This record-breaking crystal can transform from mirror-like to glass-like, opening the door to tiny optical chips, AR displays, and smart contact lenses. Creating truly “invisible” wearable technology such as smart contact lenses and ultrathin augmented reality glasses will require a radical rethink of how optical devices are built. Instead of relying on conventional bulky components, [...]

A quantum metasurface breakthrough boosts terahertz detection by 20 times, bringing practical THz technology a step closer. Detecting light and radiation is essential across the electromagnetic spectrum, but some regions remain difficult to work with. One of the biggest challenges involves terahertz (THz) radiation, which sits between microwaves and infrared light. Existing detectors for these…

submitted by Sal to photonics
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https://phys.org/news/2026-06-spectrometer-chip-real-chemical-wearables.html

Scientists have finally packed a laboratory-class ultrafast laser onto a tiny photonic chip. Ultrafast lasers generate bursts of light that last only a few hundred femtoseconds, each one just a quadrillionth of a second long. These extremely short pulses are used in a wide range of technologies, including precision manufacturing, eye surgery, and optical frequency [...]

A new MIT-designed lidar chip uses specially engineered antennas to reduce interference and widen the sensor’s field of view. From self-driving cars navigating busy streets to drones surveying disaster zones, lidar has become one of the most important technologies for helping machines perceive the world in three dimensions. By sending out rapid pulses of infrared [...]

Penn scientists may have found a way to power future AI with exotic light-matter particles instead of electrons. Eighty years after the debut of ENIAC, the world’s first general-purpose electronic computer, researchers at the University of Pennsylvania are exploring a radically different future for computing. Instead of depending entirely on electrons, scientists are now looking [...]

Scientists have shown that sunlight alone can generate quantum-correlated photons capable of producing “ghost images,” a feat once thought to require stable lasers. Quantum optics experiments typically rely on carefully controlled lasers to create correlated or entangled photon pairs. These photon pairs are produced through a process known as spontaneous parametric down-conversion (SPDC), in…

Researchers have developed a deep-learning-based surrogate model that dramatically speeds up simulations of nonlinear optical processes used in advanced laser systems. Simulating the complex optical behavior behind ultrafast laser systems requires enormous computing power, creating a major challenge for experiments that depend on rapid feedback. Researchers from Stanford University, the…

A subtle mechanical adjustment reveals a powerful way to control the quantum behavior of embedded defects. Researchers have identified a new method to control the quantum behavior of tiny imperfections in diamond by gently stretching or compressing the crystal. This approach could lead to a new generation of sensors capable of detecting pressure, temperature, and [...]

A newly uncovered property of light suggests it may be far more self-sufficient than previously believed. Researchers at the University of East Anglia have identified a previously unknown property of light that allows it to twist, spin, and behave in unusual ways – without the need for mirrors, materials, or specialized lenses. In a finding [...]

MIT researchers found that chaotic laser light can transform into a precise, stable beam. This breakthrough enables much faster, high-resolution imaging of how drugs move into the brain. Researchers at MIT have identified an unexpected effect in optical physics that could lead to a new kind of bioimaging technology with both higher speed and strong [...]

Scientists have achieved a major step toward chip-scale ultraviolet light by converting red light into powerful UV within a tiny photonic device. Ultraviolet light, beyond what comes naturally from the sun, plays a central role in modern technology, including sterilization, biological imaging, and chip manufacturing. Researchers also expect tiny sources of UV light on photonic [...]

A new method reveals hidden order in quantum systems, potentially transforming how they are measured and used. A long-standing challenge in quantum physics may finally have a practical solution. Researchers in Japan have developed a new way to identify complex quantum states in a single step, potentially removing one of the biggest bottlenecks in building [...]

A novel imaging method captures ultrafast events with unprecedented detail by combining laser encoding and AI reconstruction. Researchers have introduced a new imaging method that reveals far more detail about ultrafast events in the microscopic world than earlier approaches. The technique allows scientists to observe and study processes that occur within hundreds of femtoseconds with [...]

Quantum dot–based time-bin QKD achieves stable, long-distance secure communication with practical performance. Quantum key distribution is the most advanced area of quantum cryptography and offers fundamentally secure communication for the future quantum internet. Solid-state light sources such as semiconductor quantum dots (SQDs) have drawn significant attention because they can generate…

By manipulating ultrafast quantum particles under extreme conditions, researchers have begun to probe growth dynamics in unprecedented detail. Why do patterns emerge as surfaces grow, whether in crystals, flames, or living systems? Physicists have long turned to the Kardar–Parisi–Zhang (KPZ) equation, proposed in 1986, as a unifying description of these processes. This theory captures how [...]

