本文選題：金剛石　切入點(diǎn)：氮空位　出處：《中國(guó)科學(xué)技術(shù)大學(xué)》2017年博士論文　論文類型：學(xué)位論文

【摘要】：近年來(lái),隨著人們對(duì)人工合成單晶塊狀金剛石技術(shù)的掌握,對(duì)于金剛石光學(xué)工程,主要包括對(duì)基于金剛石的納米技術(shù)的研究,也越來(lái)越多。而且其中基于金剛石中NV色心的研究,在量子信息技術(shù)領(lǐng)域和量子精密測(cè)量領(lǐng)域被學(xué)術(shù)界廣泛重視。因?yàn)樵谑覝貤l件下就具有穩(wěn)定的光子發(fā)射和長(zhǎng)的消相干時(shí)間等特性,NV色心已經(jīng)被應(yīng)用并作為目前實(shí)現(xiàn)量子計(jì)算機(jī)與量子信息技術(shù)的重要候選者。NV色心的電子自旋狀態(tài)可以為量子計(jì)算提供有希望的固體量子位之一。此外,NV色心可以作為電磁場(chǎng),溫度和壓力的納米傳感器,因?yàn)槠渲须娮幼孕牧孔討B(tài)對(duì)于外部環(huán)境非常敏感。這在生物學(xué)等方面已得到很好的應(yīng)用。本文從實(shí)際工作出發(fā),主要取得以下四個(gè)方面成果:1.以半導(dǎo)體工藝、有限元仿真為主要手段,研究基于塊狀金剛石NV色心的單光子源器件的制備,成功加工出了幾種微納器件,包括:納米線、固體浸沒(méi)透鏡、圓形靶心環(huán)光柵、微盤(pán)和自支撐薄膜。還分別在塊狀金剛石和納米線上實(shí)現(xiàn)了人工制備單個(gè)NV色心。從而獲得了基于塊狀金剛石材料微納加工方面的工作及經(jīng)驗(yàn)。2.對(duì)金剛石納米線NV色心單光子源進(jìn)行了實(shí)驗(yàn)分析,證明了這種錐形納米線,相比塊狀金剛石,能以7倍增幅提高共聚焦實(shí)驗(yàn)系統(tǒng)對(duì)NV色心的單光子收集效率,而且單光子計(jì)數(shù)率可以到564kcps�？梢詰�(yīng)用這種具有高光子通量的納米線單光子器件來(lái)提高量子信息處理的性能。更重要的是,還可以為納米級(jí)傳感與測(cè)量提供有效的解決方案。3.通過(guò)基于塊狀金剛石中的NV色心探測(cè)局域光場(chǎng)的光學(xué)遠(yuǎn)場(chǎng)顯微鏡技術(shù),實(shí)現(xiàn)了對(duì)金剛石表面微納結(jié)構(gòu)的超分辨率成像。該技術(shù)將塊狀金剛石中人工制備的密集NV色心陣列作為近場(chǎng)光學(xué)探針。其局域光場(chǎng)通過(guò)金剛石表面上的納米結(jié)構(gòu)傳輸,并利用NV色心的電荷狀態(tài)轉(zhuǎn)換來(lái)測(cè)量。而電荷狀態(tài)損耗型納米顯微技術(shù)可以實(shí)現(xiàn)6.1 nm的空間分辨率的氮空色心位置測(cè)量,所以,金剛石表面上的納米結(jié)構(gòu)也被以低于光學(xué)衍射極限的分辨率被成像。該結(jié)果提供了一種構(gòu)建通用光學(xué)超分辨率顯微鏡技術(shù)的方法和用于具有NV色心高空間分辨率傳感的便利平臺(tái)。4.通過(guò)對(duì)微波器件的仿真,優(yōu)化,處理和封裝研究,為基于NV色心的量子傳感的光學(xué)遠(yuǎn)場(chǎng)超分辨率顯微鏡技術(shù)提供了集成高品質(zhì)因子微波天線的納米傳感器。此外,本文還說(shuō)明了計(jì)算機(jī)視覺(jué)等人工智能技術(shù)在實(shí)驗(yàn)檢測(cè)和樣品制備中的應(yīng)用,并開(kāi)源相關(guān)程序?yàn)槠渌愃蒲芯抗ぷ魈峁┝藚⒖己图夹g(shù)積累。上述四個(gè)方面成果,都是緊密圍繞NV色心納米傳感這個(gè)目標(biāo)進(jìn)行的多方面多角度的研究。本文中無(wú)論是對(duì)納米尺寸的傳感器的研究,還是研究對(duì)目標(biāo)進(jìn)行納米顯微成像,都取得了階段性成果。展望未來(lái)的工作,可以深入研究NV色心量子傳感結(jié)合光學(xué)超分辨成像的技術(shù),以及該技術(shù)在生物學(xué)和材料學(xué)上的應(yīng)用,從而進(jìn)行交叉學(xué)科研究。
[Abstract]:In recent years, with the mastery of synthetic monocrystalline monocrystalline diamond technology, the optical engineering of diamond mainly includes the research of diamond based nanotechnology. And it is based on the research of NV color center in diamond. In the field of quantum information technology and quantum precision measurement, NV color centers have been widely used in the field of quantum information technology and quantum precision measurement, because they have the characteristics of stable photon emission and long decoherence time at room temperature. The electron spin state of the NV color center can provide one of the promising solid qubits for quantum computing. In addition, the NV color center can be used as an electromagnetic field. Nanosensor for temperature and pressure, because the quantum states of electron spin are very sensitive to the external environment. This has been applied well in biology and so on. The main achievements are as follows: 1.Using semiconductor technology and finite element simulation as the main means, the fabrication of single photon source devices based on the NV color center of bulk diamond is studied. Several kinds of micro and nano devices are successfully fabricated, including nanowires, nanowires, nanowires, nanowires, nanowires, nanowires, nanowires, and nanowires. Solid immersion lens, circular target ring grating, A single NV color center was also fabricated on bulk diamond and nanowires, respectively. Thus, the work and experience of nanocrystalline diamond fabrication based on bulk diamond materials were obtained. 