Related Experiment Video
Updated: Feb 6, 2026
07:38
Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape
Published on: January 8, 2014
9.3K
Micro-lensing-induced line shapes in a single-mode cold-atom-hollow-core-fiber interface
Optics Letters
|August 15, 2018
Summary
Altered transmission lines in cold atom-hollow fiber systems can overestimate atomic density. This is due to micro lensing and fiber mode selection, confirmed by Rydberg spectroscopy.
Area of Science:
- Atomic physics
- Quantum optics
- Fiber optics
Background:
- Cold atom systems are crucial for quantum technologies.
- Hollow-core fibers offer unique light-matter interaction platforms.
- Accurate measurement of atomic properties like optical depth is essential.
Purpose of the Study:
- To investigate transmission line shape alterations at cold-atom-hollow-core-fiber interfaces.
- To identify the physical mechanisms causing these alterations.
- To assess the impact on resonant optical depth measurements.
Main Methods:
- Experimental observation of transmission line shapes.
- Modeling of light propagation in inhomogeneous dispersive media.
- Experimental verification using Rydberg electromagnetically induced transparency (EIT).
Main Results:
- Observed strong transmission line shape alterations.
- Demonstrated significant overestimation of resonant optical depth at high atom densities.
- Attributed alterations to micro lensing and fiber mode selection.
Conclusions:
- Micro lensing and fiber mode selection significantly affect light propagation in cold-atom-hollow-core-fiber systems.
- These effects can lead to inaccurate measurements of atomic properties.
- The findings are crucial for precise optical depth determination in such systems.
Related Concept Videos
02:52VSEPR Theory and the Basic Shapes
85.2K
Overview of VSEPR Theory
85.2K
03:37Molecular Shape and Polarity
75.8K
Dipole Moment of a Molecule
75.8K
02:44Atomic Orbitals
44.2K
An atomic orbital represents the three-dimensional regions in an atom where an electron has the highest probability to reside. The radial distribution function indicates the total probability of finding an electron within the thin shell at a distance r from the nucleus. The atomic orbitals have distinct shapes which are determined by l, the angular momentum quantum number. The orbitals are often drawn with a boundary surface, enclosing densest regions of the cloud.
44.2K
01:18Molecular Shapes
62.2K
Molecules have characteristic shapes that are crucial for their function. The arrangement of various electron groups around the central atom dictates their molecular geometry. Electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between the electron pairs by maximizing the distance between them. The valence electrons form either bonding pairs, located primarily between bonded atoms, or lone pairs.
Two regions of electron density in a diatomic...
Two regions of electron density in a diatomic...
62.2K
02:10The Nucleosome Core Particle
14.5K
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins.
The paradox
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
The paradox
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
14.5K
02:04Protein-protein Interfaces
14.7K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
14.7K