Efficient broadband sum and difference frequency generation with a single chirped quasi-phase-matching crystal

Efficient collinear third-harmonic generation in a single two-dimensional nonlinear photonic crystal

Efficient construction of maximally localized photonic Wannier functions: locality criterion and initial conditions

Efficient conversion of CO2 laser radiation in the nonlinear crystal HgGa2S4

Efficient excitation of a mesospheric sodium laser guide star by intermediate-duration pulses.

Efficient excitation of cavity resonances of subwavelength metallic gratings

Efficient first-order performance estimation for high-order adaptive optics systems

Efficient Fresnel x-ray optics made simple

Efficient generation and control of different order orbital angular momentum states for communication links

Efficient generation and sorting of orbital angular momentum eigenmodes of light by thermally tuned q-plates

Efficient generation of >2 W of green light by single pass frequency doubling in PPMgLN

Efficient generation of isolated attosecond pulses with high beam-quality by two-color Bessel-Gauss beams

Efficient infrared upconversion via a ladder-type atomic configuration

Efficient input and output fiber coupling to a photonic crystal waveguide

Efficient light coupling from integrated single-mode waveguides to supercollimating photonic crystals on silicon-on-insulator platforms

Efficient light coupling into a photonic crystal waveguide with flatband slow mode

Efficient low-power terahertz generation via on-chip triply-resonant nonlinear frequency mixing

Efficient Method for the Reduction of Large Piston Errors in Segmented-Mirror Telescopes

Efficient method of designing optically-pumped vertical external cavity surface emitting lasers having equally excited quantum wells

Efficient multi-mode to single-mode coupling in a photonic lantern