نتایج جستجو برای: microdisk
تعداد نتایج: 516 فیلتر نتایج به سال:
We report an experimental observation of strong variations of quality factor and mode splitting among whispering-gallery modes with the same radial order and different azimuthal orders in a scattering-limited microdisk resonator. A theoretical analysis based on the statistical properties of the surface roughness reveals that mode splittings for different azimuthal orders are uncorrelated, and v...
A novel type of nanolasers, which combines the advantages of photonic crystal lasers and microdisk lasers, has been demonstrated based on InAlGaAs/InGaAs quantum wells using pulsed optical pumping at room temperature. It incorporates the properties of small footprint, small mode volume, and submilliwatt threshold, and favors vertical emission. We believe that this type of laser acts as a promis...
Recently we have investigated the possibility of fabricating optically active microstructures which may potentially be of use in future photonic or optoelectronic circuits. As a first step in this direction we demonstrated the concept of a whispering-gallery mode microdisk laser. ly2 The device makes use of optical modes at the edge of a thin semiconductor dielectric disk which is 2-10 pm in di...
Deep ultra-violet semiconductor lasers have numerous applications for optical storage and biochemistry. Many strategies based on nitride heterostructures and adapted substrates have been investigated to develop efficient active layers in this spectral range, starting with AlGaN quantum wells on AlN substrates and more recently sapphire and SiC substrates. Here we report an efficient and simple ...
We demonstrate the simultaneous generation of second and third harmonic signals from a telecom wavelength pump in gallium phosphide (GaP) microdisk. Using analysis power scaling both outputs calculations nonlinear cavity mode coupling factors, we study contributions to signal direct cascaded sum frequency processes. find that despite relatively high material absorption GaP at wavelength, these ...
GeSn alloys are promising candidates for complementary metal-oxide-semiconductor-compatible, tunable lasers. Relaxation of residual compressive strain in epitaxial has recently shown promise improving the lasing performance. However, suspended device configuration that is thus far introduced to relax destined limit heat dissipation, hindering Herein demonstrated strain-free microdisk laser devi...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید