Silicon based organic semiconductor laser

Abstract

The authors demonstrate silicon based visible lasers as potential optical interconnects by combining silicon processed resonators and solution processed light-emitting polymers. The high refractive index and absorption coefficient of silicon at these wavelengths were addressed by developing distributed Bragg reflector resonators on a silicon-on-insulator substrate. The performance of the hybrid structure was characterized and analyzed in comparison to an all-silica counterpart and mechanisms for controlling the number of longitudinal modes and for tuning the emission wavelength were explored.

Nanoimprinted distributed feedback lasers comprising TiO2 thin films: Design guidelines for high performance sensing

“…titanium dioxide (TiO 2 , ), indium tin oxide (ITO, ), or tantal(V)‐oxid (Ta 2 O 5 , ), are usually applied by evaporation techniques. Metals and silicon would provide yet higher refractive indices but have the drawback of introducing significantly greater losses to the system. Dye‐doped lasers operate in the visible wavelength range which is suited to many refractive index sensing applications and the development of optical display devices.…”

Organic solid‐state integrated amplifiers and lasers

“…In contrast to silica, organic materials can form stress-free layers regardless of the substrate and exhibit low polarization dependent loss. Most importantly they can be integrated with silicon [38,39] and are CMOS-compatible, which follows from the possibility to be synthesized independently of other fabrication processes and then simply added at the end of the fabrication flow after all the process involving etching or high-temperatures have been completed. Figure 1 displays integration of Er-doped silicon-rich silicon nitride (SRSN) microdisk resonators with SU-8 polymer waveguides and a polymer clad layer [38].…”

A Lasing Organic Light‐Emitting Diode

“…[1][2][3] The tremendous improvement was made possible mainly by efforts in materials design and synthesis. To realize the potential of disposable plastic lasers covering the visible spectral range for analytical purposes depends on the availability of simple, low-cost fabrication techniques for the resonator.…”