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The even device fabricated by the deep etched binary optics technology for the exposure system of the quasi-molecule laser 被引量:5
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作者 徐平 孙一翎 李景镇 《Science China(Technological Sciences)》 SCIE EI CAS 2002年第1期1-9,共9页
By applying the specific properties and the fabricating technology of the deep etched elements presented by us, the even device of deep etched binary optics has been designed and fabricated which can be used in quasi-... By applying the specific properties and the fabricating technology of the deep etched elements presented by us, the even device of deep etched binary optics has been designed and fabricated which can be used in quasi-molecule laser exposure system. This even device is light in weight, easy to adjust and has a high utilization rate of energy and is able to project well-distributed light beams. So it is better than the conventional one which was an array made up of quartz sticks. The properties and designed parameters were studied and simulated. The fabricated even was precisely tested by high precision Alpha-Steper. The testing result of the surface relief structures of the even has been profoundly analyzed by introducing “boundary errors”. The theory agrees well with the results of the experiment. This is the first successful application of the deep etched theory and technology of binary optics to the exposure system of microfabrication. 展开更多
关键词 deep etched binary optics element even device error analysis
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Novel Even Beam Splitters Based on Subwavelength Binary Simple Periodic Rectangular Structure 被引量:3
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作者 Haixuan Huang Shuangchen Ruan +1 位作者 Tuo Yang Ping Xu 《Nano-Micro Letters》 SCIE EI CAS 2015年第2期177-182,共6页
In this paper, a novel method of a subwavelength binary simple periodic rectangular structure is presented to realize even beam splitting by combining the rigorous couple-wave analysis with the genetic algorithm. Seve... In this paper, a novel method of a subwavelength binary simple periodic rectangular structure is presented to realize even beam splitting by combining the rigorous couple-wave analysis with the genetic algorithm. Several even splitters in the terahertz region were designed and one of the silicon-based beam splitters designed to separate one incident beam into four emergent beams has total efficiency up to 92.23 %. Zero-order diffraction efficiency was reduced to less than 0.192 % and the error of uniformity decreased to 6.51 9 10-6. These results break the limitation of even beam splitting based on the traditional scalar theory. In addition, the effects of the incident angle, wavelength, as well as the polarizing angle on the diffraction efficiency and uniformity were also investigated. 展开更多
关键词 Beam splitters binary optics Diffraction gratings Diffraction theory Subwavelength structures
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Experimental generation and observation of a super-resolution optical tube
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作者 Jianghua Xu Liping Jiang +4 位作者 Houfei Zhu Lingling Liu Jinbing Hu Haifeng Wang Songlin Zhuang 《Journal of Innovative Optical Health Sciences》 SCIE EI CAS 2016年第3期79-82,共4页
We generated a super-resolution optical tube by tightly focusing a binary phase modulated azimuthally polarized laser beam.The binary phase modulation is achieved by a glass substrate with multi-belt concentric ring g... We generated a super-resolution optical tube by tightly focusing a binary phase modulated azimuthally polarized laser beam.The binary phase modulation is achieved by a glass substrate with multi-belt concentric ring grooves.We also characterized the 3D beam pro¯le by using a crossshaped knife-edge fabricated on a silicon photo-detector.The size of the super-resolution dark spot in the tube is 0.32,which remains unchanged for4within the tube.This optical tube may¯nd applications in super-resolution microscopy,optical trapping and particle acceleration. 展开更多
关键词 Laser beam shaping PHOTODETECTORS binary optics fluorescence microscopy polarization.
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High throughput direct writing of a mesoscale binary optical element by femtosecond long focal depth beams 被引量:1
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作者 Yue Yang Erse Jia +4 位作者 Xinyu Ma Chen Xie Bowen Liu Yanfeng Li Minglie Hu 《Light(Advanced Manufacturing)》 2023年第4期130-139,共10页
Bessel beams have multiple applications owing to their propagation-invariant properties,including particle trapping,optical coherence tomography,and material processing.However,traditional Bessel-beam shaping techniqu... Bessel beams have multiple applications owing to their propagation-invariant properties,including particle trapping,optical coherence tomography,and material processing.However,traditional Bessel-beam shaping techniques require bulky components,which limits the development of miniaturized optical systems for integration with other devices.Here,we report a novel femtosecond laser direct writing strategy for fabricating mesoscale(from submicrometer to subcentimeter)binary optical elements with microscale resolution.This strategy utilizes femtosecond beams with a long focal depth to increase throughput while reducing the constraints on critical sample positioning.As a demonstration,we manufactured and characterized a 2.2 mm diameter binary axicon.The experimentally measured quasi-Bessel beam intensity distribution and the numerical results were remarkably consistent,demonstrating a suitable tradeoff between the overall size,efficiency,and structural fidelity.Furthermore,a compact Bessel lens containing binary axicons was constructed and successfully used for femtosecond laser mask-less ablation of periodic grating-type surface plasmon polariton excitation units.The demonstrated approach shows significant potential for fabricating customizable integrated optical components. 展开更多
