We propose a curved erbium doped aluminum oxide (Al2O3:Er) distributed feedback (DFB) laser for a reliable integrated photonics light source. The curved structure allows a compensation for radially varying film thickness in Al2O3:Er deposition process. OCIS codes: (130.0130) Integrated optics; (130.3120) Integrated optics devices; (140.3460) Lasers; (130.2790) Guided waves.

The corrosion resistance of a Magnesium alloy is low and needs to be improved. This research aimed at corrosion-resistance improvement by supatterd deposition aluminium film, which is formed on the surface of AZ91 Magnesium-alloy. Corrosion resistance performed polarization curve measurement, was evaluated in quest of the corrosion rate using the Tafel extrapolation method, and conducted surfac...

A reliable and CMOS-compatible deposition process for amorphous Al2O3 based active photonic components has been developed. Al2O3 films were reactively sputtered, where process optimization was achieved at a temperature of 250 C, with a deposition rate of 8.5 nm/min. With a surface roughness of 0.3 nm over a 1 μm area, background optical losses as low as 0.1 dB/cm were obtained for undoped films...

Vertically self-aligned ZnO nanorods and nanotubes are fabricated on Si substrates by atomic layer deposition with the assistance of anodic aluminum oxide at 250°C. These nanostructures are equal in height, isolated, and vertical to the Si substrate. With 550 deposition cycles, we can fabricate regular arrays of ZnO nanorods with an average diameter of 70 nm and with a height of 470 nm. In part...

We have developed a straightforward method to tune the wettability of an aluminum substrate within a contact angle (CA) range from 2(°) to 170(°) by chemical deposition in CuCl2 solution and fluoroalkylsilane (FAS) modification. The CA of the as-deposited surface decreases with deposition time due to the growth of fractal copper dendrites, which enhance the surface roughness significantly. Afte...

This paper presents a post-packaging tuning process for microresonators by PLD (pulsed laser deposition). The microresonators are first hermetically packaged using a RTP (rapid thermal processing) aluminum-to-silicon nitride bonding process. The resonator mass is then altered by adding materials on the surface of the structure using PLD to achieve the desired resonant frequency. The demonstrate...