背散射光 的英文怎麼說

中文拼音 [bēisǎnshèguāng]
背散射光 英文
backscattered light
  • 背 : 背動詞1. （用脊背馱） carry on the back 2. （擔負） bear; shoulder
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 光 : Ⅰ名詞1 （照耀在物體上、使人能看見物體的一種物質） light; ray 2 （景物） scenery 3 （光彩; 榮譽） ...
  • 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
  1. The efficient sppc had been performed with 1 - hz - repetition - rate 532nm nanosecond pulses, in which phase conjugate reflectivity as high as 21. 5 % was obtained. when sppc were operated in ce : batio3 with 532nm, 632. 8nm and 790nm cw lasers, the maximum sppc reflectivity of 54. 1 %, 88. 2 % and 80. 5 % were obtained, respectively. unlike the results reported before that four - wave mixing by stimulated photorefractive backscattering ( spb - fwm ) only exists at short wavelengths while four - wave mixing by total internal reflection ( tir - fwm ) only exists at long wavelengths, both of these two mechanisms coexist at all wavelengths from 532nm to 790nm in our experiments

    通過大量的實驗全面研究了ce ： batio _ 3自泵浦位相共軛特性：在低重復頻率（ 1hz ） 、 532nm調q激光泵浦時最高獲得了21 . 5的位相共軛反射率，而此前報道過的建立位相共軛脈沖光最低重復頻率是10hz ；實驗中發現在532nm 790nm波長范圍內，在不同的波長激光泵浦時，同時存在兩種自泵浦位相共軛機制：全內反射?四波混頻（ tir - fwm ）和受激背向散射?四波混頻（ spb - fwm ） ；在連續激光泵浦時，對532nm 、 632 . 8nm和790nm三種波長，最高分別獲得了54 . 1 、 88 . 2和80 . 5的位相共軛反射率；同時還研究了自泵浦位相共軛光的時間穩定性。
  2. A method for estimating the intensity of underwater laser backscattering based on the concept of equal phase volume

    基於等相位體概念的水下激光背向散射強度的估算方法
  3. The judge, whose eyes had gone in the general direction, recalled them, leaned back in his seat, and looked steadily at the man whose life was in his hand, as mr. attorney - general rose to spin the rope, grind the axe, and hammer the nails into the scaffold

    法官收回了適才散射的目光，向椅背上一靠，目不轉睛地望著那青年-那人的性命就摸在他手心裏。此時，檢察長先生站起身來，絞起了絞索，磨起了斧頭，把釘子釘進了斷頭墩。
  4. Study of raman scattering of plastic optical fiber

    光纖中放大的背向自發拉曼散射的增益特性
  5. Thirdly, some key technologies of optical layer protection such as fault monitoring, location, switching corporation, protection switching time were studied in chapter 3, a method of optical power monitoring for primary path and otdr monitoring for protection path was provided

    隨后研究了光層保護的網路故障監測、倒換判椐、故障定位、倒換協調、保護倒換時間等問題，提出了主通道光功率監測、備用通道背向散射曲線監測的故障監測方法。
  6. Chapter 7. the theoretical model of rayleigh optical frequency domain reflectometry is presented, and the fully distributed microbending loss optical fiber sensor on base of this model is studied

    第七章，研究了rayleigh光頻域背向散射理論模型，和基於該模型的全分散式光纖微彎損耗傳感器系統。
  7. Chapter 8. the fully distributed optical fiber sensor system on base of raman and rayleigh optical frequency - domain reflectometry to measure microbend and temperature simultaneously is developed

    第八章，研究了基於rayleigh光頻域背向散射和raman光頻域背向散射理論同時測量微彎和溫度分佈的全分散式光纖傳感器系統。
  8. This dissertation presents the author ' s main contributions in the studies of the sea optical scatter channel by use of monte carlo simulation on the background of airborne oceanic submarine laser communication system. physical and optical properties of physical constituents in sea optical scatter channel are studied and summarized

