A single diffractive optical element implementing spectrum-splitting and beam-concentration functions simultaneously with high diffraction efficiency
نویسندگان
چکیده
منابع مشابه
Simultaneous multicolor image formation with a single diffractive optical element.
A design for a novel diffractive optical element (DOE) that can reconstruct three different intensity patterns when it is illuminated by three different wavelengths is presented. If the chosen wavelengths are red, green, and blue, full-color reconstruction capability is obtained. Reconstruction is achieved in the near field (Fresnel domain). Computer simulation results as well as experimental e...
متن کاملHighly Directional Emission and Beam Steering from Organic LightEmitting Diodes with a Substrate Diffractive Optical Element
In planar OLED structures, a signifi cant fraction of the internal light emission is trapped in guided modes. This trapped light is a major limitation on the external quantum effi ciency, and a number of studies have integrated photonic microstructures into OLEDs to improve the device effi ciency by extracting trapped light such as the substrate modes, [ 3 ] the waveguide modes [ 4 ] and the su...
متن کاملEnhancing photovoltaic output power by 3-band spectrum-splitting and concentration using a diffractive micro-optic.
We report the enhancement of photovoltaic output power by separating the incident spectrum into 3 bands, and concentrating these bands onto 3 different photovoltaic cells. The spectrum-splitting and concentration is achieved via a thin, planar micro-optical element that demonstrates high optical efficiency over the entire spectrum of interest. The optic (which we call a polychromat) was designe...
متن کاملNoise-robust coherent diffractive imaging with a single diffraction pattern
The resolution of single-shot coherent diffractive imaging at X-ray free-electron laser facilities is limited by the low signal-to-noise level of diffraction data at high scattering angles. The iterative reconstruction methods, which phase a continuous diffraction pattern to produce an image, must be able to extract information from these weak signals to obtain the best quality images. Here we ...
متن کاملConical diffraction and Bessel beam formation with a high optical quality biaxial crystal.
The manipulation of a Gaussian laser beam using conical diffraction in a high optical quality biaxial crystal of KGd(WO(4))(2) has been examined in detail with emphasis on the experimental techniques involved and intuitive explanations of the notable features. Two different optical arrangements were used to form the Pogendorff double-ring light pattern in the focal image plane. The formation of...
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: Chinese Physics B
سال: 2013
ISSN: 1674-1056
DOI: 10.1088/1674-1056/22/3/034201