Photonic devices, which rely on light instead of electricity, have the potential to be faster and more energy efficient than today’s electronics. They also present a unique opportunity to develop devices using soft materials, such as polymers and gels, which are poor conductors of electricity, but are easier to manufacture and more environmentally friendly. The development of these…

Researchers have discovered that perovskite crystals can rapidly and reversibly change shape when exposed to light, revealing a unique behavior not seen in traditional semiconductors. A new study from researchers at the University of California, Davis suggests that perovskites could enable a new class of light-responsive semiconductor devices. Published in Advanced Materials, the research shows…

A new laser-powered wireless system uses light to deliver data at speeds exceeding 360 Gbps. It could enable faster, more efficient indoor networks while reducing interference and energy use. Modern life runs on fast, reliable wireless connections. Video calls, streaming, virtual reality, and connected devices all depend on networks that already support billions of users. [...]

Researchers have created an ultra-compact nanolaser that could transform how data moves within microchips, replacing electrical signals with light. The idea of computers communicating with light instead of electricity is moving closer to reality, thanks to a breakthrough nanolaser developed at the Technical University of Denmark (DTU). Described in Science Advances, the device is small [...]

A reengineered version of a classic crystal reveals unexpected behavior, hinting at new possibilities for faster, more efficient information transfer. A new twist on a long-known material could help push quantum computing forward and cut energy use in modern data centers, according to a team led by Penn State researchers. Barium titanate, first identified in [...]

Coherent optics, photonic line systems, and software agents are helping cloud providers and telco companies to manage the explosive AI workload demands on fiber networks – across cutting-edge interconnect systems, upgraded longhaul infrastructure, and emerging mobile access networks. As told to RCR by Ciena at MWC. In sum – what to know: Fiber-first scale – […]

A long-standing limitation in photonics may be giving way to a new regime of light control. Photonic technologies have struggled to shrink at the same pace as electronics. The limitation comes from basic physics. The uncertainty principle links how tightly light can be confined to its wavelength, which in the visible and near-infrared range can [...]

Scientists have found a way to trap light in an extremely thin layer, potentially reshaping how future photonic devices are built. Scientists from the Faculty of Physics at the University of Warsaw, working with teams from the Łódź University of Technology, the Warsaw University of Technology, and the Polish Academy of Sciences, have created a [...]

A new ultrathin photodetector captures light across the full spectrum in just 125 picoseconds, opening the door to faster, smarter imaging technologies. Engineers at Duke University have built the fastest pyroelectric photodetector ever demonstrated, a device that senses light by capturing the heat it produces when absorbed. This ultrathin sensor can detect light across the [...]

A single layer of atoms may seem too thin to meaningfully interact with light, yet materials like tungsten disulfide are reshaping what is possible in nanophotonics. Researchers have now found a way to dramatically strengthen these interactions. Atomically thin semiconductors such as tungsten disulfide (WS₂) are emerging as key materials for next-generation photonic technologies. Although [...]

A new Stanford-designed optical amplifier uses energy recycling in a resonator to deliver strong, low-noise amplification with far less power. Light underpins much of today’s technology, from televisions and satellites to the fiber optic cables that transmit internet data across continents. A team of Stanford physicists has now developed a way to push light-based systems [...]

A team in China has demonstrated the simultaneous teleportation of multiple sideband qumodes in a continuous-variable system, overcoming a longstanding technical barrier. Quantum teleportation is one of the key tricks behind entanglement-based quantum communication. It does not move matter from place to place. Instead, it transfers the information that defines a quantum state from one [...]

By harnessing two natural timescales in resonator arrays, researchers created photonic chips that reliably produce multiple harmonics without active compensation. For decades, scientists and engineers have steadily advanced technologies that control and manipulate light. These tools now underpin everything from ultra-precise atomic clocks to the massive data flows moving through modern data…

Caltech’s new fiber-like photonic chips achieve record-low visible-light loss, enabling more coherent lasers and next-generation quantum and sensing technologies. Caltech researchers have created a technique that allows light to travel across silicon wafers with extremely low signal loss, nearing the performance of optical fiber even at visible wavelengths. Achieving this level of efficiency on a…