Photonics/​Optics

New Study Showcases 3D Photonics with Record Performance for AI

Artificial intelligence systems promise transformative advancements, yet their growth has been limited by energy inefficiencies and bottlenecks in data transfer. Researchers at Columbia Engineering have unveiled a groundbreaking solution: a 3D photonic-electronic platform that achieves unprecedented energy efficiency and bandwidth density, paving the way for next-generation AI hardware. Read on to learn more.

Revolutionizing Dynamic Facial Projection Mapping: A Leap Forward in Augmented Reality

Augmented reality has become a hot topic in the entertainment, fashion, and makeup industries. Though a few different technologies exist in these fields, dynamic facial projection mapping is among the most sophisticated and visually stunning ones. Read on to learn more about it.

Ultra-Broadband Photonic Chip Boosts Optical Signals

Researchers have developed a photonic chip-based traveling wave parametric amplifier that achieves ultra-broadband signal amplification in an unprecedentedly compact form. Read on to learn more about it.

Scientists Use Distant Sensor to Monitor American Samoa Earthquake Swarm

Residents of the Manu’a Islands in American Samoa were feeling the earth shake, raising concerns of an imminent volcanic eruption or tsunami. Scientists from the U.S. Geological Survey used machine learning and a technique called template matching on shaking data recorded from a single seismic sensor located 250 kilometers away to locate the source of the shaking. Read on to learn more.

Scientists Propose Laser Scalpel with a ‘Curved’ Blade

Changing the shape of the blade will expand the possibilities of using the laser in medicine.

Handheld Space Microscope

Innovators at NASA Johnson Space Center have developed a handheld digital microscope to fill the critical microscopy needs of human space exploration by providing flight crews in situ hematological diagnostic and tracking ability to assess and monitor crew health in the absence of gravity. Read on to learn more.

Single-Shot Polarization Imaging System Provides Complete Picture

Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences have developed a compact, single-shot polarization imaging system that can provide a complete picture of polarization. Read on to learn more about it.

An Innovative Sensing Platform for Ultrahigh Sensitivity in Conventional Sensors

New research unlocks the power of exceptional points (EPs) for advanced optical sensing. In a study published in Science Advances , a team showed that these unique EPs — specific conditions in systems where extraordinary optical phenomena can occur — can be deployed on conventional sensors to achieve a striking sensitivity to environmental perturbations. Read on to learn more.

New AR Glasses Use AI-Enhanced Holographic Imaging

Researchers in the emerging field of spatial computing have developed a prototype augmented reality headset that uses holographic imaging to overlay full-color, 3D moving images on the lenses of what would appear to be an ordinary pair of glasses. Read on to learn more about it.

Say Goodbye to the Dots and Dashes to Enhance Optical Storage Media

Purdue researchers have created technology aimed at replacing Morse code with colored “digital characters” to modernize optical storage. They are confident the advancement will help with the explosion of remote data storage during and after the COVID-19 pandemic. Read on to learn more.

Levitating Objects with Light

Researchers have designed a way to levitate and propel objects using only light by creating specific nanoscale patterning on the objects' surfaces. The work could be a step toward developing a spacecraft that could reach the nearest planet outside of our solar system in 20 years, powered and accelerated only by light. Read on to learn more.

Visible-Light Lasers That Fit on a Fingertip

Researchers have created visible lasers of very pure colors from near-ultraviolet to near-infrared that fit on a fingertip. The colors of the lasers can be precisely tuned and extremely fast — up to 267 petahertz per second, which is critical for applications such as quantum optics. Read on to learn more.

Quantum Sensing to Engineer Photonic Sensors

A Bristol-led team of physicists has found a way to operate mass manufacturable photonic sensors at the quantum limit. This breakthrough paves the way for practical applications such as monitoring greenhouse gases and cancer detection. Read on to learn more.

A New Method Makes High-Resolution Imaging More Accessible

Researchers have made it possible to expand tissue twentyfold in a single step. This simple, inexpensive method could pave the way for nearly any biology lab to perform nanoscale imaging. Read on to learn more.

Ultra-Compact Camera Technology Optimized for VR/AR Devices

Researchers have developed an optical design technology that dramatically reduces the volume of cameras with a folded lens system utilizing “metasurfaces,” a next-generation nano-optical device. Read on to learn more.

