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Ravi Kumar - One of the best experts on this subject based on the ideXlab platform.
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interaction of laser cooled 87 rb atoms with higher order Modes of an optical nanoFibre
New Journal of Physics, 2015Co-Authors: Ravi Kumar, Vandna Gokhroo, Aili Maimaiti, Kieran Deasy, Mary C Frawley, C F Phelan, Sile Nic ChormaicAbstract:Optical nanoFibres are used to confine light to sub-wavelength regions and are very promising tools for the development of optical Fibre-based quantum networks using cold, neutral atoms. To date, experimental studies on atoms near nanoFibres have focussed on fundamental Fibre Mode interactions. In this work, we demonstrate the integration of a few-Mode optical nanoFibre into a magneto-optical trap for 87Rb atoms. The nanoFibre, with a waist diameter of ∼700 nm, supports both the fundamental and first group of higher order Modes (HOMs) and is used for atomic fluorescence and absorption studies. In general, light propagating in higher order Fibre Modes has a greater evanescent field extension around the waist in comparison with the fundamental Mode. By exploiting this behaviour, we demonstrate that the detected signal of fluorescent photons emitted from a cloud of cold atoms centred at the nanoFibre waist is larger if HOMs are also included. In particular, the signal from HOMs appears to be about six times larger than that obtained for the fundamental Mode. Absorption of on-resonance, HOM probe light by the laser-cooled atoms is also observed. These advances should facilitate the realization of atom trapping schemes based on HOM interference.
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interaction of laser cooled 87 rb atoms with higher order Modes of an optical nanofiber
arXiv: Atomic Physics, 2013Co-Authors: Ravi Kumar, Vandna Gokhroo, Aili Maimaiti, Kieran Deasy, Mary C Frawley, C F Phelan, Sile Nic ChormaicAbstract:Optical nanoFibres are used to confine light to subwavelength regions and are very promising tools for the development of optical Fibre-based quantum networks using cold, neutral atoms. To date, experimental studies on atoms near nanoFibres have focussed on fundamental Fibre Mode interactions. In this work, we demonstrate the integration of a few-Mode optical nanoFibre into a magneto-optical trap for $^{87}$Rb atoms. The nanoFibre, with a waist diameter of $\sim$700 nm, supports both the fundamental and first group of higher order Modes and is used for atomic fluorescence and absorption studies. In general, light propagating in higher order Fibre Modes has a greater evanescent field extension around the waist in comparison with the fundamental Mode. By exploiting this behaviour, we demonstrate that the detected signal of fluorescent photons emitted from a cloud of cold atoms centred at the nanoFibre waist is larger ($\sim$6 times) when higher order guided Modes are considered as compared to the fundamental Mode. Absorption of on-resonance, higher order Mode probe light by the laser-cooled atoms is also observed. These advances should facilitate the realisation of atom trapping schemes based on higher order Mode interference.
Sile Nic Chormaic - One of the best experts on this subject based on the ideXlab platform.
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interaction of laser cooled 87 rb atoms with higher order Modes of an optical nanoFibre
New Journal of Physics, 2015Co-Authors: Ravi Kumar, Vandna Gokhroo, Aili Maimaiti, Kieran Deasy, Mary C Frawley, C F Phelan, Sile Nic ChormaicAbstract:Optical nanoFibres are used to confine light to sub-wavelength regions and are very promising tools for the development of optical Fibre-based quantum networks using cold, neutral atoms. To date, experimental studies on atoms near nanoFibres have focussed on fundamental Fibre Mode interactions. In this work, we demonstrate the integration of a few-Mode optical nanoFibre into a magneto-optical trap for 87Rb atoms. The nanoFibre, with a waist diameter of ∼700 nm, supports both the fundamental and first group of higher order Modes (HOMs) and is used for atomic fluorescence and absorption studies. In general, light propagating in higher order Fibre Modes has a greater evanescent field extension around the waist in comparison with the fundamental Mode. By exploiting this behaviour, we demonstrate that the detected signal of fluorescent photons emitted from a cloud of cold atoms centred at the nanoFibre waist is larger if HOMs are also included. In particular, the signal from HOMs appears to be about six times larger than that obtained for the fundamental Mode. Absorption of on-resonance, HOM probe light by the laser-cooled atoms is also observed. These advances should facilitate the realization of atom trapping schemes based on HOM interference.
