atomic laser 中文意思是什麼
atomic laser
解釋
原子激光器-
Atomic photodissociation laser
光解原子激光器 -
Finally, the atomic coherent population trapping is studied in a multilevel laser - induced continuum structure system including cascade two - photon processes by means of quasi - classical theory. the condition leading to the atomic coherent population trapping and the dark state are given explicitly. the effects of atomic initial state and the laser intensity on the populations distributed in the atomic bound states are discussed
我們還運用準經典理論研究了含級聯雙光子過程的多束縛態激光場誘導原子連續態結構系統中原子布居數的相干俘獲，給出了產生相干俘獲的條件及暗態的表達式，討論了原子初態和激光強度對原於布居數的影響，揭示了原子相干對穩定rydberg原子的重要作用。 -
Usually the magneto - optical trap is used to obtain the cold atoms from the vapor. it is reported that experiments for obtaining the ultra - cold cesium atoms by optical molasses directly from the vapor cell without mot. the lowest temperature achieved for the cesium atomic cloud was 3k. the relationship between the temperature and the detuning of cooling laser was measured
報告了採用直接從銫蒸汽氣室而不用磁光阱實現了光學粘團的方法。用此辦法得到了3的銫的超冷原子團。這是我國目前用激光冷卻方法得到的最低溫度。 -
Atomic gas laser
原子氣體激光器 -
Recently the subject of strong laser - atom interaction system has been a hot topic in atomic physics
近年來，隨著強激光技術的發展，激光與原子相互作用的研究已經成為原子物理學中的一個熱點。 -
Instead of using an adhesive bond strain gauge, laser spots are used to achieve an atomic bond between the deformation body and measuring cell
使用激光點焊代替膠結技術應變測量儀來實現變形體和測量元件的原子連接。 -
( 5 ) the intensity and s / b of libs are investigated in detail at the different buffer gas, gas pressure, and laser power. the results show that under the 120 mj laser energy, for ar the best s / b is at 200 torr pressure, but for air at 100 torr and he at 300 torr. duration of atomic spectra in ar is longer than that in air
（ 5 ）實驗測定了不同的緩沖氣體和氣壓以及不同的入射激光脈沖能量對原子譜線強度和背景光的影響，結果顯示在氬氣環境下，當氣壓約為200torr 、激光的能量約為120mj時， libs的s b最大；在空氣和氦氣中獲得最佳s b時的氣壓約分別為100torr和300torr ；原子譜線在氮氣環境中持續的時間要比在空氣中持續的時間長。 -
In this paper, such three points are studied as : a ) the angular distributions of the hot electrons emission under laser irradiation at different incidence angles and at different polarization direction, the angular distribution of the hot electrons in the different energy range, and the effects of laser prepulse on the angular distributions of the hot electrons emission ; b ) the energy distribution of the hot electrons at different directions, from the metallic targets and the dielectric targets, in the different energy range of the hot electrons, and the effects of the atomic number z on the energy distribution of hot electron generated by the metallic targets ; and c ) the energetic proton emission resulting from the interaction of the us - ui laser pulse with plasma
本論文進行了三個方面的研究：第一，超熱電子角分佈的研究，包括不同激光入射角下超熱電子的角分佈；激光不同偏振態下超熱電子的角分佈；激光預脈沖對超熱電子角分佈的影響；不同能段的超熱電子的角分佈。第二，超熱電子能量分佈的研究，包括不同方位超熱電子的能量分佈，金屬與非金屬靶材的超熱電子的能量分佈，金屬原子序數z對超熱電子能量分佈的影響以及不同能段超熱電子的能量分佈。第三，研究了超短超強激光與固體靶相互作用所產四川大學博士學位論文生的高能質子發射和能譜。 -
The effect of atomic coherence has attracted much attention in quantum optics such as lasing without inversion, the enhancement of nonlinear process, the storage of pulse and laser cooling
原子相干效應在無反轉激光、非線性過程的增強、光脈沖存儲以及激光冷卻等量子光學的眾多領域都有潛在的應用價值。 -
In chapter 3, we studied the effect of gaussian transverse profile for the driving and laser fields on lasing without population inversion ( lwi ) in a closed v - type system and an open v - type system. moreover, we discussed also the effect of the unsaturated gain coefficient, the cavity - damping rate, the ratio of the atomic injection rates and atomic exit rate on the corresponding systems. in chapter 4, we mainly discussed the effect of doppler broadening on the gain, dispersion and the frequency up - conversion of the open v - type lwi system and compared the differences and the same between the open system and the corresponding closed system
發現： （ 1 ）在考慮doppler展寬的情況下，通過選取合適的實驗室條件（比如合適的原子環境溫度等）可得到合適doppler展寬值，從而使系統獲得最佳增益； （ 2 ）要想實現系統的頻率上轉換，同時又要獲得足夠強的無反轉激光增益，則系統頻率轉換比不能選取的太大； （ 3 ）對于開放系統，比較小的粒子注入速率比與退出速率對產生無反轉激光是有利碩士學位論文摘要的： （ 4 ）由於dopp1oy展寬的存在，當探測場與驅動場的傳播方向相反時，增益在探測場失諧的某一段區域產生振蕩，且振蕩的振幅、頻率失諧范圍的大小與dopper展寬的取值有關。 -
Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system
該系統可通過沉積參數的精確控制，以控制沉積過程，減少金剛石膜生長過程中的缺陷，並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程；利用微波對材料的選擇加熱特性，通過構造等效方程，並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中，建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型，為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備，並對基片加熱材料進行了設計和優選，以獲取大面積均勻的溫度場區，甚至獲得大於基片臺尺寸的均勻溫度區；作為研究重點之一，開展了微波等離體化學氣相沉積金剛石的成核與生長研究，系統地研究了在（ 100 ）單晶硅基片上mpcvd沉積金剛石膜的實驗過程中，基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響，分別用raman光譜、 x射線衍射（ xrd ） 、掃描電鏡（ sem ） 、紅外透射光譜（ ir ） 、原子力顯微鏡（ afm ）對薄膜進行了表徵，確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。 -
The optical limiting properties of the materials are investigated by using nanosecond laser pulses. we find that skeleton atoms and terminal ligands with larger atomic number can improve the optical limiting power of clusters with the same structure via heavy - atom effect
研究了團簇材料的光學限幅特性，發現對于相同的結構的團簇，骨架上的原子序數較大的金屬原子或終端配位體能通過重原子效應有效提高光限幅能力。 -
In the thesis, firstly, we report the setting up of our laser diode injection locking system. secondly, we analyzed the transient optical nonlinear response in four - level atomic medium induced by quantum interference effect
本文主要介紹半導體激光器注入鎖定系統的研製以及四能級原子量子相干過程中瞬態非線性光學響應的分析。 -
Today study on bec is going to reach the practical use - atomic laser
今天對bec的研究即將走向實際應用-原子激光技術。 -
The sto, ybco and sto / ybco thin films were deposited on laalo3 ( 001 ) ( lao ) substrate by pulsed laser deposition ( pld ). the effects of deposition parameters, such as the substrate temperature, the of target - substrate distance, laser energy density, on the properties of the thin fillms were systematically studied. the surface morphology of the thin films was investigated by atomic force microscopy ( afm ) and scanning electron microscopy ( sem )
採用脈沖激光沉積技術在laalo3 （ 001 ） （ lao ）基片上生長ybco 、 sto以及sto / ybco集成薄膜，系統研究了基片溫度、基片表面狀態、氧分壓、激光能量密度、脈沖重復頻率等工藝參數對薄膜表面性能、結晶情況的影響，優化了ybco 、 sto薄膜生長的工藝參數，運用afm 、 sem 、 xrd等分析手段表徵薄膜的微觀性能，分析結果表明：薄膜表面平整、結晶良好、 c軸織構。 -
When the laser frequency is larger than the atomic resonance frequency ( blue detuning ), the atoms will experience a repulsing force that will repulse the atoms to the minimum place of light field. this is the principle of atomic mirror or atomic guide and trap. in this thesis, we propose three novel mirrors to reflect atoms by using intensity gradient induced by a blue - detuned semi - gaussian laser beam, a blue - detuned semi - ellipse - gaussian laser beam and a blue - detuned semi - flattened - gaussian laser beam
本文提出了三種實現原子束反射的原子反射鏡的新方案： （ 1 ）半束蘭失諧高斯光束的原子反射鏡（ 2 ）半束蘭失諧橢圓高斯光束的原子反射鏡（ 3 ）半束蘭失諧平項高斯光束的原子反射鏡，詳細計算了上述反射鏡的衍射光場的空間分佈，並討論了運動原子在光場中所受的偶極力。 -
Therefore, by exerting controllable atomic array and quantum states, it is possible for physical realization of a quantum computer and the communication of quantum states. it is shown that a negative detuning of the laser field from the atomic resonance will lead to nonzero light pressure forces and reduce velocities along the laser beam axis
研究結果表明，當選擇負失諧時，原子將受到來自激光場的阻滯力，在它的作用下，原子沿激光束方向的運動速度大大減小，溫度降低，表現為冷卻效應。 -
( 3 ) influence of laser power density on atomic emission intensity is investigated
（ 3 ）研究了激光的輻射功率密度對libs信號強度的影響。 -
Research for the stability of laser polarizers specialty : atomic and molecular physics postgraduate : zhao yuanan advisor : yang xiangdong with the development of optical film techniques, optical film widgets have been used widely, so researches for the stability of optical film widget is become more and more important
隨著光學薄膜技術的不斷發展，光學薄膜器件的應用日益廣泛，光學薄膜的穩定性研究也被提到了極其重要的地位。為了解決大功率激光器中激光偏振膜的穩定性問題，本課題從鍍膜材料特性、膜系設計、沉積工藝等方面對這一問題展開了深入的研究。 -
Confocal laser scanning microscopy ( clsm ), atomic force microscopy [ afm ] [ and transmission verified the occurrence of the deposition
Hrp通過自發沉積技術被包埋到了微膠囊中；激光共聚焦顯微鏡、原子力顯微鏡和透射電鏡觀察證明了hrp的自發沉積。
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