Optical & microwave phenomena as a research area investigates the generation, propagation, interaction, and detection of electromagnetic radiation spanning the optical (visible, ultraviolet, infrared) and microwave spectral ranges, with emphasis on their underlying physical mechanisms and cross-regime analogies. It encompasses coherent and incoherent light–matter interactions, waveguiding, scattering, nonlinear effects, resonances, and quantum electrodynamical aspects, as well as microwave cavity dynamics, dispersion, and near-field behavior. The field supports development of advanced spectroscopies, imaging modalities, communication and sensing technologies, and enables engineered materials and structures (e.g., photonic and microwave metamaterials) that tailor electromagnetic response across these frequency bands.
Passive mode-locked technology utilizes saturable absorbers' nonlinear absorption effect to regulate the cavity's loss and phase to generate mode-locked pulses. Graphene has a unique energy bandgap structure, a low absorption ...
Nanomaterials
Jul 4, 2023
0
138
With a flick of a switch, current technologies allow you to quickly change materials from being dark to light, or cold to hot, just by blocking or transmitting specific wavelengths. But now, inspired by squid skin, researchers ...
Nanomaterials
Jun 28, 2023
0
141
A study carried out by a research team from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), the Catalan Institute of Nanoscience and Nanotechnology (ICN2), University of Exeter Centre for Graphene Science, and TU Eindhoven ...
Nanophysics
Jun 15, 2023
0
159
In a study published online in Nano Letters, the team led by Prof. Li Chuanfeng and Dr. Xu Jinshi from the University of Science and Technology of China of the Chinese Academy of Sciences made progress in enhancing the fluorescence ...
Nanophysics
Jun 9, 2023
0
138
Things do not always go as one wants in reality. This is especially true in the world of light. However, a research team at POSTECH has successfully controlled "trions," a breakthrough toward developing what could ultimately ...
Nanophysics
May 15, 2023
0
106
Hot bodies emit heat in the form of electromagnetic radiation. Lightbulbs and night vision cameras are examples of technologies based on this physical phenomenon. Our daily experience tells us that heat is always directed ...
Nanophysics
Mar 30, 2023
1
278
A new study led by Dai Qing's team from the National Center for Nanoscience and Technology (NCNST) of the Chinese Academy of Sciences (CAS) and Javier Abajo from the Institute of Photonic Sciences (ICFO) in Spain has shown ...
Nanophysics
Feb 14, 2023
0
114
In a new approach to security that unites technology and art, EPFL researchers have combined silver nanostructures with polarized light to yield a range of brilliant colors, which can be used to encode messages.
Nanophysics
Feb 13, 2023
0
147
Van der Waals heterostructures integrated from various two-dimensional (2D) layered materials provide fundamental building blocks for optoelectronic devices with novel functionalities, such as photovoltaic solar cells, light ...
Nanophysics
Feb 3, 2023
0
207
Researchers at AMOLF, University of Pennsylvania, and City University of New York (CUNY) created a nanostructured surface capable of solving equations using light. This discovery opens exciting new opportunities in the field ...
Nanophysics
Jan 16, 2023
0
491