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interaction of laser cooled 87 rb atoms with higher order Modes of an optical nanofiber
arXiv: Atomic Physics, 2013Co-Authors: Ravi Kumar, Vandna Gokhroo, Aili Maimaiti, Kieran Deasy, Mary C Frawley, C F Phelan, Sile Nic ChormaicAbstract:Optical nanoFibres are used to confine light to subwavelength regions and are very promising tools for the development of optical Fibre-based quantum networks using cold, neutral atoms. To date, experimental studies on atoms near nanoFibres have focussed on fundamental Fibre Mode interactions. In this work, we demonstrate the integration of a few-Mode optical nanoFibre into a magneto-optical trap for $^{87}$Rb atoms. The nanoFibre, with a waist diameter of $\sim$700 nm, supports both the fundamental and first group of higher order Modes and is used for atomic fluorescence and absorption studies. In general, light propagating in higher order Fibre Modes has a greater evanescent field extension around the waist in comparison with the fundamental Mode. By exploiting this behaviour, we demonstrate that the detected signal of fluorescent photons emitted from a cloud of cold atoms centred at the nanoFibre waist is larger ($\sim$6 times) when higher order guided Modes are considered as compared to the fundamental Mode. Absorption of on-resonance, higher order Mode probe light by the laser-cooled atoms is also observed. These advances should facilitate the realisation of atom trapping schemes based on higher order Mode interference.
Mary C Frawley - One of the best experts on this subject based on the ideXlab platform.
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interaction of laser cooled 87 rb atoms with higher order Modes of an optical nanoFibre
New Journal of Physics, 2015Co-Authors: Ravi Kumar, Vandna Gokhroo, Aili Maimaiti, Kieran Deasy, Mary C Frawley, C F Phelan, Sile Nic ChormaicAbstract:Optical nanoFibres are used to confine light to sub-wavelength regions and are very promising tools for the development of optical Fibre-based quantum networks using cold, neutral atoms. To date, experimental studies on atoms near nanoFibres have focussed on fundamental Fibre Mode interactions. In this work, we demonstrate the integration of a few-Mode optical nanoFibre into a magneto-optical trap for 87Rb atoms. The nanoFibre, with a waist diameter of ∼700 nm, supports both the fundamental and first group of higher order Modes (HOMs) and is used for atomic fluorescence and absorption studies. In general, light propagating in higher order Fibre Modes has a greater evanescent field extension around the waist in comparison with the fundamental Mode. By exploiting this behaviour, we demonstrate that the detected signal of fluorescent photons emitted from a cloud of cold atoms centred at the nanoFibre waist is larger if HOMs are also included. In particular, the signal from HOMs appears to be about six times larger than that obtained for the fundamental Mode. Absorption of on-resonance, HOM probe light by the laser-cooled atoms is also observed. These advances should facilitate the realization of atom trapping schemes based on HOM interference.
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interaction of laser cooled 87 rb atoms with higher order Modes of an optical nanofiber
arXiv: Atomic Physics, 2013Co-Authors: Ravi Kumar, Vandna Gokhroo, Aili Maimaiti, Kieran Deasy, Mary C Frawley, C F Phelan, Sile Nic ChormaicAbstract:Optical nanoFibres are used to confine light to subwavelength regions and are very promising tools for the development of optical Fibre-based quantum networks using cold, neutral atoms. To date, experimental studies on atoms near nanoFibres have focussed on fundamental Fibre Mode interactions. In this work, we demonstrate the integration of a few-Mode optical nanoFibre into a magneto-optical trap for $^{87}$Rb atoms. The nanoFibre, with a waist diameter of $\sim$700 nm, supports both the fundamental and first group of higher order Modes and is used for atomic fluorescence and absorption studies. In general, light propagating in higher order Fibre Modes has a greater evanescent field extension around the waist in comparison with the fundamental Mode. By exploiting this behaviour, we demonstrate that the detected signal of fluorescent photons emitted from a cloud of cold atoms centred at the nanoFibre waist is larger ($\sim$6 times) when higher order guided Modes are considered as compared to the fundamental Mode. Absorption of on-resonance, higher order Mode probe light by the laser-cooled atoms is also observed. These advances should facilitate the realisation of atom trapping schemes based on higher order Mode interference.
Aili Maimaiti - One of the best experts on this subject based on the ideXlab platform.
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interaction of laser cooled 87 rb atoms with higher order Modes of an optical nanoFibre
New Journal of Physics, 2015Co-Authors: Ravi Kumar, Vandna Gokhroo, Aili Maimaiti, Kieran Deasy, Mary C Frawley, C F Phelan, Sile Nic ChormaicAbstract:Optical nanoFibres are used to confine light to sub-wavelength regions and are very promising tools for the development of optical Fibre-based quantum networks using cold, neutral atoms. To date, experimental studies on atoms near nanoFibres have focussed on fundamental Fibre Mode interactions. In this work, we demonstrate the integration of a few-Mode optical nanoFibre into a magneto-optical trap for 87Rb atoms. The nanoFibre, with a waist diameter of ∼700 nm, supports both the fundamental and first group of higher order Modes (HOMs) and is used for atomic fluorescence and absorption studies. In general, light propagating in higher order Fibre Modes has a greater evanescent field extension around the waist in comparison with the fundamental Mode. By exploiting this behaviour, we demonstrate that the detected signal of fluorescent photons emitted from a cloud of cold atoms centred at the nanoFibre waist is larger if HOMs are also included. In particular, the signal from HOMs appears to be about six times larger than that obtained for the fundamental Mode. Absorption of on-resonance, HOM probe light by the laser-cooled atoms is also observed. These advances should facilitate the realization of atom trapping schemes based on HOM interference.
