Scientists have harnessed Internet-transmitting fiber-optic cables to overcome a long-standing geophysical challenge: identifying where seismic noise in the ocean originates. Tiny vibrations of Earth called microseisms are ...
Earth Sciences
Oct 3, 2022
2
344
In molecules, the atoms vibrate with characteristic patterns and frequencies. Vibrations are therefore an important tool for studying molecules and molecular processes such as chemical reactions. Although scanning tunneling ...
Optics & Photonics
Sep 21, 2022
0
79
One would be hard-pressed to take a walk outside without hearing the sounds of calling animals. During the day, birds chatter back and forth, and as night falls, frogs and insects call to defend territories and to attract ...
Plants & Animals
Sep 14, 2022
0
89
Researchers have developed a label-free and non-invasive Raman spectroscopy approach that can acquire microscopic images of biological samples and identify a wide range of biomolecules with unprecedented speed and sensitivity.
Optics & Photonics
Aug 17, 2022
0
17
Surface modification of micro-nanoparticles at the atomic and close-to-atomic scales is of great importance to their applications in a variety of fields, such as energy storage, catalysis, sensors, and biomedicine. In order ...
Nanomaterials
Jul 13, 2022
0
15
A research team from Carnegie Mellon University and Columbia have combined two emerging imaging technologies to better view a wide range of biomolecules, including proteins, lipids and DNA, at the nanoscale. Their technique, ...
Biochemistry
May 18, 2022
0
157
A team of researchers affiliated with several institutions in China has found that quantum key distribution (QKD) networks can be used to accurately measure ground vibration. In their paper published in the journal Physical ...
The vibrational modes of nanomechanical resonators are analogous to different notes of a guitar string and have similar properties such as frequency (pitch) and lifetime. The lifetime is characterized by the quality factor, ...
Nanophysics
May 12, 2022
1
173
Oak Ridge National Laboratory researchers used the nation's fastest supercomputer to map the molecular vibrations of an important but little-studied uranium compound produced during the nuclear fuel cycle for results that ...
Analytical Chemistry
May 5, 2022
0
50
Stable packets of light waves—called optical solitons—are emitted in ultrashort-pulse lasers as a chain of light flashes. These solitons often combine into pairs with very short temporal separation. Introducing atomic ...
Optics & Photonics
Apr 22, 2022
0
711
