One of the more difficult problems in creating silicon (Si) photonic circuits with active components is that no practical and efficient silicon-based light sources exist (hybrid circuits containing germanium-based or III-V light sources can be used instead).

Researchers at Peking University and Duke University have come up with a geometry that allows for large numbers of single-walled CNTs to be both held in place and easily electrically contacted at both ends of the nanotubes.

Researchers at Xi'an Jiaotong University have created a modified laser-direct-writing process that rapidly creates high-quality glass microlens masters that can be used to replicate polymer arrays.

Researchers at Konkuk University and the National Cancer Center are using the Cerenkov radiation produced in plastic fibers as a signal.

University of Twente, FOM Institute of Atomic and Molecular Physics, and Langevin Institute at École Supérieure de Physique et de Chimie de la Ville de Paris researchers are developing new techniques to improve imaging and focusing in scattering media.

A primary challenge in the 100 Gbit/s or 100G optical interconnect space is the design and manufacture of high-speed, low-cost lasers that can support the several-kilometer distances of a large data center.

Even though age-related macular degeneration and retinitis pigmentosa cause loss of ocular photoreceptors, most of the inner retinal neurons typically survive for a long time.

A team of scientists from the University of Colorado, the National Renewable Energy Laboratory, and the National Institute of Standards and Technology and the University of Gothenburg is pursuing an approach that allows optical manipulation of microparticles with a much higher refractive index.

When fiber Bragg gratings (FBGs) are written into all 120 cores of a multicore optical fiber, great things can happen.

A team at Yale University who last year made random lasers with low spatial coherence has now used those low-coherence lasers for speckle-free imaging.

Deep-space and planetary instruments are challenged by extraordinary temperatures, vibration, radiation, space debris, and other performance-threatening conditions that require engineers to develop rugged optical and photonic components that push spectroscopy to extremes.

Maximizing fluorescence light collection in single- and multiphoton microscopy reduces noise from excitation sources and improves lens performance.

Digital imaging and display technology opens new possibilities for holography. Digital holographic microscopes can display 3D images of living cells in real time on computers, and digital holographic telepresence is emerging on the technological horizon.

A field-portable on-chip holographic microscope images dense and blended biological samples using multiheight lens-free imaging.

A doubly resonant, mid-infrared degenerate optical parametric oscillator (OPO) produces an extremely broad instantaneous output bandwidth, eliminating the need for the finicky tuning required in nondegenerate OPOs.

Techniques now exist for greatly increasing the bandwidth of germanium photodetectors fabricated in silicon integrated photonics, taking advantage of newer, more complex structures created via CMOS processes.