The periodic table of elements (often known simply as the periodic table) has been helping scientists with their work for a little over 150 years. The handy visual reference guide organizes known ...

The modern periodic table, arranged in rows and columns, was first introduced by Dmitri Mendeleev in 1869. At the time, it included the known elements and their properties, but Mendeleev predicted ...

The colors of rubies and emeralds are so striking that they define shades of red and green – ruby red and emerald green. But ...

Space is home to a great many oddities, and even chemistry gets strange out there. In fact, there are even some molecules ...

On the periodic table, semiconductors (also known as metalloids ... Each photon has its own wavelength, corresponding to a color. Fine-tuning semiconductor devices using this effect allows ...

Phosphorus, the vastly underappreciated 15 th element on the periodic table, is essential to all ... in starlight cannot be seen in the optical wavelength, but only in the near-infrared or the ...

An external-cavity wavelength-swept laser, characterized by its exceptional temporal coherence and extensive tuning range, serves as a crucial light source for cutting-edge fields such as fiber ...

Eleven non-metals are gases at room temperature, including oxygen and chlorine. One non-metal, bromine, is a liquid at room temperature. The other non-metals are solids at room temperature ...

The paper is published in the journal Nature. In a world-first, scientists used precisely controlled optical traps, known as "magic-wavelength optical tweezers," to create a highly stable ...

commonly referred to as the “silicon group” in the periodic table. This innovative laser is constructed from stacked ultrathin layers of silicon-germanium-tin and germanium-tin. Remarkably, it is the ...

Sub-wavelength optics is the study of light on a spatial scale smaller than its wavelength. Conventionally, the minimum length scale on which a beam of light can operate is equal to half its ...