In this paper,a novel method is proposed and employed to design a single diffractive optical element(DOE) for implementing spectrum-splitting and beam-concentration(SSBC) functions simultaneously.We develop an optimiz...In this paper,a novel method is proposed and employed to design a single diffractive optical element(DOE) for implementing spectrum-splitting and beam-concentration(SSBC) functions simultaneously.We develop an optimization algorithm,through which the SSBC DOE can be optimized within an arbitrary thickness range according to the limitations of modern photolithography technology.Theoretical simulation results reveal that the designed SSBC DOE has a high optical focusing efficiency.It is expected that the designed SSBC DOE should have practical applications in high-efficiency solar cell systems.展开更多
Recently, the diffractive optics has extensively attracted interest of researchers be-cause diffractive optical elements (DOE’s) can achieve the incorporation of several opti-ca functions. Various mathematical algori...Recently, the diffractive optics has extensively attracted interest of researchers be-cause diffractive optical elements (DOE’s) can achieve the incorporation of several opti-ca functions. Various mathematical algorithms for the design of DOE’s have展开更多
Electron micrographs with a periodic structure can be cleared by utilizing optical filtering techniques. The principle of the method is first to make an optical diffraction pattern, using a transparent electron mirogr...Electron micrographs with a periodic structure can be cleared by utilizing optical filtering techniques. The principle of the method is first to make an optical diffraction pattern, using a transparent electron mirograph as the diffraction grating. This pattern of diffraction spots is then carefully examined, and all the possible forms展开更多
基金Project supported by the National Basic Research Program of China (Grant No. 2011CB301801)the National Natural Science Foundation of China (GrantNos. 91233202,10904099,11204188,61205097,and 11174211)
文摘In this paper,a novel method is proposed and employed to design a single diffractive optical element(DOE) for implementing spectrum-splitting and beam-concentration(SSBC) functions simultaneously.We develop an optimization algorithm,through which the SSBC DOE can be optimized within an arbitrary thickness range according to the limitations of modern photolithography technology.Theoretical simulation results reveal that the designed SSBC DOE has a high optical focusing efficiency.It is expected that the designed SSBC DOE should have practical applications in high-efficiency solar cell systems.
基金Project supported by the National Natural Science Foundation of China in part by the Chinese Academy of Sciences.
文摘Recently, the diffractive optics has extensively attracted interest of researchers be-cause diffractive optical elements (DOE’s) can achieve the incorporation of several opti-ca functions. Various mathematical algorithms for the design of DOE’s have
文摘Electron micrographs with a periodic structure can be cleared by utilizing optical filtering techniques. The principle of the method is first to make an optical diffraction pattern, using a transparent electron mirograph as the diffraction grating. This pattern of diffraction spots is then carefully examined, and all the possible forms
