Journal ArticleDOI
Energy conservation at an optical temporal boundary
K. B. Tan,H. M. Lu,W. C. Zuo +2 more
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Here a new energy space-time scheme is proposed for an optical pulse in a medium with the temporal boundary and it is demonstrated that a more general conservation of energy is validated in a time domain for the ideal scenario.Abstract:
The temporal boundary appears as a novel phenomenon in a wide range of optical devices and systems, such as the photonic crystal, metamaterials, optical microcavity, and modulator, with a dynamic medium whose refractive index changes across the boundary. However, the validation of electromagnetic energy conservation was considered in violation for the optical temporal boundary traditionally. Here a new energy space-time scheme is proposed for an optical pulse in a medium with the temporal boundary. From the Poynting theory, the electromagnetic energy is investigated based on a one-dimensional model under the assumption of impedance matching. Furthermore, the results demonstrate that a more general conservation of energy is validated in a time domain for the ideal scenario. A new invariant quantity of spatial energy in the optical medium is further obtained. The numerical results are in agreement with the theory of the temporal boundary. The conservative process of energy transportation across the optical temporal boundary is clarified and confirmed.read more
Citations
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Die Grundlage der allgemeinen Relativitätstheorie
TL;DR: The speziellen Relativitatstheorie liegt folgendes Postulat zugrunde, welchem auch durch die Galilei-Newtonsche Mechanik Genuge geleistet wird: Wird ein Koordinatensystem K so gewahlt, das in bezug auf dasselbe die physikalischen Gesetze in ihrer einfachsten Form gelten, so gelten dieselben Gesetzes auch in Bez
Journal Article
Stopping Light All-Optically
Mehmet Fatih Yanik,Shanhui Fan +1 more
TL;DR: It is shown that light pulses can be stopped and stored coherently, with an all-optical adiabatic and reversible pulse bandwidth compression process that overcomes the fundamental bandwidth-delay constraint in optics and can generate arbitrarily small group speeds for any light pulse with a given bandwidth.
Journal ArticleDOI
Generalized temporal transfer matrix method: a systematic approach to solving electromagnetic wave scattering in temporally stratified structures
TL;DR:
Journal ArticleDOI
Temporal boundaries in electromagnetic materials
Jonathan Gratus,Jonathan Gratus,Rebecca Seviour,Paul Kinsler,Paul Kinsler,Paul Kinsler,Dino A. Jaroszynski +6 more
TL;DR: In this article, the authors investigate the behavior of temporal boundaries and show that traditional approaches that assume constant dielectric properties, with loss incorporated as an imaginary part, necessarily lead to unphysical solutions.
Journal ArticleDOI
Light scattering at a temporal boundary in a Lorentz medium.
TL;DR: In this paper, the authors apply a more general model of a Lorentz medium with rapidly changing density of its structural elements (oscillators) or their resonant frequency to determine the realms of applicability of the conventional temporal boundary model.
References
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Journal ArticleDOI
Cavity Optomechanics
TL;DR: The field of cavity optomechanics explores the interaction between electromagnetic radiation and nano-or micromechanical motion as mentioned in this paper, which explores the interactions between optical cavities and mechanical resonators.
Journal ArticleDOI
Cavity Opto-Mechanics
TL;DR: In this article, the consequences of back-action of light confined in whispering-gallery dielectric micro-cavities, and presents a unified treatment of its two manifestations: namely the parametric instability (mechanical amplification and oscillation) and radiation pressure backaction cooling.
Book
Die Grundlage der allgemeinen Relativitätstheorie
TL;DR: The speziellen Relativitatstheorie liegt folgendes Postulat zugrunde, welchem auch durch die Galilei-Newtonsche Mechanik Genuge geleistet wird: Wird ein Koordinatensystem K so gewahlt, das in bezug auf dasselbe die physikalischen Gesetze in ihrer einfachsten Form gelten, so gelten dieselben Gesetzes auch in Bez
Journal ArticleDOI
Spatiotemporal light control with active metasurfaces
TL;DR: What is required to create high-performance spatiotemporal metasurfaces is discussed and what new applications and physics they have to offer are analyzed.
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