There has been an interesting debate on the quantum versus classical origin of ghost imaging in thermal light. To clarify this quantum-classical dilemma, Lixiang Chen at Xiamen University of China formulated a density matrix ...
Quantum Physics
Aug 31, 2021
0
79
A new method developed at the University of Bonn simplifies ultra-precise adjustment for quantum optics experiments.
Optics & Photonics
Aug 25, 2021
1
1913
A simple camera system paired with a sophisticated image-processing algorithm can achieve faster and more accurate reconstructions of particle flow.
Optics & Photonics
Aug 25, 2021
0
4
Shining a beam of light into potentially contaminated water samples may hold the key to real-time detection of hydrocarbons and pesticides in water.
Optics & Photonics
Jul 15, 2021
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557
Researchers at ETH Zurich have trapped a tiny sphere measuring a hundred nanometres using laser light and slowed down its motion to the lowest quantum mechanical state. This technique could help researchers to study quantum ...
Nanophysics
Jul 15, 2021
1
5916
Scientists have developed a high-efficiency beam steering angle expander consisting of two liquid crystal polymeric diffractive optical elements. For a LiDAR (light detection and ranging) operating at 905 nm, the steering ...
Optics & Photonics
Jul 1, 2021
0
3
The ability to precisely control the various properties of laser light is critical to much of the technology that we use today, from commercial virtual reality (VR) headsets to microscopic imaging for biomedical research. ...
Optics & Photonics
Jun 29, 2021
0
225
Three years ago, Arthur Ashkin won the Nobel Prize for inventing optical tweezers, which use light in the form of a high-powered laser beam to capture and manipulate particles. Despite being created decades ago, optical tweezers ...
General Physics
Jun 26, 2021
0
24
If you have witnessed the rainbow pattern that dances on the surface of a CD or DVD, then you have seen diffraction at work. The disk acts as a diffraction grating, an optical element that disperses light into various colors ...
Optics & Photonics
Jun 2, 2021
0
16
The promise of a quantum internet depends on the complexities of harnessing light to transmit quantum information over fiber optic networks. A potential step forward was reported today by researchers in Sweden who developed ...
Quantum Physics
May 10, 2021
0
32