2. NV color center single photon source is experimentally analyzed. It is proved that the cone-shaped nanowires can increase the single-photon collection efficiency of NV color center by 7 times compared with the bulk diamond. And the single-photon counting rate can be up to 564kcps. this kind of nanowire single-photon device with high photon flux can be used to improve the performance of quantum information processing. It can also provide an effective solution for nanoscale sensing and measurement. Optical far-field microscope technology based on NV color center in bulk diamond to detect local optical field is presented. Super-resolution imaging of diamond surface microstructures is realized. The dense NV color center array in bulk diamond is used as a near-field optical probe. The local light field is transmitted through the nano-structure on the diamond surface. And the charge state conversion of NV color center can be used to measure the position of the center of nitrogen with a spatial resolution of 6.1 nm, and the charge state loss nanotechnology can be used to measure the position of the center. The nanostructures on diamond surfaces are also imaged at resolutions below the optical diffraction limit. The results provide a method for constructing general optical superresolution microscopy and are used for high spatial resolution of NV color centers. The convenient platform for sensing. 4. through the simulation of microwave devices, Optimization, processing and encapsulation research provide nanosensor integrated with high quality factor microwave antenna for optical far-field super-resolution microscope technology based on NV color center quantum sensor. This paper also explains the application of artificial intelligence technology such as computer vision in experimental detection and sample preparation, and the open source programs provide reference and technical accumulation for other similar research work. It is a multi-angle research on NV color center nanosensor. In this paper, whether it is the research of nanometer-sized sensor or the study of nano-micro imaging of the target, Looking forward to the future work, we can further study the NV color center quantum sensor combined with optical super-resolution imaging technology, and its application in biology and materials, so as to carry out cross-disciplinary research.
【學(xué)位授予單位】：中國(guó)科學(xué)技術(shù)大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2017
【分類號(hào)】：TB383.1;TP212

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相關(guān)博士學(xué)位論文 前5條

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本文編號(hào)：1639640