 106 at 24.087 GHz was achieved at a temperature of 2.24 K. The field strength of 1.06 MV m-1 obtained for a TEM02 transverse mode with an input power of 10 W is sufficiently intense to trap ammonia molecules at a temperature of 85 mK, which is achievable by a conventional Stark molecular decelerator. We have also implemented an ion optics assembly for sensitive detection of molecules inside the microwave cavity by resonance enhanced multi-photon ionization.

AB - A superconducting Fabry-Perot microwave cavity for a molecular trap was designed, constructed and characterized. The cavity was designed to create intense microwave fields that are sufficient to trap cold polar molecules by the AC Stark force. By coating the mirror surfaces with a superconducting material, an unloaded quality factor of up to 1.1 × 106 at 24.087 GHz was achieved at a temperature of 2.24 K. The field strength of 1.06 MV m-1 obtained for a TEM02 transverse mode with an input power of 10 W is sufficiently intense to trap ammonia molecules at a temperature of 85 mK, which is achievable by a conventional Stark molecular decelerator. We have also implemented an ion optics assembly for sensitive detection of molecules inside the microwave cavity by resonance enhanced multi-photon ionization.

KW - Fabry-Perot

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A superconducting Fabry-Perot cavity for trapping cold molecules

Abstract

Keywords

ASJC Scopus subject areas

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