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Related Concept Videos

Parallel Resonance01:23

Parallel Resonance

The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:

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Related Experiment Video

Updated: May 16, 2026

Fabrication of Silica Ultra High Quality Factor Microresonators
07:51

Fabrication of Silica Ultra High Quality Factor Microresonators

Published on: July 2, 2012

Universal anti-reflection blocks for 4-port periodic microresonator structures.

Zhenshan Yang1, J E Sipe

  • 1College of Physical Science and Information Technology, Liaocheng University, Liaocheng, Shandong, 252000 China. yangzhenshan@lcu.edu.cn

Optics Express
|November 29, 2012
PubMed
Summary

We developed universal anti-reflection blocks for periodic microresonator sequences. These blocks eliminate and reduce light reflection at specific frequencies in photonic devices.

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Implementation of a Reference Interferometer for Nanodetection
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Last Updated: May 16, 2026

Fabrication of Silica Ultra High Quality Factor Microresonators
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Implementation of a Reference Interferometer for Nanodetection
16:11

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Area of Science:

  • Photonics
  • Optical Engineering
  • Materials Science

Background:

  • Periodic microresonator sequences are crucial in integrated photonics.
  • Achieving broadband or tunable reflection suppression in these structures remains a challenge.

Purpose of the Study:

  • To introduce universal anti-reflection blocks for finite periodic microresonator sequences.
  • To demonstrate their ability to eliminate and reduce reflectivity at specific frequencies.

Main Methods:

  • Designing 4-port unit cells as anti-reflection blocks.
  • Integrating these blocks with finite periodic microresonator sequences.
  • Analyzing the optical response through parameter adjustment.

Main Results:

  • The anti-reflection blocks successfully eliminate reflectivity at a target frequency (ωref).
  • Significant reflection reduction is achieved in a frequency range around ωref.
  • The blocks are universal, applicable to various microresonator designs and frequencies within photonic bands.

Conclusions:

  • Universal anti-reflection blocks offer a versatile solution for minimizing unwanted reflections in photonic devices.
  • This approach enhances the performance and tunability of microresonator-based systems.
  • The design is independent of the internal structure of the periodic sequence unit cells.