Spiral Ladder-Inspired Tool That Allows Precision Control of Light Direction and Polarization

Researchers have designed a spiral ladder-inspired tool that allows precision control of light direction and polarization to control the direction of the emitted beam and the polarization of the light, while using a precisely engineered resonance of the structure. Read on to learn more.

A Methodology to Read QR Codes on Uneven Surfaces

A team from the University of Barcelona and the Universitat Oberta de Catalunya has designed a methodology that facilitates the recognition of QR codes in these physical environments, where reading is more complicated. Read on to learn more.

Researchers Develop a Wide-Bandwidth, Low-Polarization Semiconductor Optical Amplifier

Researchers have successfully developed a wide-bandwidth, low-polarization semiconductor optical amplifier based on tensile-strained quantum wells. The study, published in the journal Sensors, presents a significant advancement in optical communication technology, addressing the growing demand for higher bandwidth and lower polarization sensitivity. Read on to learn more.

Camera Inspired by the Human Eye Can Improve How Robots See, React

A team led by University of Maryland computer scientists invented a camera mechanism that improves how robots see and react to the world around them. Inspired by how the human eye works, their innovative camera system mimics the tiny involuntary movements used by the eye to maintain clear and stable vision over time. Read on to learn more.

Nanoscale Device Points the Way to Future Wireless Communication Channels

In a paper published in the journal Nature Nanotechnology, a team of Caltech engineers reports building a metasurface patterned with miniscule tunable antennas capable of reflecting an incoming beam of optical light to create many sidebands, or channels, of different optical frequencies. Read on to learn more.

Enabling High-Capacity Space Communication

Researchers have achieved data rates as high as 424Gbit/s across a 53-km turbulent free-space optical link using plasmonic modulators — devices that uses special light waves called surface plasmon polaritons to control and change optical signals. The new research lays the groundwork for high-speed optical communication links that transmit data over open air or space. Read on to learn more.

New Ultrafast Imaging Technique Provides Insight into Combustion Processes

A team of scientists has developed an ultrafast imaging technique, called femtosecond laser sheet-compressed ultrafast photography, that can compile videos of incredibly transient details. Read on to learn more about it.

Seeing Like a Butterfly: Optical Invention Enhances Camera Capabilities

Butterflies can see more of the world than humans, including more colors and the field oscillation direction, or polarization, of light. Other species, like the mantis shrimp, can sense an even wider spectrum of light, as well as the circular polarization, or spinning states, of light waves. Inspired by these abilities in the animal kingdom, researchers have developed an ultrathin optical element known as a metasurface, which can attach to a conventional camera and encode the spectral and polarization data of images captured in a snapshot or video through tiny, antenna-like nano-structures that tailor light properties.

An OLED for Compact, Lightweight Night Vision

A new type of organic light emitting diode (OLED) could replace bulky night vision goggles with lightweight glasses, making them cheaper and more practical for prolonged use, according to University of Michigan researchers. Read on to learn more.

New Technology Uses Light to Engrave Erasable 3D Images

Imagine if physicians could capture 3D projections of medical scans, suspending them inside an acrylic cube to create a hand-held reproduction of a patient’s heart, brain, kidneys, or other organs. Then, when the visit is done, a quick blast of heat erases the projection, and the cube is ready for the next scan. A new report by researchers at Dartmouth and Southern Methodist University outlines a technical breakthrough that could enable such scenarios, and others, with widespread utility. Read on to learn more.

New Computer Vision-Based System Monitors Seasonal Dynamics of Tropical Water

Researchers have developed a new way to map water on land in the tropics. Called the UC Berkeley Random Walk Algorithm WaterMask, this advanced monitoring technology uses L-band microwaves from the Cyclone Global Navigation Satellite System to “see” water hidden beneath visual barriers, like tree canopies and clouds. Read on to learn more.

Coating Hides Temperature Change from Infrared Cameras

If the outside of clothing or a vehicle were covered with the coating, an infrared camera would have a harder time distinguishing what is underneath. Read on to learn what this means.

Self-Propelled Nanorobots

The “nanoswimmers” could be used to remediate contaminated soil, improve water filtration, or even deliver drugs to targeted areas of the body.

New High-Performance Ultrafast Lasers That Fit on a Fingertip

In a newly published paper in the journal Science, researcher Qiushi Guo demonstrated a novel approach for creating high-performance, ultrafast lasers on nanophotonic chips. His work centers on miniaturizing mode-lock lasers. Read on to learn more.