    本文以機載海洋激光對潛通信系統為背景，分析和概括了海水光散射通道中的各物理成份的物理和光學性質，討論了海水的固有和視在光學性質。
  9. There may be unreal peaks on backscattering signal curve in themeasurement of optical fiber links by otdr

    用otdr測試光纖線路時，其背向瑞利散射信號曲線上常出現幻峰。
  10. This technique combines the edge - based finite - element method with physical optics ( po ) and physical theory of diffraction ( ptd ). the hybrid technique is applied to compute the scattering fields from the electrically large bodies with cracks and cavities on their surfaces. it is also used to analyze the scattering characteristics of microstrip antennas residing in a cavity mounted on metal objects with finite sizes

    本文採用edge - basedfem為基本方法，結合物理光學法（ po ） 、物理繞射理論（ ptd ） 、邊界積分方程（ bi ） 、區域分解技術（ ddm ）和完全匹配層（ pml ）吸收邊界條件等求解方法構成的混合方法，對電磁散射和輻射問題進行了研究，主要包括以下內容：提出了一種edge - basedfem與物理光學方法和物理繞射理論相結合的混合方法? fem po - ptd方法，並將該混合方法應用於帶有腔體或槽縫的電大尺寸導體目標的電磁散射特性分析和位於有限導體目標上的背腔式微帶貼片天線的電磁散射特性分析。
  11. A medium that scatters light, used in photography to soften shadows

    漫散屏，柔光屏散射光線的介質，用在攝影中使背景柔和
  12. Then the noise is removed by means of the variance that is estimated directly from the median of the noise. finally, an auto - detection is made for the motion displacement from the difference image undergone the above pre - processings

    本文給出的方法以散射圖去除光照影響和靜止背景，用噪聲的中位數直接估計其方差，從而去除噪聲，檢測出由運動引起的變動，最後自動檢測運動距離。
  13. The self - q - switched pulses of high erbium - doped fabry - perot cavity fiber laser are observed and theoretically analyzed. ( 2 ). utilizing the non - linearity characteristics of single mode fiber - back stimulated brillouin scattering ( bsbs ) and the wavelength - selecting characteristics of fiber gratings, self - q - switched pulses are achieved from a linear cavity erbium - doped fiber laser pumping by a 980nm ld continue wave ( cw ) pumping, the pulse width is 2. 2ns and the repetition frequency of pulses is 64. 5mhz

    （ 2 ）利用單模光纖的非線性效應背向受激布里淵散射（ bsbs ）和光纖光柵的選頻特性，採用980nm半導體激光器連續泵浦方式，在線性腔摻鉺光纖激光器中實現了自調q運轉，獲得脈沖寬度（ fwhm ）約為2 . 2ns ，重復頻率為64 . 5mhz的穩定的光脈沖輸出。
  14. Secondly, typical approaches of studying on vegetation have included radiative transfer, four - stream, geometric optics, hybrids of two or more of these, and numerical simulation. then we introduced several models for density or sparse vegetation, soil and desert

    然後，簡單論述了建立植被散射模型的發展動態和幾種典型方法：輻射傳輸模型、四通量模型、幾何光學模型以及復合模型等，初步研究了用於稠密植被、稀疏植被、土壤、沙漠等環境背景的雙向反射函數模型。
  15. The thomson scattering process ended, and the photons ceased interacting with matter so intensively, becoming the microwave background

    此時湯姆森散射程序結束，光子與物質的交互作用不再那麼強烈，因而形成微波背景。
  16. According to big bang theory, the early universe is a hot, dense and opaque fluid of electrons and protons. this hot plasma constantly emits, scatters and reabsorbs photons and is the source of the cosmic background radiation

    根據大爆炸理論，早期的宇宙主要由電子和質子組成，是一團高密度極端熾熱不透光的等離子體，它不斷放射散射和吸收光子，是宇宙背景輻射的源頭。
  17. Gain character of amplified backward spontaneous raman scattering in the dcf fiber

    652光纖中背向自發拉曼散射的增益特性
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