scholarly journals Storage of a single photon in cold atoms confined within hollow core fiber

1899 ◽  
Author(s):  
D. Aghamalyan ◽  
D. Aghamalyan ◽  
Yu. Malakyan ◽  
Yu. Malakyan
Keyword(s):  
Cold Atoms ◽  
Single Photon ◽  
Hollow Core ◽  
Core Fiber

Nonlinear optics at the single-photon level inside a hollow core fiber

2011 ◽  
Author(s):  
Sebastian Hofferberth ◽  
Thibault Peyronel ◽  
Qiyu Liang ◽  
Alexander Zibrov ◽  
Vladan Vuletic ◽  
...  
Keyword(s):  
Nonlinear Optics ◽  
Single Photon ◽  
Hollow Core ◽  
Core Fiber

scholarly journals Rydberg excitation of cold atoms inside a hollow-core fiber

2017 ◽  
Vol 96 (4) ◽  
Author(s):  
Maria Langbecker ◽  
Mohammad Noaman ◽  
Niels Kjærgaard ◽  
Fetah Benabid ◽  
Patrick Windpassinger
Keyword(s):  
Cold Atoms ◽  
Hollow Core ◽  
Core Fiber

scholarly journals Monitoring Raman emission through state population in cold atoms confined inside a hollow-core fiber

2019 ◽  
Vol 27 (13) ◽  
pp. 17592 ◽  
Author(s):  
Taehyun Yoon ◽  
Zhenghao Ding ◽  
Jeremy Flannery ◽  
Fereshteh Rajabi ◽  
Michal Bajcsy
Keyword(s):  
Cold Atoms ◽  
Hollow Core ◽  
State Population ◽  
Core Fiber

scholarly journals Loading Dynamics of Cold Atoms into a Hollow-Core Photonic Crystal Fiber

Fibers ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 28
Author(s):  
Yu Wang ◽  
Shijie Chai ◽  
Mingjie Xin ◽  
Wui Seng Leong ◽  
Zilong Chen ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Free Space ◽  
Cold Atoms ◽  
Numerical Study ◽  
Trapping Potential ◽  
Hollow Core ◽  
Crystal Fiber ◽  
Loading Process ◽  
Core Fiber

Cold atoms trapped and guided in hollow-core photonic crystal fibers provide a scalable diffraction-free setting for atom–light interactions for quantum technologies. However, due to the mismatch of the depth and spatial extension of the trapping potential from free space to the fiber, the number of cold atoms in the fiber is mainly determined by the loading process from free space to waveguide confinement. Here, we provide a numerical study of the loading dynamics of cold atoms into a hollow-core photonic crystal fiber. We use the Monte Carlo method to simulate the trajectories of an ensemble of cold atoms from free space trapping potential to optical potential inside a hollow-core fiber and calculate the temperature, loading efficiency, and geometry of the ensemble. We also study the noise sources that cause heating and a loss of atoms during the process. Our result could be used to design and optimize the loading process of cold atoms into a hollow-core fiber for cold atom experiments.

scholarly journals Highly controlled optical transport of cold atoms into a hollow-core fiber

2018 ◽  
Vol 20 (8) ◽  
pp. 083038 ◽  
Author(s):  
Maria Langbecker ◽  
Ronja Wirtz ◽  
Fabian Knoch ◽  
Mohammad Noaman ◽  
Thomas Speck ◽  
...  
Keyword(s):  
Cold Atoms ◽  
Hollow Core ◽  
Core Fiber ◽  
Optical Transport

scholarly journals Liquid level sensor based on dynamic Fabry–Perot interferometers in processed capillary fiber

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Pablo Roldán-Varona ◽  
Rosa Ana Pérez-Herrera ◽  
Luis Rodríguez-Cobo ◽  
Luis Reyes-González ◽  
Manuel López-Amo ◽  
...  
Keyword(s):  
Optical Fiber Sensor ◽  
Liquid Level ◽  
Hollow Core ◽  
Immiscible Liquids ◽  
Fabry Perot ◽  
Detection Mode ◽  
Level Sensor ◽  
Core Fiber ◽  
Liquid Level Sensor ◽  
Silica Capillary

AbstractIn this work, a novel optical fiber sensor capable of measuring both the liquid level and its refractive index is designed, manufactured and demonstrated through simulations and experimentally. For this, a silica capillary hollow-core fiber is used. The fiber, with a sensing length of 1.55 mm, has been processed with a femtosecond laser, so that it incorporates four holes in its structure. In this way, the liquid enters the air core, and it is possible to perform the sensing through the Fabry–Perot cavities that the liquid generates. The detection mode is in reflection. With a resolution of 4 μm (liquid level), it is in the state of the art of this type of sensor. The system is designed so that in the future it will be capable of measuring the level of immiscible liquids, that is, liquids that form stratified layers. It can be useful to determine the presence of impurities in tanks.

scholarly journals Vacuum Ultraviolet Absorption Spectroscopy Analysis of Breath Acetone Using a Hollow Optical Fiber Gas Cell

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 478
Author(s):  
Yudai Kudo ◽  
Saiko Kino ◽  
Yuji Matsuura
Keyword(s):  
Body Fat ◽  
Vacuum Ultraviolet ◽  
Exhaled Breath ◽  
Hollow Core ◽  
Gas Cell ◽  
Human Breath ◽  
Healthy Human ◽  
Acetone Concentration ◽  
Core Fiber ◽  
Breath Acetone

Human breath is a biomarker of body fat metabolism and can be used to diagnose various diseases, such as diabetes. As such, in this paper, a vacuum ultraviolet (VUV) spectroscopy system is proposed to measure the acetone in exhaled human breath. A strong absorption acetone peak at 195 nm is detected using a simple system consisting of a deuterium lamp source, a hollow-core fiber gas cell, and a fiber-coupled compact spectrometer corresponding to the VUV region. The hollow-core fiber functions both as a long-path and an extremely small-volume gas cell; it enables us to sensitively measure the trace components of exhaled breath. For breath analysis, we apply multiple regression analysis using the absorption spectra of oxygen, water, and acetone standard gas as explanatory variables to quantitate the concentration of acetone in breath. Based on human breath, we apply the standard addition method to obtain the measurement accuracy. The results suggest that the standard deviation is 0.074 ppm for healthy human breath with an acetone concentration of around 0.8 ppm and a precision of 0.026 ppm. We also monitor body fat burn based on breath acetone and confirm that breath acetone increases after exercise because it is a volatile byproduct of lipolysis.

scholarly journals Transmission of 61 C-band Channels over Record Distance of Hollow-Core-Fiber with L-band Interferers

2020 ◽  
pp. 1-1
Author(s):  
Antonino Nespola ◽  
Stefano Straullu ◽  
Thomas D. Bradley ◽  
Kerrianne Harrington ◽  
Hesham Sakr ◽  
...  
Keyword(s):  
Hollow Core ◽  
Core Fiber ◽  
L Band
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