We present a position- and time-dependent optical force theory for optomechanics of dispersive 3D photonic materials and devices. The theory applies to media including material interfaces, waveguides, and general photonic crystal structures. The theory enables calculation of the dynamical state of the coupled field-material system and the interference of this state with other excitations of the material, such as surface acoustic waves or phonons. As an example, we present computer simulations of energy and momentum flows through a silicon crystal with anti-reflective structured interfaces. Using commercially available simulation tools, the theory can be applied to analyze optical forces in complex photonic materials and devices.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OE.458252 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Deep-Ultraviolet AlN Metalens with Imaging and Ultrafast Laser Microfabrication Applications.
Nano Lett
January 2025
Institute of Electronics, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan.
Deep-ultraviolet (DUV) light is essential for applications including fabrication, molecular research, and biomedical imaging. Compact metalenses have the potential to drive further innovation in these fields, provided they utilize a material platform that is cost-effective, durable, and scalable. In this work, we present aluminum nitride (AlN) metalenses as an efficient solution for DUV applications.
View Article and Find Full Text PDFSelective Undercut of Undoped Optical Membranes for Spin-Active Color Centers in 4H- Silicon Carbide.
ACS Nano
January 2025
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States.
Silicon carbide (SiC) is a semiconductor used in quantum information processing, microelectromechanical systems, photonics, power electronics, and harsh environment sensors. However, its high-temperature stability, high breakdown voltage, wide bandgap, and high mechanical strength are accompanied by a chemical inertness, which makes complex micromachining difficult. Photoelectrochemical (PEC) etching is a simple, rapid means of wet processing SiC, including the use of dopant-selective etch stops that take advantage of the mature SiC homoepitaxy.
View Article and Find Full Text PDFDirect Observation of All-Flat Bands Phononic Metamaterials.
Phys Rev Lett
December 2024
University of Connecticut, University of Connecticut, School of Mechanical, Aerospace, and Manufacturing Engineering, Storrs, Connecticut 06269, USA and Institute of Materials Science, Storrs, Connecticut 06269, USA.
Flat lines within a band structure represent constant frequency bands for all momentum values (i.e., they maintain zero group velocity for all wave numbers).
View Article and Find Full Text PDFTwo-Dimensional Magnetic Exciton Polariton with Strongly Coupled Atomic and Photonic Anisotropies.
Phys Rev Lett
December 2024
University of Michigan, Department of Physics, Ann Arbor, Michigan 48109, USA.
Anisotropy is a fundamental property of both material and photonic systems. The interplay between material and photonic anisotropies, however, has hardly been explored due to the vastly different length scales. Here we demonstrate exciton polaritons in a 2D antiferromagnet, CrSBr, coupled with an anisotropic photonic crystal cavity, where the spin, atomic, and photonic anisotropies are strongly correlated.
View Article and Find Full Text PDFModulation of Electrochemical Reactions through External Stimuli: Applications in Oxygen Evolution Reaction and Beyond.
ACS Nano
January 2025
Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore.
Electrochemical water splitting is a promising method for generating green hydrogen gas, offering a sustainable approach to addressing global energy challenges. However, the sluggish kinetics of the anodic oxygen evolution reaction (OER) poses a great obstacle to its practical application. Recently, increasing attention has been focused on introducing various external stimuli to modify the OER process.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!