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

UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

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 process,...
Induced Electric Dipoles01:28

Induced Electric Dipoles

A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Electric Dipoles and Dipole Moment01:30

Electric Dipoles and Dipole Moment

Consider two charges of equal magnitude but opposite signs. If they cannot be separated by an external electric field, the system is called a permanent dipole. For example, the water molecule is a dipole, making it a good solvent.
Theoretically, studying electric dipoles leads to understanding why the resultant electric forces around us are weak. Since electric forces are strong, remnant net charges are rare. Hence, the interaction between dipoles helps us understand electrical interactions in...
IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration01:16

IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration

A covalently bonded heteronuclear diatomic molecule can be modeled as two vibrating masses connected by a spring. The vibrational frequency of the bond can be expressed using an equation derived from Hooke's law, which describes how the force applied to stretch or compress a spring is proportional to the displacement of the spring. In this case, the atoms behave like masses, and the bond acts like a spring.
According to Hooke's law, the vibrational frequency is directly proportional to the...
¹H NMR: Long-Range Coupling01:27

¹H NMR: Long-Range Coupling

The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene π orbitals.
The Equilibrium Binding Constant and Binding Strength02:18

The Equilibrium Binding Constant and Binding Strength

The equilibrium binding constant (Kb) quantifies the strength of a protein-ligand interaction. Kb can be calculated as follows when the reaction is at equilibrium:

You might also read

Related Articles

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

Sort by
Same author

Speckle-based measurement of the fractional azimuthal index of orbital angular momentum beams for refractive index sensing.

Nature communications·2026
Same author

Superconducting nanowire single-photon detectors for enhanced biomedical imaging.

Journal of biomedical optics·2026
Same author

CO<sub>2</sub> Isotopologue Quantification Using Direct Frequency Comb Spectroscopy and Machine Learning.

ACS omega·2025
Same author

The role of light sheet microscopy for non-invasive imaging of live embryos.

Human reproduction (Oxford, England)·2025
Same author

Shining a Light on the Future of Biophotonics.

Journal of biophotonics·2025
Same author

Sidelobe suppressed Bessel beams for one-photon light-sheet microscopy.

Biomedical optics express·2024

Related Experiment Video

Updated: May 17, 2026

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
08:04

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

An interacting dipole model to explore broadband transverse optical binding.

Michael Mazilu1, Andrew Rudhall, Ewan M Wright

  • 1SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, UK. michael.mazilu@st-andrews.ac.uk

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|November 2, 2012
PubMed
Summary

Optical binding forces between nanoparticles are explored in intense optical fields. Broadband fields reduce binding force amplitude due to spectral averaging, enabling control over novel condensed matter structures.

More Related Videos

Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light
09:19

Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light

Published on: July 29, 2013

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Related Experiment Videos

Last Updated: May 17, 2026

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
08:04

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light
09:19

Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light

Published on: July 29, 2013

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Area of Science:

  • Condensed matter physics
  • Nanophotonics
  • Optical forces

Background:

  • Optical binding, the interaction between particles mediated by light, offers new avenues for creating exotic condensed matter.
  • Tailoring optical fields in space and time allows for precise control over the structure of this novel matter.

Purpose of the Study:

  • To theoretically investigate transverse optical binding forces acting on nanoparticles.
  • To analyze the influence of monochromatic and broadband optical fields on these forces.
  • To explore self-organization in multi-particle optically bound systems.

Main Methods:

  • Theoretical calculation of transverse optical binding forces.
  • Analysis of force dependence on inter-particle separation in different optical field types.
  • Application of the interacting dipole method for multi-particle systems.

Main Results:

  • Optical binding forces decrease in amplitude for broadband fields compared to monochromatic fields.
  • This reduction is attributed to the averaging of spectrally dependent optical forces.
  • Self-organized positions were determined for systems of six and ten nanoparticles under monochromatic plane wave illumination.

Conclusions:

  • Broadband optical fields can modulate optical binding forces, offering a new control parameter for condensed matter.
  • The interacting dipole method effectively predicts self-organization in complex optically bound nanoparticle assemblies.
  • This research opens possibilities for designing and fabricating novel optical materials and devices.