The emergence of silicon photonics over the past two decades has established silicon as a
preferred substrate platform for photonic integration. While most silicon-based photonic …

Vertical-external-cavity surface-emitting lasers (VECSELs) are the most versatile laser
sources, combining unique features such as wide spectral coverage, ultrashort pulse …

Photonics has been extensively exploited in the visible and near-infrared spectral ranges.
Sensing of liquids and gases is a promising area for advancing of the photonics also in the …

Mid‐infrared (MIR) semiconductor laser sources are essential for applications in gas
detection, infrared imaging, and high‐speed free space optical communications. At present …

On-chip devices for absorption spectroscopy and Raman spectroscopy have been
developing rapidly in the last few years, triggered by the growing availability of compact and …

The mid-infrared (MIR) wavelength range of the electromagnetic spectrum offers a number
of applications of growing importance such as photonic sensors for environment, industry or …

A method for realizing a synchronized watt-level dual-wavelength vertical-external-cavity
surface-emitting-laser (VECSEL) by using a tilted birefringence filter (BRF) is demonstrated …

Lead telluride (PbTe) is one of the reliable candidates for infrared (IR) optoelectronics with
optimum band-gap as well as excellent photoelectric properties. Great interests had been …

Molecular beam epitaxy of IVeVI semiconductors has long been used both for fabrication of
low-dimensional structures [1e4] and infrared optoelectronic devices [5e11]. The …

A tunable PbTe based mid-infrared vertical external cavity surface emitting laser is
described. The active part is a∼ 1 μ m thick PbTe layer grown epitaxially on a Bragg mirror …