Related Experiment Video
Updated: May 3, 2026

07:16
Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis
Published on: September 27, 2019
6.1K
Eye-safe compact Raman light detection and ranging temperature profiler.
Applied Optics
|February 12, 2014
Summary
This study presents a new lidar system for measuring atmospheric temperature profiles. The eye-safe instrument utilizes rotational Raman scattering for accurate, day and night, meteorological data collection.
Area of Science:
- Atmospheric Science
- Remote Sensing
- Meteorology
Background:
- Atmospheric temperature profiles are crucial for understanding atmospheric stability.
- Traditional methods for measuring temperature profiles can be limited in scope and accessibility.
Purpose of the Study:
- To develop and demonstrate a novel lidar system for measuring atmospheric temperature profiles.
- To enable routine, stand-alone measurements of key meteorological properties in the lower atmosphere.
Main Methods:
- Utilized a lidar system with a 355 nm Nd:YAG laser transmitter.
- Employed the rotational Raman technique for temperature profile measurement.
- Incorporated innovations: eye-safe, low peak power, high repetition rate laser and an angle tuning filter.
Main Results:
- Successfully demonstrated the capability for both nighttime and daytime atmospheric temperature measurements.
- The system's compact and reliable design facilitates potential stand-alone operation.
Conclusions:
- The developed lidar system offers a promising advancement for routine atmospheric temperature profiling.
- This technology contributes to improved monitoring of meteorological properties in the lower atmosphere.
Related Concept Videos
Raman Spectroscopy Instrumentation: Overview
1.8K
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...
1.8K
IR Spectrometers
3.1K
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...
3.1K

