Shaping light lets 2-D microscopes capture 4-D data

Rice University researchers have added a new dimension to their breakthrough technique that expands the capabilities of standard laboratory microscopes.     Two years ago, the Rice lab of chemist Christy Landes introduced super temporal resolution microscopy, a technique that allowed researchers to image fluorescent molecules 20 times faster than traditional lab cameras normally allow….

Single-laser techniques make reproducible artwork on metal without dye or paint

A variety of laser-based techniques can be used to produce colorful artwork on metals. However, each approach typically requires a different type of laser and very specific settings. In a new study, researchers describe how to use a single commercially available laser to achieve three techniques for laser colorization on metal, making the techniques more…

New optical memory cell achieves record data-storage density

Researchers have demonstrated a new technique that can store more optical data in a smaller space than was previously possible on-chip. This technique improves upon the phase-change optical memory cell, which uses light to write and read data, and could offer a faster, more power-efficient form of memory for computers. In Optica, The Optical Society’s journal for high impact…

Researchers discover anti-laser masquerading as perfect absorber

Researchers at Duke University have discovered that a perfect absorber of electromagnetic waves they described in a 2017 paper can easily be tweaked into a sort of “time-reversed laser” known as a coherent perfect absorber (CPA). A laser is a device that transforms energy into coherent light, meaning the light waves are perfectly aligned with…

A laser system built on principles of supersymmetry

A team of researchers from the University of Central Florida and Michigan Technological University has developed a laser system concept built on the principles of supersymmetry. In their paper published in the journal Science, the group reports that their system is meant to solve the problem of producing more light with a compact laser system….

Research team develops a high-performance quantum dot mode-locked laser on silicon

Ten years into the future. That’s about how far UC Santa Barbara electrical and computer engineering professor John Bowers and his research team are reaching with the recent development of their mode-locked quantum dot lasers on silicon. It’s technology that not only can massively increase the data transmission capacity of data centers, telecommunications companies and…

Fiber laser system emits exceptionally pure light

Recently researchers from Massachusetts have developed a novel fiber laser system that has a compact size and is able to emit light with a high level of spectral purity. Moreover, the fiber laser’s light remains unchanged to environmental conditions. The researchers confirm that the novel laser system will be useful for future scientific applications that…

New nano-sized optical fiber determines waves from live cells

Recently, researchers from California have developed a totally new nanofiber device that is almost 100 times thinner than a human hair. Moreover, the nano-sized optical fiber is highly sensitive and is able to determine forces down to 160 femtonewtons that are ten trillion times smaller than a newton. Thus, the researchers put the optical fibers…

Scientists move quantum optic networks a step closer to reality

Scientists have moved quantum optic networks a step closer to reality. The ability to precisely control the interactions of light and matter at the nanoscale could help such a network transmit larger amounts of data more quickly and securely than an electrical network. A team of researchers at the U.S. Department of Energy’s (DOE) Argonne…