関連する実験動画
Updated: Nov 19, 2025

13:31
High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
Published on: December 22, 2015
15.4K
光学スペクトロメーターの小型化
Zongyin Yang1,2, Tom Albrow-Owen1, Weiwei Cai3
1Department of Engineering, University of Cambridge, Cambridge CB3 0FA, UK.
まとめ
ミニチュア化スペクトロメーターは急速に進歩し,ポータブルで現地スペクトロスク分析が可能になっています. これらのコンパクトなデバイスのスペクトル解像度を向上させる研究が進められています.
科学分野:
- 分析化学
- 光学工学
- 材料科学
背景:
- 顕微鏡分析は 科学的研究と産業の礎石です
- 従来のベンチ用スペクトロメーターは高性能ですが,持ち運びはできません.
- ミニチュライゼーションは,フィールドおよびin situ測定に不可欠です.
研究 の 目的:
- マイクロスペクトロメーターの開発における技術的進歩をレビューする.
- ミニチュア化されたデバイスで高スペクトル解像度を達成するための課題について議論する.
- 消費者向け技術とラボ・オン・ア・チップシステムにおけるマイクロスペクトロメーターの可能性を強調する.
主な方法:
- ミニチュア化された分散光学のレビュー.
- 狭帯域フィルターシステムの分析
- フーリエ変換インターフェロメーターの検査
- リコンストラクティブマイクロスペクトロメーター技術の議論
主要な成果:
- マイクロスペクトロメーターは,ポータブルで統合されたシステムに適した性能レベルに近づいています.
- 様々な技術が登場し,スペクトロメーターの小型化が可能になった.
- 顕微鏡装置のフットプリントを削減する上で大きな進展がありました.
結論:
- マイクロスペクトロメーターの技術は成熟しており,携帯機器や消費者向けデバイスに新しいアプリケーションを可能にしています.
- デバイスのサイズが小さくなるにつれて,スペクトル解像度のさらなる改善が必要になります.
- マイクロスペクトロメーターの開発は,インシットとモバイル分析科学の将来にとって極めて重要です.
関連する概念動画
Imaging Biological Samples with Optical Microscopy
8.2K
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
8.2K
UV–Vis Spectrometers
2.5K
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.
2.5K
Raman Spectroscopy Instrumentation: Overview
668
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
668
IR Spectrometers
1.7K
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
1.7K
Atomic Emission Spectroscopy: Instrumentation
845
The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers. Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
845
Spectrophotometry: Introduction
6.0K
Spectrophotometry is the quantitative measurement of the absorption, reflection, diffraction, or transmission of electromagnetic radiation through a material as a function of the intensity and wavelength of the radiation. A spectrophotometer is a device used to measure the change in the radiation intensity caused by its interaction with the material.
The essential components of a spectrophotometer include a source of electromagnetic radiation, a slot for placing a material to be analyzed, and a...
The essential components of a spectrophotometer include a source of electromagnetic radiation, a slot for placing a material to be analyzed, and a...
6.0K

