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関連する概念動画

Encoding01:19

Encoding

Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
Channel Rhodopsins01:11

Channel Rhodopsins

Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this process,...
Photoelectric Effect02:26

Photoelectric Effect

When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
Photochemical Electrocyclic Reactions: Stereochemistry01:26

Photochemical Electrocyclic Reactions: Stereochemistry

The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation

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関連する実験動画

Updated: Jul 3, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

分子オールフォトニックエンコーダー-デコーダー

Joakim Andréasson1, Stephen D Straight, Thomas A Moore

  • 1Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Göteborg, Sweden. a-son@chalmers.se

Journal of the American Chemical Society
|July 30, 2008
PubMed
まとめ
この要約は機械生成です。

研究者らは,全フォトニックエンコーダーとデコーダーとして機能する分子トライアードを開発しました. この分子は光を用いてデジタル情報を圧縮し,復元し,データ操作やナノスケールオブジェクト追跡における潜在的なアプリケーションを可能にします.

さらに関連する動画

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Lensless Fluorescent Microscopy on a Chip
11:23

Lensless Fluorescent Microscopy on a Chip

Published on: August 17, 2011

関連する実験動画

Last Updated: Jul 3, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Lensless Fluorescent Microscopy on a Chip
11:23

Lensless Fluorescent Microscopy on a Chip

Published on: August 17, 2011

科学分野:

  • 分子工学は分子工学である.
  • フォトケミストリー フォトケミストリー
  • データサイエンス データサイエンス

背景:

  • データ処理は,圧縮のためのエンコーダーと,情報復元のためのデコーダーに依存しています.
  • フォトクロミック分子は,光制御データ操作の可能性を秘めています.

研究 の 目的:

  • 全光子単ビット4〜2エンコーダーと2〜4デコーダーとして機能する新種の分子トリアードを報告する.
  • 光刺激を用いた可逆的なデータ圧縮と復元のための分子能力を実証する.

主な方法:

  • 2つのフルジミド光染色体と結びついたディチエニレチンの核を含む分子トライアードを合成した.
  • 異なる波長の光を活用して,分子構成要素の光異性化を引き起こします.
  • 情報を解読するために吸収率と光放射を測定した.

主要な成果:

  • 分子トライアードは,全フォトニックの4対2のエンコーディングと2対4のデコード機能を成功裏に実行しました.
  • システムは,最小限の光分解で多数のエンコーディングとデコーディング操作を通じて,安定したサイクリングを実証しました.
  • 入力情報 (波長) は2つの出力吸収信号に圧縮され,その後回収されました.

結論:

  • 単一の分子は,エンコーダーとデコーダーの両方として動作し,複雑なデータ処理タスクを実行することができます.
  • この分子フォトニック装置は,光ベースのデータ操作のための新しいパラダイムを提供します.
  • 潜在的なアプリケーションには,ナノスケールオブジェクト追跡と高度なデータストレージソリューションが含まれます.