Full text loading...
SEM images of photonic-crystal fibers: (a) an ultrasmall-core PCF, (b) hollow-core PCF.
Coupling nitrogen vacancies to waveguide modes of a nanodiamond-doped solid-core (a) and hollow-core (b) photonic crystal fiber.
Diagram of the experimental setup: M1, M2, mirrors; O1, O2, objectives; NF, notch filter; CGF, color-glass filter; L1, lens; S, spectrometer.
Spectra of NV center emission from a nanodiamond-doped ultrasmall-core PCF (1), the Raman background from the same fiber (2), and NV center emission from a glass substrate (3). The density of NV centers is 5 × 104 (a) and 103 (b) per 1 cm of fiber.
(a) Spectra of NV center emission from a nanodiamond-doped hollow-core PCF (1), 532-nm excitation radiation (2), and fiber transmission (3). (b) Spectra of NV center emission from nanodiamond-doped hollow-core PCF (1) and from a glass substrate (2). The density of NV centers is 104 per 1 cm of fiber.
Article metrics loading...