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関連する概念動画

Diode: Forward bias01:20

Diode: Forward bias

In semiconductor devices, diodes play a crucial role in directing current flow, and its operation is primarily categorized into forward bias and reverse bias. A diode is said to be forward-biased when its p-type region is connected to the positive terminal of a battery and its n-type region is linked to the negative terminal. This configuration reduces the potential barrier within the diode, allowing current to flow easily from the p to the n-type region.
The behavior of a diode in forward bias...
The Ideal Diode01:15

The Ideal Diode

A diode is a semiconductor device that allows current to flow in one direction only, making it a crucial component in electronic circuits for controlling the direction of current flow. An ideal diode is a simplified version of a real diode used to understand how diodes work in circuits. It possesses two terminals: the positive anode and the cathode, which is negative. When a positive voltage is applied to the anode relative to the cathode, the diode is in a forward-biased state, allowing...
Diode: Reverse bias01:14

Diode: Reverse bias

A diode is reverse-biased when the positive terminal of an external voltage source is connected to the n-type material and the negative terminal to the p-type material. This configuration opposes the natural direction of current flow through the diode, effectively increasing the width of the depletion region and the barrier potential. The reverse bias condition produces a minimal leakage current, primarily due to minority charge carriers. This leakage becomes significant when the reverse...
Schottky Barrier Diode01:27

Schottky Barrier Diode

Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...
Small-signal Diode Model01:18

Small-signal Diode Model

In analyzing the behavior of diodes in circuits, the relationship between the current through a diode and the voltage across it is of particular interest, especially when considering the effect of a direct current (DC) bias voltage. When applied, this DC bias influences the diode's operating point, known as the Q point, around which the current-voltage (I-V) characteristic of the diode exhibits exponential behavior. Introducing a small, time-varying signal on top of this bias aids in examining...
Non-ohmic Devices00:51

Non-ohmic Devices

In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
Consider a simple circuit consisting of a battery, a diode, and a resistor. A diode...

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関連する実験動画

Updated: May 26, 2026

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

全シリコンのパッシブ光学ダイオード.

Li Fan1, Jian Wang, Leo T Varghese

  • 1Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA.

Science (New York, N.Y.)
|December 24, 2011
PubMed
まとめ
この要約は機械生成です。

研究者らは,チップ内処理のための受動的なシリコン光学ダイオードを開発した. このデバイスは,高い前後伝送比を達成し,アクティブコンポーネントなしで効率的な光学情報ルーティングを可能にします.

さらに関連する動画

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors
08:32

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

関連する実験動画

Last Updated: May 26, 2026

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors
08:32

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

科学分野:

  • フォトニクス フォトニクスとは
  • 非線形光学は,非線形光学である.
  • インテグレーテッド光学 (Integrated Optics) とは

背景:

  • パッシブ光ダイオード効果を達成することは,オンチップの光学情報処理に不可欠です.
  • 既存の方法は,多くの場合,アクティブコンポーネントを必要とします,または実装が困難です.

研究 の 目的:

  • シリコンリング共振器を使用して,受動的な光ダイオード効果を実証する.
  • 通信波長における高光学非互換性を達成する.

主な方法:

  • 2つのシリコンリング共振器 (5マイクロメートルの半径) を備えた装置で光学非線形性を利用する.
  • デバイスを幅広い入力電力レベルで受動的に操作する.

主要な成果:

  • 28デシベルまでの前後伝送比を示した.
  • 前方および後方入力電力の変動に対して堅牢な光学非互換性を達成しました.
  • このデバイスは超コンパクトで,補完的な金属酸化物半導体 (CMOS) 処理と互換性があります.

結論:

  • パッシブシリコン光学ダイオードが成功裏に実証されました.
  • このデバイスは,オンチップの光学情報処理アプリケーションのための有望なソリューションを提供します.
  • CMOS技術との互換性は,既存の製造プロセスへの統合を容易にする.