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 Video

Updated: Sep 20, 2025

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.6K

Molecular Laser Cooling in a Dynamically Tunable Repulsive Optical Trap.

Yukai Lu1,2, Connor M Holland1, Lawrence W Cheuk1

  • 1Department of Physics, Princeton University, Princeton, New Jersey 08544, USA.

Physical Review Letters
|June 10, 2022
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

Network Pharmacology and Rat Caudal-disc Puncture Validation of Yi Qi Huo Xue Decoction For Lumbar Disc Degeneration.

Journal of visualized experiments : JoVE·2026
Same author

NCOA2 promotes the return of hematopoietic stem cells to quiescence after irradiation stress by regulating FOXO3a-dependent mitophagy.

HemaSphere·2026
Same author

Impact of oxidative and antioxidative potential on cancer risk: the Japan Public Health Center-based Prospective Study.

British journal of cancer·2026
Same author

<i>Mmrn1</i> expression defines a novel subset of hematopoietic stem cells and leukemia stem cells with great self-renewal potential.

Haematologica·2026
Same author

Glue Strips Measurement and Breakage Detection Based on YOLOv11 and Pixel Geometric Analysis.

Sensors (Basel, Switzerland)·2025
Same author

Response to the letter to the editor: Commentary on "Association between plasma 25-hydroxyvitamin D concentration and incident disabling dementia risk in Japan: A case-cohort study".

Journal of the neurological sciences·2025
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Researchers explored laser cooling of CaF molecules in repulsive optical traps, finding suppressed Stark shifts. This work enables efficient transfer into attractive optical traps, overcoming a key experimental challenge.

Area of Science:

  • Atomic, Molecular, and Optical Physics
  • Quantum Information Science

Background:

  • Attractive optical traps for laser-cooled molecules face limitations from differential ac Stark shifts.
  • These shifts hinder collisional shielding, rotational coherence, and cooling efficiency.

Purpose of the Study:

  • Investigate trapping and laser cooling of CaF molecules in a repulsive optical trap.
  • Address limitations imposed by ac Stark shifts in conventional attractive traps.
  • Develop efficient transfer methods from magneto-optical traps to attractive optical traps.

Main Methods:

  • Utilized a ring-shaped repulsive optical trap for CaF molecules.
  • Employed Λ-enhanced gray molasses cooling within the repulsive trap.
  • Dynamically reshaped the repulsive trap for efficient molecule transfer.

More Related Videos

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

14.7K
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

9.8K

Related Experiment Videos

Last Updated: Sep 20, 2025

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.6K
Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

14.7K
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

9.8K

Main Results:

  • Observed loss rate behaviors characteristic of repulsive traps, indicating suppressed ac Stark shifts.
  • Achieved minimum temperatures comparable to free-space cooling.
  • Demonstrated a method for highly efficient and rapid transfer to attractive optical traps.

Conclusions:

  • Repulsive optical traps effectively suppress ac Stark shifts for laser-cooled molecules.
  • In-trap cooling and trap reshaping enable millisecond-timescale, nearly lossless molecule transfer.
  • This approach overcomes a significant hurdle for molecular quantum science experiments.