Photonic technologies offer numerous functionalities that can be used to realize
astrophotonic instruments. The most spectacular example to date is the ESO Gravity …

Thanks to its unique properties, glass plays a fundamental role in science and technology,
especially in optics and photonics. For instance, its transparency has been exploited in the …

A pilot study on laser 3D printing of inorganic free-form micro-optics is experimentally
validated. Ultrafast laser direct-write (LDW) nanolithography is employed for structuring …

Direct imaging and spectroscopy is the likely means by which we will someday identify,
confirm, and characterize an Earth-like planet around a nearby Sun-like star. This Chapter …

Hi-5 is the L'-band (3.5-4.0 μm) high-contrast imager of Asgard, an instrument suite in
preparation for the visitor focus of the VLTI. The system is optimized for high-contrast and …

Context. NOTT (formerly Hi-5) is a new high-contrast L′ band (3.5–4.0 µm) beam combiner
for the VLTI designed with an ambitious aim to be sensitive to young giant exoplanets down …

Astrophotonics represents a cutting-edge approach in observational astronomy. This paper
explores the significant advancements and potential applications of astrophotonics …

Femtosecond laser direct writing (FsLDW) three-dimensional (3D) photonic integrated
circuits (PICs) can realize arbitrary arrangement of waveguide arrays and coupling devices …

Integrated-optic components are being increasingly used in astrophysics, mainly where
accuracy and precision are paramount. One such emerging technology is nulling …

We present numerical characterizations of the wavefront sensing performance for few-mode
photonic lantern wavefront sensors (PLWFSs). These characterizations include calculations …