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 Experiment Videos

Quantum-sized gold clusters as efficient two-photon absorbers.

Guda Ramakrishna1, Oleg Varnavski, Junhyung Kim

  • 1Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA.

Journal of the American Chemical Society
|March 25, 2008
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Long-term real-world outcomes and device management of intrathecal drug delivery systems: A 16-year single-center experience with a primary focus on baclofen therapy.

Clinical neurology and neurosurgery·2026
Same author

Cleft Palate Repair Guided by Cleft Gap: An Institutional Protocol Using Modified Asymmetric Short Limb Z-plasty (MASLZ) and Straight-line Repair.

Plastic and reconstructive surgery·2026
Same author

Preliminary efficacy of a self-guided mobile intervention for reducing stress in depression: A randomized controlled crossover trial.

Journal of affective disorders·2026
Same author

Biomechanical evaluation of structural integrity after tibial plateau leveling osteotomy in dogs using finite element analysis.

Scientific reports·2026
Same author

Characteristics of subjective well-being and communication in individuals with social anxiety disorder assessed through virtual reality tasks.

Psychiatry research·2026
Same author

Photoacoustic microscopy reveals deep angiogenic responses in 3D bioprinted tumor-vessel models.

Microsystems & nanoengineering·2026
Same journal

Linker Engineering toward NIR-II Metal-Organic Framework with Maximal Emission beyond 1000 nm for Inflammatory Bowel Disease Imaging.

Journal of the American Chemical Society·2026
Same journal

Observing Kinetic Selectivity in Anthracene Photodimerization through Selective Quenching by Excited States of Proximate Rare Earth Cations.

Journal of the American Chemical Society·2026
Same journal

Sequence-Dependent Folding of Recognition-Encoded Melamine Oligomers.

Journal of the American Chemical Society·2026
Same journal

Large Thermo- and Mechanosalient Actuation via Cooperative Twist Elasticity-Induced Packing Motif Conversion.

Journal of the American Chemical Society·2026
Same journal

Discovery and Biosynthesis of Lanthipeptides Featuring an Azepinoindole Scaffold by Radical <i>S</i>-Adenosylmethionine Enzyme-Catalyzed C-C Bond Formation.

Journal of the American Chemical Society·2026
Same journal

Enantiopurity-Controlled Magnetism in a Two-Dimensional Organic-Inorganic Material.

Journal of the American Chemical Society·2026
See all related articles

Gold nanoclusters exhibit strong two-photon absorption, with record cross-sections for quantum-sized clusters. These properties make them ideal for advanced applications like two-photon imaging and optical power limiting.

Area of Science:

  • Nanotechnology
  • Materials Science
  • Quantum Chemistry

Background:

  • Gold clusters exhibit unique optical properties.
  • Two-photon absorption (TPA) is crucial for advanced optical applications.

Purpose of the Study:

  • Investigate the two-photon absorption properties of gold clusters.
  • Determine TPA cross-sections for various gold cluster sizes.
  • Explore potential applications of these clusters.

Main Methods:

  • Two-photon excited fluorescence spectroscopy.
  • Time-resolved fluorescence upconversion measurements.
  • Systematic variation of gold cluster size (Au25 to Au2406).

Main Results:

  • Au25 clusters show a TPA cross-section of 2700 GM at 1290 nm.

Related Experiment Videos

  • Visible fluorescence, two-photon allowed, observed in small gold clusters.
  • Record high TPA cross-sections measured for quantum-sized gold clusters.

    • Conclusions:

    • Gold nanoclusters possess significant two-photon absorption capabilities.
    • Quantum-sized gold clusters are promising for two-photon imaging.
    • Potential applications include optical power limiting and lithography.