n.

a musical notation indicating one half step higher than the note named

a long thin sewing needle with a sharp point

Tunable All-Optical Delays via Brillouin Slow Light in an Optical Fiber
Wide bandwidth slow light using a Raman fiber amplifier
Optical-Fiber Source of Polarization-Entangled Photons in the 1550 nm Telecom Band
All-optical, wavelength and bandwidth preserving, pulse delay based on parametric wavelength conversion and dispersion
Optical-fiber source of polarization-entangled photon pairs in the 1550nm telecom band
All-fiber photon-pair source for quantum communications
Generation of correlated photons in nanoscale silicon waveguides
Four-wave mixing in microstructure fiber
Resonant optical interactions with molecules confined in photonic band-gap fibers.
Numerical study of all-optical slow-light delays via stimulated Brillouin scattering in an optical fiber