Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Interference and Diffraction02:18

Interference and Diffraction

52.6K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
52.6K
Phase-lead and Phase-lag Controllers01:22

Phase-lead and Phase-lag Controllers

582
Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
582
Phase Transitions: Sublimation and Deposition02:33

Phase Transitions: Sublimation and Deposition

20.3K
Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...
20.3K
Phase Transitions02:31

Phase Transitions

23.3K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
23.3K
Phase Transitions: Vaporization and Condensation02:39

Phase Transitions: Vaporization and Condensation

21.6K
The physical form of a substance changes on changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. Vaporization occurs when the thermal motion of the molecules overcome the intermolecular forces, and the molecules (at the surface) escape into the gaseous state. When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules...
21.6K
Time and frequency -Domain Interpretation of Phase-lead Control01:24

Time and frequency -Domain Interpretation of Phase-lead Control

479
Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
479

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Integrated multi-omics analysis reveals apple mango leaf extract-induced dendritic cell maturation associated with Il1b upregulation and PU.1/ETS motif enrichment.

Scientific reports·2026
Same author

Ultrafast, reconfigurable all-optical beam steering and spatial light modulation.

Nature nanotechnology·2026
Same author

Copper import via CTR1 supports the β3-Adrenergic thermogenic program.

Molecular metabolism·2026
Same author

Prophylactic Administration of Gypsophila oldhamiana Extract Restricts Acute Toxoplasma gondii Infection via the DC-IL-12-CD8⁺ T Cell Axis in a Murine Model.

Acta parasitologica·2026
Same author

Predictors of Massive Transfusion in Adult Blunt Trauma Patients: Analysis of a Nationwide Trauma Registry in Korea.

Journal of Korean medical science·2026
Same author

Experimental demonstration of corrugated nanolaminate films as reflective light sails.

Nature communications·2026

関連する実験動画

Updated: Feb 12, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
09:33

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

6.7K

透過型メタサーフェスにおける回折制御を介した動的位相変調の障壁克服

Juyoung Kim1,2, Ruzan Sokhoyan2, Minkyoon Yi1

  • 1Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea.

ACS nano
|February 11, 2026
PubMed
まとめ
この要約は機械生成です。

研究者らは、動的な波面制御のための新しい透過型メタサーフェスを開発しました。この進歩により、アクティブフォトニックシステムにおける以前の制限を克服し、一定の伝送で連続的な0-360°位相調整が可能になります。

キーワード:
ファノ曲線アクティブメタサーフェス回折位相変調位相のみ制御透過ゼロ

さらに関連する動画

Testing the Physiological Barriers to Viral Transmission in Aphids Using Microinjection
06:01

Testing the Physiological Barriers to Viral Transmission in Aphids Using Microinjection

Published on: May 14, 2008

12.5K
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

10.4K

関連する実験動画

Last Updated: Feb 12, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
09:33

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

6.7K
Testing the Physiological Barriers to Viral Transmission in Aphids Using Microinjection
06:01

Testing the Physiological Barriers to Viral Transmission in Aphids Using Microinjection

Published on: May 14, 2008

12.5K
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

10.4K

科学分野:

  • フォトニクスおよび光学工学
  • メタマテリアルおよびナノフォトニクス

背景:

  • アクティブフォトニックシステムは、動的な波面制御のためにメタサーフェスを利用しています。
  • 透過型メタサーフェスは、統合フォトニックシステムに不可欠ですが、位相制御（0-180°）に制限があります。
  • 既存の設計は反射型であることが多く、用途が限定されます。

研究 の 目的:

  • 単一共鳴透過型メタサーフェスの限界を克服すること。
  • 一定の伝送振幅で連続的な0-360°の位相調整を達成すること。
  • コンパクトで統合されたフォトニックシステムにおける動的な位相制御を可能にすること。

主な方法:

  • 単一の伝送ポートを維持しながら、反射における追加の回折ポートを導入しました。
  • 時間領域連成モード理論を使用して解析的に実証しました。
  • リチウムニオベート、ゲルマニウム、シリコン共振器を使用した概念実証アクティブメタサーフェスでアプローチを検証しました。

主要な成果:

  • 伝送ゼロなしで連続的な0-360°の位相調整を実証しました。
  • マルチ共鳴システムと同様に、位相範囲全体でスペクトル的に平坦な伝送振幅を達成しました。
  • シミュレーションされたメタサーフェスは、ほぼ理想的な伝送振幅（約0.45および約0.4）で約250°および約300°の調整可能な位相シフトを示しました。

結論:

  • 新しい設計により、ほぼ理想的な位相と振幅特性を持つコンパクトで動的に調整可能な透過型メタサーフェスが可能になります。
  • このアプローチは、単一共鳴透過型アーキテクチャの基本的な制約を克服します。
  • 高度な統合および再構成可能なフォトニックシステムへの道を開きます。