Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

296
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...
296
Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

305
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
305
IR Absorption Frequency: Delocalization01:04

IR Absorption Frequency: Delocalization

727
Electron delocalization refers to the distribution of electrons across multiple atoms within a molecule rather than being confined to a single atom or bond. This phenomenon is common in systems with conjugated bonds—structures where alternating single and double bonds allow π-electrons to move freely across the network. The movement of electrons stabilizes the molecule and can affect various chemical properties, including vibrational frequencies observed in IR spectroscopy.
In IR...
727
Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

3.3K
Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
3.3K

You might also read

Related Articles

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

Sort by
Same author

Association between intraoperative hypothermia and total hospitalization cost after liver transplantation: a retrospective cohort study.

Perioperative medicine (London, England)·2026
Same author

Effect of perioperative targeted therapy duration on prognosis in patients with gastrointestinal stromal tumors undergoing neoadjuvant imatinib therapy: A nationwide retrospective study.

European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology·2026
Same author

Three-dimensional decadal simulation of dissolved tracer dispersion in the Pacific Ocean and its marginal seas.

Marine pollution bulletin·2026
Same author

Regulatory role of epigenetics in rice immunity against bacterial and fungal pathogens.

Crop health·2026
Same author

Minimally invasive treatment of emphysematous pyelonephritis in diabetic patients: a comparative study.

BMC urology·2026
Same author

GLP-1R activation alleviated sepsis-induced cardiac dysfunction by modulating macrophage polarization via the STING/ P65 pathway.

Biochemical pharmacology·2026

Related Experiment Video

Updated: Jun 4, 2025

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy
15:04

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy

Published on: May 18, 2011

13.1K

Few-Mode Fiber with Low Spontaneous Raman Scattering for Quantum Key Distribution and Classical Optical Communication

Qi Zhao1, Jianjun Tang1, Weiwen Kong1

  • 1Institute of Basic Operations Technology, China Telecom Research Institute, Beijing 102209, China.

Sensors (Basel, Switzerland)
|December 17, 2024
PubMed
Summary
This summary is machine-generated.

This study explores spontaneous Raman scattering (SpRS) in few-mode fibers (FMF) for quantum key distribution (QKD). An improved FMF design enhances transmission distance by over 54% using multiplexing techniques.

Keywords:
few-mode fiberquantum key distributionspontaneous Raman scattering

More Related Videos

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

8.9K
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

7.5K

Related Experiment Videos

Last Updated: Jun 4, 2025

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy
15:04

Rejection of Fluorescence Background in Resonance and Spontaneous Raman Microspectroscopy

Published on: May 18, 2011

13.1K
Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

8.9K
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

7.5K

Area of Science:

  • Optical Fiber Communications
  • Quantum Information Science
  • Photonics

Background:

  • Spontaneous Raman scattering (SpRS) is a nonlinear optical phenomenon that can degrade signal quality in optical fibers.
  • Few-mode fibers (FMF) offer potential for increased data capacity through space division multiplexing (SDM).
  • Quantum key distribution (QKD) relies on secure transmission of quantum states, sensitive to noise sources like SpRS.

Purpose of the Study:

  • To theoretically model SpRS in FMF and evaluate its impact on QKD.
  • To investigate the combined effects of wavelength division multiplexing (WDM) and SDM on SpRS in FMF for QKD.
  • To design and characterize an improved FMF structure for enhanced QKD performance.

Main Methods:

  • Theoretical modeling of SpRS in FMF.
  • Simulation of QKD protocols incorporating SpRS effects under WDM and SDM.
  • Design and experimental characterization of a novel ring-assisted FMF.

Main Results:

  • SpRS significantly influences QKD performance in FMF, with both forward and backward scattering effects analyzed.
  • The proposed WDM and SDM combination mitigates SpRS impact, enabling longer transmission distances.
  • The improved ring-assisted FMF design demonstrated a transmission distance increase of up to 54.5% for multi-channel configurations.

Conclusions:

  • SpRS is a critical factor to consider for high-performance QKD in FMF.
  • Multiplexing techniques (WDM/SDM) and optimized fiber design are crucial for overcoming SpRS limitations.
  • The developed ring-assisted FMF shows promise for extending the reach of secure quantum communication systems.