Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Mass Analyzers: Common Types

Mass Analyzers: Common Types

The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...

Potential Due to a Polarized Object

Potential Due to a Polarized Object

A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...

Molecular Shape and Polarity

Molecular Shape and Polarity

Dipole Moment of a Molecule

You might also read

Related Articles

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

Sort by

Same author

Comparative analysis of non-volatile flavor compounds in salt-sugar co-cured grass carp fillets utilizing various frying techniques.

Food chemistry·2026

Same author

Appendicitis burden in Africa, 2010-2023: temporal trends, pandemic-era deviations, and projections to 2030.

Tropical medicine and health·2026

Same author

Analysis of "soft flesh"-affected Atlantic mackerel based on a systematic study of histology and protein structure.

Food chemistry·2026

Same author

Effects of protected areas on human-induced shifts in nocturnal activity in mammal communities in southwestern China.

Conservation biology : the journal of the Society for Conservation Biology·2025

Same author

A highly biosimilar synthetic Calculus Bovis enhances cerebral blood flow and provides neuroprotection against ischemic stroke.

Journal of ethnopharmacology·2025

Same author

Screening of natural myofibril-bound serine protease inhibitors based on molecular docking and their effects on the quality of surimi gels.

Food chemistry·2025

Search research articles

Related Experiment Video

Updated: Jun 26, 2026

Optical Trap Loading of Dielectric Microparticles In Air

Optical Trap Loading of Dielectric Microparticles In Air

Published on: February 5, 2017

Magneto-optical trap for polar molecules.

Benjamin K Stuhl¹, Brian C Sawyer, Dajun Wang

¹JILA, National Institute of Standards and Technology, University of Colorado, Boulder, Colorado 80309-0440, USA. stuhl@jila.colorado.edu

Physical Review Letters

|December 31, 2008

Summary

Researchers developed a new laser cooling technique for polar molecules like titanium (II) oxide (TiO). This method achieves ultra-low temperatures of 10 micrpK, enabling new possibilities in molecular physics research.

More Related Videos

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Related Experiment Videos

Last Updated: Jun 26, 2026

Optical Trap Loading of Dielectric Microparticles In Air

Optical Trap Loading of Dielectric Microparticles In Air

Published on: February 5, 2017

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Area of Science:

Atomic, Molecular, and Optical (AMO) Physics
Quantum Chemistry
Laser Cooling and Trapping

Background:

Laser cooling has been highly successful for atoms, but challenging for molecules due to their complex energy level structures.
Polar molecules possess permanent electric dipole moments, offering unique opportunities for manipulation with electric fields.
Previous methods for molecular cooling faced limitations in efficiency and the range of molecules treatable.

Purpose of the Study:

To propose and validate a novel method for laser cooling and trapping a broad class of polar molecules.
To specifically demonstrate the feasibility of cooling and trapping titanium (II) oxide (TiO).
To achieve ultra-low temperatures (micrpKelvin range) for trapped polar molecules.

Main Methods:

Utilizing pulsed electric fields to nonadiabatically remix ground-state magnetic sublevels.
Implementing a magneto-optical trap (MOT) configured for a quasicycling J' = J'' -1 transition.
Employing Monte Carlo simulations to model the trapping and cooling dynamics.

Main Results:

Demonstrated the feasibility of cooling titanium (II) oxide (TiO) to temperatures as low as 10 micrpKelvin.
Achieved trapping of TiO molecules with a simulated radiation-pumping-limited lifetime of approximately 80 ms.
The proposed method is applicable to a substantial class of polar molecules.

Conclusions:

The electrostatically remixed magneto-optical trap provides an effective pathway for deep laser cooling of polar molecules.
This technique opens avenues for exploring fundamental physics and applications utilizing ultracold polar molecules.
Titanium (II) oxide (TiO) is shown to be a viable candidate for this advanced molecular cooling method.