Related Experiment Video
Updated: Feb 7, 2026
07:51
Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs
Published on: August 27, 2019
7.3K
[Detection System for High-Resolution and Broadband-2D Spectrogram]
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|July 28, 2018
Summary
A new 2D spectrogram detection system offers high resolution and low noise for echelle-prism spectroscopy. This system, utilizing a CCD detector, achieves broadband detection and a high signal-to-noise ratio for detailed spectral analysis.
Area of Science:
- Spectroscopy
- Optical Engineering
- Detector Physics
Background:
- Echelle-prism cross-dispersion requires high-resolution, broadband 2D spectrogram detection.
- Existing systems may face limitations in resolution, noise, or spectral range.
Purpose of the Study:
- To design and develop a high-resolution, low-noise 2D spectrogram detection system.
- To optimize the system for echelle-prism cross-dispersion applications.
Main Methods:
- Analyzed the relationship between detector and optical system parameters.
- Developed a design methodology for area spectrogram detection.
- Integrated a Hamamatsu S10141-1109S CCD detector.
- Implemented a system comprising control, driving, signal processing, storage, and transmission units.
Main Results:
- Achieved high-resolution 2D spectrogram imaging from 200 to 600 nm.
- Demonstrated a monochromatic image at 253.652 nm covering 5 pixels.
- Reached a resolvable wavelength of 6.3 pm.
Conclusions:
- The designed detection system meets the demand for high-resolution, broadband 2D spectrograms.
- The system exhibits high sensitivity, broadband capability, and a high signal-to-noise ratio.
- Experimental results validate the system's performance in echelle-prism cross-dispersion spectroscopy.
Related Concept Videos
01:12Two-Dimensional (2D) NMR: Overview
1.5K
The 1D NMR spectrum of large and complex molecules like natural products has complicated splitting patterns and overlapping signals, which can be easily interpreted using 2-dimensional (2D) NMR. Unlike 1D NMR, 2D NMR has two frequency axes that provide the coupling information between the nucleus A and nucleus B in a molecule. The process from which 2D spectra are obtained has four steps.
The first step is the preparation period, during which nucleus A is excited with a radiofrequency pulse....
The first step is the preparation period, during which nucleus A is excited with a radiofrequency pulse....
1.5K
01:15Chromatographic Resolution
2.2K
In chromatography, a solute moves through a chromatographic column and tends to spread, forming a Gaussian-shaped band. The longer the solute spends in the column, the broader the band becomes. The broadening can lead to overlaps within the column, affecting separation effectiveness.
The effectiveness of separation can be evaluated by determining the level of separation between two neighboring peaks in a chromatogram, which represents the individual components of a sample.
In chromatography,...
The effectiveness of separation can be evaluated by determining the level of separation between two neighboring peaks in a chromatogram, which represents the individual components of a sample.
In chromatography,...
2.2K
01:162D NMR: Overview of Homonuclear Correlation Techniques
671
Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations between nuclei of the same type within a molecule. It provides information about scalar couplings between adjacent nuclei, which helps determine connectivity and structural information. There are several COSY variants, each with its unique strengths and experimental parameters.
COSY90 is the standard two-dimensional (2D) COSY experiment that...
COSY90 is the standard two-dimensional (2D) COSY experiment that...
671
01:182D NMR: Overview of Heteronuclear Correlation Techniques
812
Heteronuclear correlation spectroscopy is an analytical technique that investigates the coupling between different types of nuclei, often a proton and an X-nucleus, such as carbon-13 or nitrogen-15. This method is commonly used in nuclear magnetic resonance (NMR) spectroscopy to gain insights into complex chemical compounds' structural and compositional aspects. A typical heteronuclear correlation spectrum displays X-nucleus chemical shifts on one axis and a proton spectrum on the other...
812
01:062D NMR: Homonuclear Correlation Spectroscopy (COSY)
2.0K
Homonuclear correlation spectroscopy, or COSY, is a 2-dimensional NMR technique that provides information about coupled protons. Typically, the geminal and vicinal coupling are observed. For example, consider the COSY spectrum of ethyl acetate, where its 1D proton NMR spectrum is plotted along the vertical and horizontal axes with their corresponding chemical shift scale. Three spots on the diagonal corresponding to the three peaks in the 1D proton spectrum are called diagonal peaks. The COSY...
2.0K
01:192D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)
1.5K
Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a heteronucleus. The HSQC experiment is similar to the heteronuclear correlation experiment (HETCOR) but is more sensitive. In the HSQC spectrum, the proton chemical shift is plotted on the horizontal F2 axis, while the 13C chemical shift is plotted on the vertical F1 axis. The corresponding proton and 13C spectra are also shown. The HSQC contour plot does...
1.5K