Low-threshold lasing from colloidal quantum dots under quasi-continuous-wave excitation
Chemicals Cadmium oxide (CdO, 99.5%, trace metals basis), zinc acetate 99.99%, trace metals basis), oleylamine (70%, technical grade),…
Quasi-bound flat bands in the continuum
The theoretical framework for the quasi-bound flat bands in the continuum We start with a one-dimensional (1D) silicon…
Observation of space-time surface plasmon polaritons
Theoretical formulation The conceptual formulation of ST-SPPs is best understood by visualizing their spectral representation on the surface…
Ultra high-Q tunable microring resonators enabled by slow light
Slow light-induced linewidth narrowing The maximum achievable Q-factor (Q = ωc/κ) of resonators is primarily constrained by intrinsic loss mechanisms…
Widely tunable and narrow-linewidth violet lasers enabled by UV-transparent materials
Ludlow, A. D., Boyd, M. M., Ye, J., Peik, E. & Schmidt, P. O. Optical atomic clocks. Rev.…
Observation of hyperbolic intersubband polaritons in native-dielectric-doped van der Waals semiconductor quantum wells
Intersubband transition and native-dielectric-doping The intersubband transition energies in the WSe2 QWs can be approximated with an infinite…
Brownian spin-locking effect | Nature Materials
Anderson, P. W. Absence of diffusion in certain random lattices. Phys. Rev. 109, 1492 (1958). Article CAS Google…
Ultra-broadband wide-angle anti-reflection scheme utilizing multi-layer resonant metasurfaces
When light transitions from one medium to another, differences in refractive indices cause partial reflection which reduces the…
Room-temperature spin-layer locking of exciton–polariton nonlinearities in a WS2 microcavity
Žutić, I., Fabian, J. & Sarma, S. D. Spintronics: fundamentals and applications. Rev. Mod. Phys. 76, 323 (2004).…
An optical meta-image-processor for enhanced imaging through strongly scattering media
Principle In an ideal imaging system, the PSF appears as a distinct Airy pattern, as shown in Fig. 1a.…