Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...

Generating Electromagnetic Radiations

Generating Electromagnetic Radiations

The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in the...

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.

Atomic Emission Spectroscopy: Instrumentation

Atomic Emission Spectroscopy: Instrumentation

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.

Atomic Emission Spectroscopy: Overview

Atomic Emission Spectroscopy: Overview

Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Data on the stated willingness to accept collective agri-environmental schemes for biodiversity conservation of European grassland farmers.

Data in brief·2026

Same author

Conflict adaptation in a confound-minimized face-word Stroop task: exploring the potential settings of an fMRI-related experiment.

Frontiers in psychology·2026

Same author

Processing pipeline for large optical coherence elastography datasets with quasi-static air-jet excitation: application to human brain tumor tissue.

Biomedical optics express·2026

Same author

Dual-resolution megahertz optical coherence tomography prototype rectoscope for enhanced visualization of colorectal microstructures.

Journal of biomedical optics·2026

Same author

Assessment of Attenuation Coefficient and Blood Flow at Depth in Pediatric Thermal Hand Injuries Using Optical Coherence Tomography: A Clinical Study.

European burn journal·2025

Same author

Megahertz dynamic optical coherence tomography of blisters in human skin.

Biomedical optics express·2025

Search research articles

Related Experiment Video

Updated: Jun 14, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

Wavelength swept amplified spontaneous emission source.

Christoph M Eigenwillig¹, Benjamin R Biedermann, Wolfgang Wieser

¹Lehrstuhl für BioMolekulare Optik, Fakultät für Physik, Ludwig-Maximilians-Universität München Oettingenstr 67, 80538 Munich, Germany.

|April 8, 2010

Summary

This study introduces a novel wavelength swept light source with no speed limit. Precise nanosecond phase delays enable high sweep rates for applications like optical coherence tomography (OCT).

More Related Videos

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

Published on: April 4, 2016

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

Published on: September 22, 2017

Related Experiment Videos

Last Updated: Jun 14, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

Published on: April 4, 2016

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

Published on: September 22, 2017

Area of Science:

Photonics and Optical Engineering
Biomedical Optics

Background:

High-speed wavelength swept light sources are crucial for advanced imaging techniques.
Existing Fourier Domain Mode Locked (FDML) lasers have limitations in sweep speed and complexity.

Purpose of the Study:

To present a new, alternative approach for a wavelength swept light source with no fundamental limit to sweep speed.
To demonstrate the feasibility and performance of this novel light source for optical coherence tomography (OCT).

Main Methods:

Utilized amplified spontaneous emission (ASE) light passing through cascaded optical gain elements and tunable optical bandpass filters.
Implemented precise nanosecond phase delays in filter control signals to compensate for light propagation time.
Quantified coherence properties and relative intensity noise (RIN), comparing performance to FDML lasers.

Main Results:

Demonstrated sweep rates of 10 kHz, 100 kHz, and 340 kHz at 1300 nm center wavelength over a 100 nm sweep range with 50 mW average power.
Achieved an axial resolution of 12 microm (air), 120 dB sensitivity, and 50 dB dynamic range for OCT applications.
Successfully demonstrated OCT imaging using the developed light source.

Conclusions:

The proposed wavelength swept light source offers a promising alternative with significantly enhanced sweep speed capabilities.
The precise phase delay control is critical for achieving optimal performance at high sweep rates.
The demonstrated OCT performance metrics indicate its potential for advanced biomedical imaging.