Rolled-Up Semiconductor Tube Optical Cavities

2017 ◽  
pp. 183-200
Author(s):  
Pablo Bianucci ◽  
M. Hadi Tavakoli Dastjerdi ◽  
Mehrdad Djavid ◽  
Zetian Mi
Keyword(s):  
Optical Cavities

Phase-Shift Parameters and Small Vibrations in Resonant Optical Cavities

1987 ◽  
Author(s):  
D. M. Ross ◽  
C. Brune ◽  
C. D. Marrs
Keyword(s):  
Phase Shift ◽  
Optical Cavities

Microcavities

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Quantum Wells ◽  
Strong Light ◽  
Fundamental Physics ◽  
Postgraduate Students ◽  
Optical Cavities ◽  
Semiconductor Quantum Wells ◽  
Exciton Polaritons ◽  
Different Types ◽  
Potential Applications ◽  
Experimental Findings

Both rich fundamental physics of microcavities and their intriguing potential applications are addressed in this book, oriented to undergraduate and postgraduate students as well as to physicists and engineers. We describe the essential steps of development of the physics of microcavities in their chronological order. We show how different types of structures combining optical and electronic confinement have come into play and were used to realize first weak and later strong light–matter coupling regimes. We discuss photonic crystals, microspheres, pillars and other types of artificial optical cavities with embedded semiconductor quantum wells, wires and dots. We present the most striking experimental findings of the recent two decades in the optics of semiconductor quantum structures. We address the fundamental physics and applications of superposition light-matter quasiparticles: exciton-polaritons and describe the most essential phenomena of modern Polaritonics: Physics of the Liquid Light. The book is intended as a working manual for advanced or graduate students and new researchers in the field.

scholarly journals Intermolecular interactions in optical cavities: An ab initio QED study

2021 ◽  
Vol 154 (9) ◽  
pp. 094113
Author(s):  
Tor S. Haugland ◽  
Christian Schäfer ◽  
Enrico Ronca ◽  
Angel Rubio ◽  
Henrik Koch
Keyword(s):  
Ab Initio ◽  
Intermolecular Interactions ◽  
Optical Cavities

scholarly journals Advanced Scheme to Generate MHz, Fully Coherent FEL Pulses at nm Wavelength

2021 ◽  
Vol 11 (13) ◽  
pp. 6058
Author(s):  
Georgia Paraskaki ◽  
Sven Ackermann ◽  
Bart Faatz ◽  
Gianluca Geloni ◽  
Tino Lang ◽  
...  
Keyword(s):  
Repetition Rate ◽  
High Harmonic ◽  
High Repetition Rate ◽  
Optical Cavities ◽  
Electron Bunches ◽  
High Repetition ◽  
Average Brightness ◽  
Technical Requirements ◽  
Harmonic Content ◽  
Unique Approach

Current FEL development efforts aim at improving the control of coherence at high repetition rate while keeping the wavelength tunability. Seeding schemes, like HGHG and EEHG, allow for the generation of fully coherent FEL pulses, but the powerful external seed laser required limits the repetition rate that can be achieved. In turn, this impacts the average brightness and the amount of statistics that experiments can do. In order to solve this issue, here we take a unique approach and discuss the use of one or more optical cavities to seed the electron bunches accelerated in a superconducting linac to modulate their energy. Like standard seeding schemes, the cavity is followed by a dispersive section, which manipulates the longitudinal phase space of the electron bunches, inducing longitudinal density modulations with high harmonic content that undergo the FEL process in an amplifier placed downstream. We will discuss technical requirements for implementing these setups and their operation range based on numerical simulations.

Engineering the sensitivity of macroscopic physical systems to variations in the fine-structure constant

2021 ◽  
Author(s):  
Beata Zjawin ◽  
Marcin Bober ◽  
Roman Ciuryło ◽  
Daniel Lisak ◽  
Michał Zawada ◽  
...  
Keyword(s):  
Fine Structure ◽  
Optical Cavity ◽  
Structure Constant ◽  
Relativistic Effects ◽  
Fine Structure Constant ◽  
Sensitivity Factor ◽  
Optical Cavities ◽  
Physical Systems ◽  
Heavy Atoms ◽  
Nuclear Transitions

Abstract Experiments aimed at searching for variations in the fine-structure constant α are based on spectroscopy of transitions in microscopic bound systems, such as atoms and ions, or resonances in optical cavities. The sensitivities of these systems to variations in α are typically on the order of unity and are fixed for a given system. For heavy atoms, highly charged ions and nuclear transitions, the sensitivity can be increased by benefiting from the relativistic effects and favorable arrangement of quantum states. This article proposes a new method for controlling the sensitivity factor of macroscopic physical systems. Specific concepts of optical cavities with tunable sensitivity to α are described. These systems show qualitatively different properties from those of previous studies of the sensitivity of macroscopic systems to variations in α, in which the sensitivity was found to be fixed and fundamentally limited to an order of unity. Although possible experimental constraints attainable with the specific optical cavity arrangements proposed in this article do not yet exceed the present best constraints on α variations, this work paves the way for developing new approaches to searching for variations in the fundamental constants of physics.

Transparent boundary conditions for discretized non-Hermitian eigenvalue problems

2021 ◽  
pp. 2150138
Author(s):  
Jonathan Heinz ◽  
Miroslav Kolesik
Keyword(s):  
Quantum Mechanics ◽  
Eigenvalue Problem ◽  
Boundary Conditions ◽  
Eigenvalue Problems ◽  
Complex Scaling ◽  
Transparent Boundary Conditions ◽  
Drastic Reduction ◽  
Optical Cavities ◽  
Energy Dependent ◽  
Lossy Waveguides

A method is presented for transparent, energy-dependent boundary conditions for open, non-Hermitian systems, and is illustrated on an example of Stark resonances in a single-particle quantum system. The approach provides an alternative to external complex scaling, and is applicable when asymptotic solutions can be characterized at large distances from the origin. Its main benefit consists in a drastic reduction of the dimesnionality of the underlying eigenvalue problem. Besides application to quantum mechanics, the method can be used in other contexts such as in systems involving unstable optical cavities and lossy waveguides.

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