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Related Concept Videos

Standing Waves in a Cavity01:28

Standing Waves in a Cavity

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A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
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MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

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Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
604

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Related Experiment Video

Updated: Nov 19, 2025

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
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Single-Mode Semiconductor Nanowire Lasers With Coupled Cavities.

Salman Ullah1,2, Sijie Pian1, Fang Dai3

  • 1State Key Laboratory of Modern Optical Instrumentation, International Research Center for Advanced Photonics, College of Optical Science and Engineering, Zhejiang University, Hangzhou, China.

Frontiers in Chemistry
|February 1, 2021
PubMed
Summary
This summary is machine-generated.

Single-mode semiconductor nanowire lasers offer compact, efficient light sources for advanced applications. This review covers their technology, coupling methods for single-mode output, and current challenges.

Keywords:
coupled cavitymode selectionnanowire lasersemiconductor nanowire lasersingle-mode

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Area of Science:

  • Nanophotonics and Nanoelectronics
  • Laser Technology

Background:

  • Semiconductor nanowires are key materials for next-generation nanophotonics and nanoelectronics.
  • Their unique optical and electrical properties make them promising for miniaturized coherent light sources.

Purpose of the Study:

  • To review the fundamental technology and research progress of single-mode semiconductor nanowire lasers.
  • To elaborate on coupling methods for achieving single-mode laser output.
  • To summarize the challenges associated with each coupling scheme.

Main Methods:

  • Review of existing literature on semiconductor nanowire laser technology.
  • Analysis of different coupling techniques for single-mode output.
  • Identification and summarization of challenges in current research.

Main Results:

  • Detailed overview of single-mode semiconductor nanowire laser technology.
  • Elaboration on various coupling methods and their development.
  • Summary of challenges faced by different coupling schemes.

Conclusions:

  • Single-mode semiconductor nanowire lasers are vital for diverse applications.
  • Further research is needed to overcome challenges in coupling methods.
  • Advancements in this field will drive innovation in nanophotonics and nanoelectronics.