The rapid development of optoelectronic technology since mid-1980 has significantly
enhanced the brightness and efficiency of light-emitting diodes (LEDs). LEDs have long …

Smart materials can respond to stimuli and adapt their responses based on external cues
from their environments. Such behavior requires a way to transport energy efficiently and …

Heterogeneous silicon photonics using wafer bonding is reaching maturity with commercial
products for the data center market being shipped in volume. Here we give an overview of …

The field of optical metrology offers a wealth of both practical and theoretical
accomplishments, and can cite any number of academic papers recording such. However …

We will ask and partly answer a few questions. What is the difference between a laser and a
light bulb? In which frequency ranges are lasers available? Which are the sizes and the …

Over the past five decades, LiNbO3 and LiTaO3 single crystals and thin films have been
studied intensively for their exceptional acoustic, electro‐optical, and pyroelectric and …

Photonic crystal fibers (PCFs) are a special class of optical fibers with a periodic
arrangement of microstructured holes located in the fiber's cladding. Light confinement is …

Light and rare earths (RE) have a long lived relationship that dates from the discoveries of
these elements in the nineteenth century. Since then, the increasing comprehension of their …

One of the ensuring stable and reliable electricity production problems is determine the
technical condition of the means of generating electricity. This is necessary since more than …

We demonstrate enhanced light extraction for monochrome top-emitting organic light-
emitting diodes (OLEDs). The enhancement by a factor of 1.2 compared to a reference …