Photonic crystal nanofiber using an external grating
نویسندگان
چکیده
منابع مشابه
Photonic crystal nanofiber using an external grating.
We implemented a photonic crystal nanofiber device by reversibly combining an optical nanofiber and a nanofabricated grating. Using the finite-difference time-domain method, we designed the system for minimal optical loss while tailoring the resonant wavelength and bandwidth of the device. Experimentally, we demonstrated that the combined system shows a strong photonic stop band in good agreeme...
متن کاملEnhancement in external quantum efficiency of blue light-emitting diode by photonic crystal surface grating
Blue photonic crystal light-emitting diodes were evaluated with photonic crystal hole patterns. The diameter of the holes, lattice constant, and emission wavelength were selected to be 110, 220 and 450 nm, respectively, to attain a maximum enhancement in the wallplug efficiency. The improvement in external quantum efficiency was 30–50%. Changes in voltage characteristics caused by the etched ho...
متن کاملCoupled external cavity photonic crystal enhanced fluorescence.
We report a fundamentally new approach to enhance fluorescence in which surface adsorbed fluorophore-tagged biomolecules are excited on a photonic crystal surface that functions as a narrow bandwidth and tunable mirror of an external cavity laser. This scheme leads to ∼10× increase in the electromagnetic enhancement factor compared to ordinary photonic crystal enhanced fluorescence. In our expe...
متن کاملTemperature insensitive long period grating sensors in photonic crystal fibre
A Long Period Grating was fabricated in endlessly single mode photonic crystal fibre using a spatially-periodic electric arc discharge. The sensing characteristics of the grating were studied and it was found to possess an insensitivity to temperature, a bend sensitivity of 3.7 nm.m and a strain sensitivity of -2.0 pm/με. Introduction: Long period gratings (LPGs) consist of a large scale (hundr...
متن کاملRotationally Variant Grating Writing in Photonic Crystal Fibres
The role of rotational alignment during grating writing is comprehensively examined by the measurement of core luminescence from a Ge-doped 12 ring photonic crystal fibre, computer simulation of transmission and, definitively, by inscription of gratings at three angles– 0°, 30° and the optimum luminescent angle for this fibre, 21.5°. All experimental results were in accordance with each other a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Letters
سال: 2013
ISSN: 0146-9592,1539-4794
DOI: 10.1364/ol.38.002542