{"id":58195,"date":"2026-05-01T23:25:38","date_gmt":"2026-05-01T23:25:38","guid":{"rendered":"https:\/\/peymantaeidi.net\/stem-cell\/?p=58195"},"modified":"2026-05-01T23:36:12","modified_gmt":"2026-05-01T23:36:12","slug":"scientists-uncover-astonishing-hidden-property-of-light","status":"publish","type":"post","link":"https:\/\/peymantaeidi.net\/stem-cell\/2026\/05\/01\/scientists-uncover-astonishing-hidden-property-of-light\/","title":{"rendered":"Scientists Uncover \u201cAstonishing\u201d Hidden Property of Light"},"content":{"rendered":"
<\/a>
Scientists have discovered that light can naturally develop a hidden \u201chandedness\u201d as it travels through empty space, without the need for special materials or lenses. Credit: SciTechDaily.com<\/figcaption><\/figure>\n

A newly uncovered property of light suggests it may be far more self-sufficient than previously believed.<\/strong><\/p>\n

Researchers at the University of East Anglia<\/a> have identified a previously unknown property of light that allows it to twist, spin, and behave in unusual ways \u2013 without the need for mirrors, materials, or specialized lenses.<\/p>\n

In a finding that could reshape medical diagnostics, data transmission, and future quantum systems, scientists from the UK and South Africa demonstrated that light can be \u201cprogrammed\u201d by taking advantage of its inherent geometry.<\/p>\n

This result challenges long-standing assumptions, showing that light can develop chiral behavior \u2013 meaning it can act like a left or right hand \u2013 while moving freely through space.<\/p>\n

According to the team, this could eventually enable light to carry information, examine biological systems, manipulate matter, and safeguard quantum signals.<\/p>\n

Why Chirality Matters<\/h4>\n

Chirality, or \u201chandedness,\u201d plays a key role in science. Many molecules, including those used in medicines, exist in left- and right-handed forms that appear nearly identical but can behave very differently in the body.<\/p>\n

To distinguish between them, scientists typically rely on specialized light that rotates either clockwise or anticlockwise. Until now, generating and controlling this type of light required carefully designed surfaces, advanced materials, or intense focusing with powerful lenses.<\/p>\n

The new research shows those steps may not be necessary.<\/p>\n

\u201cOur work shows that light can naturally develop this handed behavior all on its own,\u201d said Dr. Kayn Forbes from UEA\u2019s School of Chemistry, Pharmacy and Pharmacology.<\/p>\n

\u201cYou just have to prepare it in the right way. Most people think of light as traveling in straight lines. But scientists can also create structured light \u2013 light whose brightness, shape, and direction are carefully arranged.\u201d<\/p>\n

Twisting, Spinning, and Emerging Effects<\/h4>\n

He continues, \u201cOne extreme example is light that twists as it travels, forming a corkscrew shape known as an optical vortex. Each twist can carry information, making this kind of light valuable for high-speed internet, secure communications, and advanced sensors.\u201d<\/p>\n

\u201cLight can also spin as it travels, depending on how it is polarized. This spin can be left-handed or right-handed \u2013 another form of chirality.\u201d<\/p>\n

Previously, the interaction between light\u2019s spin and its twisting motion was thought to be extremely weak and only observable under carefully controlled conditions. The UEA team found that when light is prepared in a precisely balanced state, its spin can emerge naturally as it travels through empty space.<\/p>\n

\u201cIt starts off with no spin at all,\u201d explained MSc student Light Mkhumbuza, who carried out key experiments. \u201cBut as the beam travels forward, spinning regions appear and separate out \u2013 almost as if the spin was hiding and then revealed itself.\u201d<\/p>\n

No mirrors. No special materials. Just light moving freely.<\/p>\n

The Role of Topology<\/h4>\n

According to Dr. Isaac Nape at the University of the Witwatersrand in Johannesburg, South Africa, the explanation lies in topology \u2013 a branch of mathematics that studies properties that remain unchanged even when objects are stretched or reshaped.<\/p>\n

\u201cTo explain it, imagine a mug and a doughnut,\u201d he said. \u201cYou can morph one into the other without tearing it, because they both have one hole. That hole is a topological feature.\u201d<\/p>\n

\"Ceramic<\/a>
A mug and a doughnut may look different, but in topology they\u2019re identical: both have a single hole that defines their structure. Credit: Shutterstock<\/figcaption><\/figure>\n

Light appears to have its own version of this \u201chole count\u201d \u2013 a hidden topological signature embedded in the arrangement of its polarization. This feature persists as light travels and subtly directs how the beam evolves.<\/p>\n

As the beam moves forward, this internal structure causes spinning behavior to emerge, giving researchers a new way to control light using geometry alone.<\/p>\n

\u201cThis gives us a completely new tuning knob for light. By adjusting its topology, we can decide how and where chirality appears,\u201d said Dr. Nape.<\/p>\n

Future Technologies and Impact<\/h4>\n

\u201cThe implications are wide-ranging,\u201d said Dr. Forbes. \u201cThis work could lead to simpler and more sensitive medical tests, especially in drug development.\u201d<\/p>\n

He continues, \u201cIt could also be used to pack more information into laser beams \u2013 boosting data capacity for communications, including future quantum networks. And because the effect doesn\u2019t rely on fragile materials or precision-engineered surfaces, it could be easier and cheaper to use in real-world technologies.\u201d<\/p>\n

\u201cThis research could lay the foundations for a new generation of light-based technologies, by showing that light\u2019s behavior can be controlled using its own internal geometry,\u201d he added.<\/p>\n

Key future applications:<\/h4>\n