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Updated: May 3, 2026

A Rapid Laser Probing Method Facilitates the Non-invasive and Contact-free Determination of Leaf Thermal Properties

A Rapid Laser Probing Method Facilitates the Non-invasive and Contact-free Determination of Leaf Thermal Properties

Published on: January 7, 2017

Laser-type cooling with unfiltered sunlight.

Amanda Younes¹, Wesley C Campbell¹

¹Department of Physics and Astronomy, University of California, Los Angeles, 90095 Los Angeles, California, USA.

Physical Review. E

|April 18, 2024

Summary

This summary is machine-generated.

Researchers demonstrate cooling a trapped ion to its ground state using unfiltered sunlight. This "cooling by heating" method utilizes thermal light, offering a novel approach to achieving ultra-low temperatures.

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Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

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Published on: March 30, 2017

Area of Science:

Quantum physics
Optics
Thermodynamics

Background:

Traditional cooling methods rely on cold baths or laser scattering.
Emerging

Purpose of the Study:

To explore

Main Methods:

Utilizing unfiltered sunlight (5800K) to cool a trapped ion.
Analyzing thermal light statistics in a single-mode fiber.
Experimentally modifying blackbody spectrum in quasi-one-dimensional confinement.

Main Results:

Demonstrated a method for cooling a trapped ion to its motional ground state.
Showcased the modification of thermal light spectrum within a fiber.
Provided quantitative estimates for cooling rates using sunlight.

Conclusions:

Sunlight can be effectively used for ion cooling, challenging conventional methods.
The