Programmable multifunctional integrated nanophotonics
Programmable multifunctional integrated nanophotonics (PMIN) is a new paradigm that aims at designing common integrated optical hardware configurations, which by suitable programming can implement a variety of functionalities that can be elaborated for basic …
Photonics of DNA/ruthenium(II) complexes
In this review, we describe the investigation of a ruthenium complex-based, AC voltage-driven, electrochemiluminescent (ECL) device first. The ECL turn-on response time and intensity were dramatically improved by introducing the AC method. The turn-on …
From nanoscopic to macroscopic photo-driven motion in azobenzene-containing materials
The illumination of azobenzene molecules with UV/visible light efficiently converts the molecules between trans and cis isomerization states. Isomerization is accompanied by a large photo-induced molecular motion, which is able to significantly affect the …
Fluorescent nanodiamonds: past, present, and future
Multi-color fluorescent nanodiamonds (FNDs) containing a variety of color centers are promising fluorescent markers for biomedical applications. Compared to colloidal quantum dots and organic dyes, FNDs have the advantage of lower toxicity, exceptional …
A scatterer-assisted whispering-gallery-mode microprobe
A fiber-based whispering-gallery-mode (WGM) microprobe, combining both the high optical field enhancement of the WGMs and the compact structure of the optical fiber, is highly desired for sensing and imaging. Here we report a WGM microsphere resonator coupled …
Power-efficient generation of two-octave mid-IR frequency combs in a germanium microresonator
Octave-spanning frequency comb generation in the deep mid-infrared (>5.5 ?m) typically requires a high pump power, which is challenging because of the limited power of narrow linewidth lasers at long wavelengths. We propose twofold dispersion engineering …
Polarization-independent tunable optical filter with variable bandwidth based on silicon-on-insulator waveguides
We present a polarization-independent tunable optical filter with variable bandwidth based on silicon-on-insulator (SOI) waveguides. The polarization-independent operation is achieved through the use of a polarization splitter-rotator and a polarization …