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

Photoelectric Effect02:26

Photoelectric Effect

30.0K
When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
30.0K
Deactivation Processes: Jablonski Diagram01:25

Deactivation Processes: Jablonski Diagram

835
Luminescence, the emission of light by a substance that has absorbed energy, is a process that involves the interaction of molecules with light. The energy-level diagram, or Jablonski diagram, is a graphical representation of these interactions, illustrating the various states and transitions a molecule can undergo. In a typical Jablonski diagram, the lowest horizontal line represents the ground-state energy of the molecule, which is usually a singlet state. This state represents the energies...
835
Fluorescence and Phosphorescence: Instrumentation01:25

Fluorescence and Phosphorescence: Instrumentation

703
Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
703
UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

1.7K
In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this...
1.7K

You might also read

Related Articles

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

Sort by
Same author

Arginine-substituted Mastoparan-C derivatives combat dual bacterial pathogens: <i>in vitro</i> mechanistic insights and <i>in vivo</i> efficacy in polymicrobial wounds.

Microbiology spectrum·2026
Same author

Genome-wide analysis of MYB and F3'5'H gene families in Vaccinium bracteatum provides insights into anthocyanin biosynthesis.

BMC plant biology·2026
Same author

Culturally adapted DBT parent coaching for Chinese families of adolescents with mental disorders: a mixed-methods feasibility study.

BMC psychology·2026
Same author

Efficacy and safety of low-frequency repetitive transcranial magnetic stimulation in post-stroke depression: A fNIRS pilot study.

Psychiatry research·2026
Same author

Enabling Drug-Drug Interaction Event Prediction with Multi-view-enhanced Chemical Structural Information.

Interdisciplinary sciences, computational life sciences·2026
Same author

A machine learning-derived speech index as a biomarker for Huntington's disease severity.

Journal of neurology·2026

Related Experiment Video

Updated: Aug 28, 2025

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.6K

Faking photon number on a transition-edge sensor.

Poompong Chaiwongkhot1,2,3,4, Jiaqiang Zhong5, Anqi Huang6

  • 1Institute for Quantum Computing, University of Waterloo, Waterloo, ON N2L 3G1 Canada.

EPJ Quantum Technology
|September 15, 2022
PubMed
Summary

Researchers found security flaws in single-photon detectors. An attacker can exploit detector blinding to intercept and potentially steal quantum keys.

More Related Videos

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.5K
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.6K

Related Experiment Videos

Last Updated: Aug 28, 2025

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.6K
Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.5K
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.6K

Area of Science:

  • Quantum optics
  • Quantum information science
  • Detector physics

Background:

  • Superconducting transition-edge sensors are crucial for detecting single photons.
  • Quantum key distribution (QKD) relies on secure single-photon detection.
  • Understanding detector vulnerabilities is vital for QKD security.

Purpose of the Study:

  • To investigate security vulnerabilities in superconducting transition-edge sensor single-photon detectors.
  • To assess the impact of these vulnerabilities on quantum communication systems.
  • To model potential attacks exploiting detector weaknesses.

Main Methods:

  • Experimental analysis of detector response to varying light conditions.
  • Characterization of detector blinding and controlled response mechanisms.
  • Security modeling of an intercept-and-resend attack on a QKD system.

Main Results:

  • A known vulnerability allows faking photon counts by using longer wavelengths.
  • An unknown vulnerability allows blinding the detector with continuous light, then triggering false detections with pulses.
  • An intercept-and-resend attack exploiting the blinding vulnerability can potentially compromise QKD keys.

Conclusions:

  • Superconducting transition-edge sensors exhibit exploitable security vulnerabilities.
  • Detector blinding presents a significant threat to the security of quantum key distribution.
  • Further research is needed to develop countermeasures against these identified detector security risks.