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interaction of laser cooled 87 rb atoms with higher order Modes of an optical nanofiber
arXiv: Atomic Physics, 2013Co-Authors: Ravi Kumar, Vandna Gokhroo, Aili Maimaiti, Kieran Deasy, Mary C Frawley, C F Phelan, Sile Nic ChormaicAbstract:Optical nanoFibres are used to confine light to subwavelength regions and are very promising tools for the development of optical Fibre-based quantum networks using cold, neutral atoms. To date, experimental studies on atoms near nanoFibres have focussed on fundamental Fibre Mode interactions. In this work, we demonstrate the integration of a few-Mode optical nanoFibre into a magneto-optical trap for $^{87}$Rb atoms. The nanoFibre, with a waist diameter of $\sim$700 nm, supports both the fundamental and first group of higher order Modes and is used for atomic fluorescence and absorption studies. In general, light propagating in higher order Fibre Modes has a greater evanescent field extension around the waist in comparison with the fundamental Mode. By exploiting this behaviour, we demonstrate that the detected signal of fluorescent photons emitted from a cloud of cold atoms centred at the nanoFibre waist is larger ($\sim$6 times) when higher order guided Modes are considered as compared to the fundamental Mode. Absorption of on-resonance, higher order Mode probe light by the laser-cooled atoms is also observed. These advances should facilitate the realisation of atom trapping schemes based on higher order Mode interference.
C F Phelan - One of the best experts on this subject based on the ideXlab platform.
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interaction of laser cooled 87 rb atoms with higher order Modes of an optical nanoFibre
New Journal of Physics, 2015Co-Authors: Ravi Kumar, Vandna Gokhroo, Aili Maimaiti, Kieran Deasy, Mary C Frawley, C F Phelan, Sile Nic ChormaicAbstract:Optical nanoFibres are used to confine light to sub-wavelength regions and are very promising tools for the development of optical Fibre-based quantum networks using cold, neutral atoms. To date, experimental studies on atoms near nanoFibres have focussed on fundamental Fibre Mode interactions. In this work, we demonstrate the integration of a few-Mode optical nanoFibre into a magneto-optical trap for 87Rb atoms. The nanoFibre, with a waist diameter of ∼700 nm, supports both the fundamental and first group of higher order Modes (HOMs) and is used for atomic fluorescence and absorption studies. In general, light propagating in higher order Fibre Modes has a greater evanescent field extension around the waist in comparison with the fundamental Mode. By exploiting this behaviour, we demonstrate that the detected signal of fluorescent photons emitted from a cloud of cold atoms centred at the nanoFibre waist is larger if HOMs are also included. In particular, the signal from HOMs appears to be about six times larger than that obtained for the fundamental Mode. Absorption of on-resonance, HOM probe light by the laser-cooled atoms is also observed. These advances should facilitate the realization of atom trapping schemes based on HOM interference.
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interaction of laser cooled 87 rb atoms with higher order Modes of an optical nanofiber
arXiv: Atomic Physics, 2013Co-Authors: Ravi Kumar, Vandna Gokhroo, Aili Maimaiti, Kieran Deasy, Mary C Frawley, C F Phelan, Sile Nic ChormaicAbstract:Optical nanoFibres are used to confine light to subwavelength regions and are very promising tools for the development of optical Fibre-based quantum networks using cold, neutral atoms. To date, experimental studies on atoms near nanoFibres have focussed on fundamental Fibre Mode interactions. In this work, we demonstrate the integration of a few-Mode optical nanoFibre into a magneto-optical trap for $^{87}$Rb atoms. The nanoFibre, with a waist diameter of $\sim$700 nm, supports both the fundamental and first group of higher order Modes and is used for atomic fluorescence and absorption studies. In general, light propagating in higher order Fibre Modes has a greater evanescent field extension around the waist in comparison with the fundamental Mode. By exploiting this behaviour, we demonstrate that the detected signal of fluorescent photons emitted from a cloud of cold atoms centred at the nanoFibre waist is larger ($\sim$6 times) when higher order guided Modes are considered as compared to the fundamental Mode. Absorption of on-resonance, higher order Mode probe light by the laser-cooled atoms is also observed. These advances should facilitate the realisation of atom trapping schemes based on higher order Mode interference.