Optics

Special Issue

Optical Bound States in the Continuum

  • Submission Deadline: 1 December 2025
  • Status: Open for Submission
  • Lead Guest Editor: Enduo Gao
About This Special Issue
The BICs represent a significant and intriguing phenomenon within the realm of photonics and optical physics. These states are characterized by their ability to confine light within a structure despite being part of the radiative continuum, which means they do not decay or radiate energy as expected from typical resonant modes.
Significance of Optical BICs:
1. Fundamental Physics: BICs challenge and expand our understanding of light propagation and wave mechanics. They demonstrate that certain modes can exist within the continuum without radiating, which has implications for how we think about wave-matter interactions.
2. High-Q Resonators: BICs can lead to the creation of resonators with extremely high quality (Q) factors, which are crucial for applications requiring high sensitivity, such as in sensing and spectroscopy. The infinite Q factor of BICs means that they can store light for an extended period without energy loss.
3. Nonlinear Optics: In nonlinear optical systems, BICs can enhance light-matter interactions, leading to stronger nonlinear effects. This is particularly important for applications like frequency conversion and the generation of entangled photon pairs.
Relevance in the Current Academic Context:
1. Metamaterials and Photonic Crystals: With the advent of metamaterials and photonic crystals, there is a growing interest in engineering materials with tailored optical properties. BICs are a key area of study in this context, as they offer a pathway to control light in unprecedented ways.
2. Nanophotonics and Integrated Optics: As technology continues to shrink, the study of BICs becomes increasingly relevant for nanophotonics and integrated optical circuits. Understanding how to harness BICs at these scales could lead to more efficient and compact optical devices.
3. Energy Harvesting and Conversion: BICs can be used to improve the efficiency of energy harvesting and conversion processes, such as in solar cells or thermophotovoltaics, by enhancing the absorption or emission of light.
In summary, the study of optical bound states in the continuum is not only a fundamental scientific pursuit but also has practical implications for a wide range of technologies. Its relevance in the current academic context is underscored by the drive to develop new materials, devices, and systems that can manipulate light more effectively.
The primary goal of this special issue is to optical bound states in the continuum. We invite contributions that explore the optical characteristics of BICs in different materials, with particular interest in [Merging BICs.
Through this special issue, we aim to expected outcome or contribution of the special issue to the field. We welcome researchers from various disciplines to provide interdisciplinary perspectives on the optical bound states in the continuum. Your contributions will play a crucial role in advancing knowledge in this field.

Potential topics include, but are not limited to:

  1. Folded BIC
  2. Merging BIC
  3. BIC in topological Photonic crystals
  4. Friedrich-Wintgen BIC
  5. symmetry-protected BIC
  6. Fabry-Perot BIC
Lead Guest Editor
  • Enduo Gao

    School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha, China

Guest Editors
  • HongJian Li

    School of Physics and Electronics, Central South University, Changsha, China

  • ZhiMin Liu

    School of Science, East China Jiaotong University, Nanchang, China

  • Guangtao Cao

    School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha, China

  • Xiao Zhang

    College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, China

  • Zhenbin Zhang

    School of Physics and Electronics, Central South University, Changsha, China

  • Miaofang Zhou

    School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha, China

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