Nanolaminate-based design for UV laser mirror coatings

Optimized Mirror Coatings for LIGO

High Speed UV Laser Beam Scanning by Polygon Mirror

Since the stereolithograpy system appeared on the market, various rapid prototyping machines based on the layer laminated manufacturing process have emerged one after the other, the range of applications of which is classified according to their features. Of these, stereolithogrraphy methods which make use ofphotocurable resin as material and laser beam as processing tools are gradually being e...

Design and fabrication of scanning mirror for laser display

A 1500mm 1200 mm silicon scanning mirror for laser display has been designed and fabricated by deep inductively coupled plasma reactive ion etching (ICPRIE) and flip chip bonding technology. It is a vertically driven electrostatic scanner and composed of two structures having vertical comb fingers. The upper structure is composed of a scanning mirror plate, two torsion bars, a supporting frame ...

Development of Mirror Coatings for Gravitational Wave Detectors

The first detections of gravitational waves, GW150914 and GW151226, were associated with the coalescence of stellar mass black holes, heralding the opening of an entirely new way to observe the Universe. Many decades of development were invested to achieve the sensitivities required to observe gravitational waves, with peak strains associated with GW150914 at the level of 10−21. Gravitational w...

Optimized multilayer dielectric mirror coatings for gravitational wave interferometers

The limit sensitivity of interferometric gravitational wave antennas is set by the thermal noise in the dielectric mirror coatings. These are currently made of alternating quarter-wavelength high/low index material layers with low mechanical losses. The quarter-wavelength design yields the maximum reflectivity for a fixed number of layers, but not the lowest noise for a prescribed reflectivity....