关键词 Femtosecond laser direct writing Spatial light modulator binary optical element MESOSCALE Bessel beam
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The first symbiotic stars from the LAMOST survey
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作者 Jiao Li Joanna Mikolajewska +8 位作者 Xue-Fei Chen A-Li Luo Alberto Rebassa-Mansergas Yong-Hui Hou Yue-Fei Wang Yue Wu Ming Yang Yong Zhang Zhan-Wen Han 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2015年第8期1332-1341,共10页
Symbiotic stars are interacting binary systems with the longest orbital periods. They are typically formed by a white dwarf and a red giant that are embedded in a nebula. These objects are natural astrophysical labora... Symbiotic stars are interacting binary systems with the longest orbital periods. They are typically formed by a white dwarf and a red giant that are embedded in a nebula. These objects are natural astrophysical laboratories for studying the evolution of binaries. Current estimates of the population of symbiotic stars in the Milky Way vary from 3000 up to 400 000. However, a current census has found less than 300. The Large sky Area Multi-Object fiber Spectroscopic Telescope(LAMOST) survey can obtain hundreds of thousands of stellar spectra per year, providing a good opportunity to search for new symbiotic stars. We detect four such binaries among 4 147 802 spectra released by LAMOST, of which two are new identifications. The first is LAMOST J12280490–014825.7, considered to be an S-type halo symbiotic star. The second is LAMOST J202629.80+423652.0, a D-type symbiotic star. 展开更多
关键词 binaries: symbiotic-stars—optical spectra—LAMOST
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Mutual optical format conversion between on-of keying and binary phase-shift keying based on stimulated brillouin scattering
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作者 张严 义理林 +2 位作者 张涛 李正璇 胡卫生 《Chinese Optics Letters》 SCIE EI CAS CSCD 2013年第10期15-17,共3页
We propose and experimentally demonstrate mutual optical format conversion between signals characterized as 10-Gb/s nonreturn-to-zero on-of-keying(NRZ-OOK) and NRZ binary phase-shift keying(BPSK) types. The conversion... We propose and experimentally demonstrate mutual optical format conversion between signals characterized as 10-Gb/s nonreturn-to-zero on-of-keying(NRZ-OOK) and NRZ binary phase-shift keying(BPSK) types. The conversion is based on stimulated Brillouin scattering(SBS) in a single-mode optical fber. An OOK signal is converted into a BPSK signal through optical carrier absorption, for which a SBS loss of 30 MHz is used in long-haul transmission. The converted BPSK signal is reverted to an OOK signal with a corresponding SBS gain of 30 MHz for direct detection. The proposed OOK-to-BPSK and BPSK-to-OOK format conversions can be implemented in transmitter and receiver nodes by using a laser source as the Brillouin pump. 展开更多
关键词 BPSK OOK Mutual optical format conversion between on-of keying and binary phase-shift keying based on stimulated brillouin scattering SBS
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Shaping super-Gaussian beam through digital micro-mirror device
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作者 DING XiangYu REN YuXuan LU RongDe 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2015年第3期31-36,共6页
We have set up a novel system for shaping the Gaussian laser beams into super-Gaussian beams.The digital micro-mirror device(DMD)is able to modulate the laser light spatially through binary-amplitude modulation mechan... We have set up a novel system for shaping the Gaussian laser beams into super-Gaussian beams.The digital micro-mirror device(DMD)is able to modulate the laser light spatially through binary-amplitude modulation mechanism.With DMD,the irradiance of the laser beam can be redistributed flexibly and various beams with different intensity distribution can be produced.A super-Gaussian beam has been successfully shaped from the Gaussian beam with the use of DMD.This technique will be widely applied in lithography,quantum emulation and holographic optical tweezers which require precise control of beam profile. 展开更多
关键词 laser beam shaping spatial light modulator binary optics DMD Gamma curve correction
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Gene Disease Diagnostic System
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作者 黄国亮 张腾飞 +6 位作者 程京 周玉祥 刘诚迅 金国藩 邬敏贤 严瑛白 杨蓉 《Tsinghua Science and Technology》 SCIE EI CAS 2002年第6期665-667,共3页
Binary optics, where the optical element can be fabricated on a thin glass plate with micro-ion-etching film layer, has been widely applied in recent years. A novel optical scanning system for gene disease diagnostics... Binary optics, where the optical element can be fabricated on a thin glass plate with micro-ion-etching film layer, has been widely applied in recent years. A novel optical scanning system for gene disease diagnostics described in this paper has four kinds of optical devices, including beam splitters, an array lens, an array filter and detection arrays. A software was developed to design the binary optics system using an iterative method. Two beam splitters were designed and fabricated, which can divide a beam into a 9×9 array or into a 13×13 array. The beam splitters have good diffraction efficiencies (>70%) and an even energy distribution. The gene disease diagnostic system is a portable biochip and binary optics technology. The binary optical devices in the non-confocal scanning system can raise the fluorescence detection sensitivity of the micro-array hybrid biochip. 展开更多
关键词 binary optics GENE BIOCHIP
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