【摘要】：原子鑒頻器是一種基于原子躍遷的新型光學鑒頻器件,具有透射帶寬窄、透射譜型穩(wěn)定的特點,因此在光電探測等領域具有獨特優(yōu)勢�；谠予b頻的高光譜分辨率太陽觀測,可以實現(xiàn)太陽光球?qū)雍蜕驅(qū)拥乃俣葓�、磁場觀測；能夠為太陽物理研究和應用提供高分辨率觀測數(shù)據(jù)；成為監(jiān)視太陽劇烈活動,進行空間天氣預報的有效觀測手段。本文調(diào)研了高光譜分辨率太陽觀測的意義及發(fā)展趨勢后,以原子鑒頻技術(shù)及其在高光譜分辨率太陽觀測中的應用為中心開展研究。 對基于原子躍遷的光學器件的理論和技術(shù)開展了較為系統(tǒng)的研究,開發(fā)了原子鑒頻器模擬軟件,用于指導原子鑒頻器的研制。分析了原子鑒頻器應用于光電探測系統(tǒng)時出現(xiàn)的有效透射率問題及解決方法。在此基礎上,發(fā)展出多種新型的原子光學器件。其中,普通型和緊湊型雙通道原子濾光器的成功研制,有效地提高了傳統(tǒng)原子濾光器的透射率,而雙峰原子鑒頻器和塞曼吸收原子鑒頻器的成功研制,則是實現(xiàn)了傳統(tǒng)原子器件的技術(shù)和功能擴展,滿足了高光譜分辨太陽觀測的需求。研制了四峰透射原子鑒頻器,并提出基于四峰透射原子鑒頻器的太陽層析觀測,具有創(chuàng)新意義。 為了開展高光譜分辨率太陽觀測,設計并研制了兩種基于原子鑒頻的太陽觀測實驗系統(tǒng),包括法拉第原子鑒頻器和塞曼吸收鑒頻器級聯(lián)實現(xiàn)高分辨的實驗系統(tǒng)以及法拉第原子鑒頻器和標準具級聯(lián)實現(xiàn)高分辨的實驗系統(tǒng)。采用法布里珀羅標準具光學選峰的實驗系統(tǒng),不僅穩(wěn)定性高,光譜分辨能力強,而且還具有調(diào)諧方便的優(yōu)點。 利用上述實驗系統(tǒng)開展高光譜分辨率太陽觀測,成功地獲得了太陽全日面的多普勒速度觀測結(jié)果。對觀測結(jié)果進行圖像處理,扣除太陽較差自轉(zhuǎn)以及引力紅移等因素的影響,獲得了太陽速度場的初步結(jié)果。這是在國內(nèi)首次獲得基于原子鑒頻的太陽觀測結(jié)果,為我國太陽觀測研究提供新型觀測手段和科學數(shù)據(jù)。最后進行了誤差分析,并結(jié)合激光雷達觀測結(jié)果,分析了地球大氣對高光譜分辨率太陽觀測的影響。
[Abstract]:Atomic frequency discriminator is a new type of optical discriminator based on atomic transition. It has the characteristics of narrow transmission band and stable transmission spectrum, so it has unique advantages in the field of photoelectric detection and so on. The hyperspectral resolution solar observations based on atomic frequency discrimination can realize the velocity field and magnetic field observation of the solar photosphere and chromosphere, provide high-resolution observation data for the research and application of the solar physics, and become the monitoring of the intense activities of the sun. An effective means of observation for space weather forecasting. After investigating the significance and development trend of hyperspectral resolution solar observation, this paper focuses on atomic frequency discrimination technology and its application in hyperspectral resolution solar observation. The theory and technology of optical devices based on atomic transition are studied systematically. The simulation software of atomic frequency discriminator is developed to guide the development of atomic frequency discriminator. The problem of effective transmittance of atomic frequency discriminator used in photoelectric detection system and its solution are analyzed. On this basis, a variety of new atomic optical devices have been developed. Among them, the successful development of conventional and compact dual-channel atomic filters has effectively improved the transmittance of traditional atomic filters, while the bimodal atomic discriminator and Zeeman absorption atomic discriminator have been successfully developed. It realizes the technical and functional expansion of traditional atomic devices and meets the needs of hyperspectral resolution solar observation. A four-peak transmission atomic frequency discriminator is developed, and the solar tomography observation based on the four-peak transmission atomic discriminator is presented, which is of great significance. In order to carry out hyperspectral resolution solar observation, two solar observation experimental systems based on atomic frequency discrimination are designed and developed. The experiment system consists of Faraday atomic discriminator and Zeeman absorption discriminator cascade to realize high resolution and Faraday atomic discriminator and standard device cascade to realize high resolution experimental system. The experimental system with Fabry-Perot standard for optical peak selection not only has high stability, strong spectral resolution, but also has the advantage of convenient tuning. Using the above experimental system to carry out the hyperspectral resolution solar observations, the Doppler velocity observation results of the solar total solar surface have been obtained successfully. The preliminary results of the solar velocity field are obtained by image processing and deducting the influence of some factors such as the differential rotation of the sun and the gravitational redshift. This is the first time to obtain the results of solar observation based on atomic frequency discrimination in China, which provides a new method of observation and scientific data for the study of solar observation in China. Finally, the error analysis is carried out, and the influence of the earth's atmosphere on the hyperspectral resolution solar observation is analyzed by combining the observation results of lidar.
【學位授予單位】：中國科學院研究生院（武漢物理與數(shù)學研究所）
【學位級別】：博士
【學位授予年份】：2013
【分類號】：TH753.1;P182

【參考文獻】

相關(guān)期刊論文 前8條

1 龔順生,曾錫之,薛新建,鄭文鋼,胡志林,賈漢春,張海枝,劉誼平;中國武漢上空鈉層的首次激光雷達觀測[J];中國科學(A輯 數(shù)學 物理學 天文學 技術(shù)科學);1997年04期

2 龔順生;程學武;李發(fā)泉;楊國韜;楊勇;王嘉珉;;原子濾光及鑒頻技術(shù)在光電探測中的應用[J];激光與光電子學進展;2010年04期

3 程學武;楊國韜;楊勇;李發(fā)泉;王繼紅;劉迎杰;李勇杰;林鑫;龔順生;;高空鈉層、鉀層同時探測的激光雷達[J];中國激光;2011年02期

4 甘為群;黃宇;顏毅華;;太陽空間探測的過去與未來[J];中國科學:物理學 力學 天文學;2012年12期

5 劉忠;鄧元勇;季海生;黎輝;;中國地基大太陽望遠鏡[J];中國科學:物理學 力學 天文學;2012年12期

6 艾國祥;雙折射濾光器及其在天文學中的應用[J];天文學進展;1987年04期

7 艾國祥;太陽物理光學儀器的新進展[J];天文學進展;1994年03期

8 艾國祥;胡岳風;;太陽磁場望遠鏡的工作原理[J];天文學報;1986年02期

，

本文編號：2177355