laser cooling 中文意思是什麼

laser cooling 解釋
激光冷卻
  • laser : n 鐳射激光，受激發射光，激光；萊塞；激光器，光激射器 （ ＝ light amplification by stimulated emis...
  • cooling : n. ,adj. 冷卻（的）。
  1. They can simulate the temperature field of the 2 kw crosscurrent co2 laser, draw some relative function charts and display the laminas of cooling fans in three - dimensions

    分別模擬2kw橫流co _ 2激光器箱體溫度場的分佈情況、繪制若干相關的函數圖象和以三維圖象顯示風機葉輪的幾何形狀。
  2. In recent years, the longitudinal pulsed - discharge gas lasers with diffusive cooling have received renewed interests. a compact low power pulsed laser with high repetition rate has potential importance in laser exploration, fine mechanical processing, photochemistry and so on

    近年來，縱向放電的脈沖氣體激光器重新受到了人們的重視，一種小型的低功率的高重復頻率脈沖激光器在激光探測、精細加工和光化學等許多應用領域，有重要的應用前景。
  3. Laser cooling ; optical molasses ; super cold atoms ; mot

    激光冷卻光學粘團超冷原子磁光阱
  4. The interaction between atoms and photons has been investigated comprehensively by cavity quantum electronics - dynamic ( cavity qed ) in the last decades. with the manipulation of atoms developed by laser cooling and trapping and improvement of high finesses cavity with ultra - low losses, the interaction between atoms and photons has reached what is called strong - coupling range in optical domain

    從上世紀90年代發展起來的腔量子電動力學（ cqed ）從根本上揭示了光與原子的相互作用，光頻段腔qed對認識原子與光場的作用至關重要：隨著冷原子技術與高品質光學腔的發展，原子與光子的相互作用達到強耦合。
  5. 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。
  6. This paper gives a description of discharge tube, mirror, laser head and laser power supply of an air cooling argon laser which output is over 1w, and shows its properties

    介紹輸出功率超過1w的風冷氬離子激光器的放電管、反射鏡、激光器頭部和激光電源的設計考慮，給出了它的性能。
  7. One of the key problems is lasers cooling in researching high power semiconductor diode laser arrays

    大功率半導體激光器列陣研製的關鍵問題之一就是散熱技術。
  8. 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。
  9. Because of laser ' s transient heating and fast cooling on metal surface, laser cladding ceramic reinforced composite layer on titanium alloy surface can greatly improve wear resistance of titanium alloy

    利用高能激光束對材料表面瞬間加熱和熔池快速冷卻的特性，在鈦合金表面用激光熔覆一層陶瓷增強復合材料，能夠顯著提高鈦合金的耐磨性能。
  10. The extension of building which is planned to do in 2004 has to be advanced in this year. for the last two - time building, shiliang beer factory adopts the stainless steel ammonia - cooling fermentation tank made by lehui. the president of shiliang beer factory select the fermentation tank with laser welded dimple jacket at first sight for this time

    原計劃在2004年進行擴建的20萬噸項目不得不提前開始，由於石樑啤酒在前兩次擴建均採用樂惠高品質的不銹鋼氨冷發酵罐，這一次石樑的老總一眼就看重了樂惠公司剛剛去年從德國引進的中國第一臺激光焊機製造的具有世界先進水平的蜂窩夾套發酵罐。
  11. To achieve this temperature, the atoms must be isolated in a vacuum cell, suspended in free space by magnetic fields, and chilled by laser cooling and another technique called evaporative cooling [ see box on page 51 ]

    要達此溫度，原子必須隔離在真空腔里，利用磁場而漂浮在真空中，並以雷射冷卻法或另一種稱為蒸發冷卻的技術來降溫（參見87頁降溫大法） 。
  12. Customer optional cooling water machine for laser tube, greatly prolonging the working life of the tube and bettering engraving effect

    用戶可選的激光管專用冷水機，大大提高激光管的工作壽命和雕刻效果。
  13. The main works and results we have accomplished are as follows : 1 ) red - detuned locking of cooling / trapping laser to the cycling transition of cesium cooling has been accomplished by means of a double - passed acoustic - optical frequency shifting system and the technique of saturated absorption spectroscopy. the short - term residual frequency jitter is less than 350khz ; 2 ) automatic controlling system by computer programs has been established for laser cooling and trapping and cavity qed experiment. the laser and magnetic fields can be controlled by the acoustic - optical modulator and the electronic - controlled logic gate respectively

    具體如下： 1 ）採用了往返兩次通過的聲光頻移系統結合飽和吸收光譜技術的實驗方案，實現了冷卻俘獲激光頻率相對于銫原子冷卻循環躍遷的負失諧鎖定，短期頻率穩定度約在350khz以內，並可方便地調節其負失諧量而無須對后續光路再作調整； 2 ）建立了一套基於計算機程序控制的、銫原子激光冷卻與俘獲實驗所需的時序控制系統。
  14. We calculate the stress fracture limit, critical index limit and melting limit in a high power double clad fiber laser. the results show that the average output power decreases when the temperature is too high. to maintain the pumping efficiency and the output power, some cooling methods should be used when the output power reaches a certain level

    給出了熱效應對雙包層光纖激光器影響的裂解極限、臨界折射率極限和熔化極限與光纖結構參數和泵浦功率的表達式，理論分析和數值模擬結果表明對于高功率的雙包層光纖激光器溫度很高時激光增益下降，在一定的功率水平上需要進行外界的冷卻，以保證泵浦激光的效率和高功率的激光輸出。
  15. In order to realize a experiment of laser cooling and trapping atoms, we have set up a laser diode injection locking system and achieved a laser with single mode, narrow linewidth and 60mw power output

    為了進行原子冷卻與俘獲的實驗研究，我們用注入鎖定的方法獲得了約60mw的單模窄線寬激光輸出。
  16. Double - clad pumped yb - doped fiber laser has the advantages of compact structure, simple cooling, broad pumping wavelength, high efficiency, high power, long - life. there are many applications of fiber laser in optical communication, industry process, medical treatment, laser printing and label - making

    雙包層泵浦摻鐿光纖激光器具有結構緊湊、散熱條件簡單、泵浦范圍寬、高效率、高功率、壽命長等優點，在光通訊、工業加工、醫療、激光印刷打標等領域有著廣泛的應用。
  17. In conclusion, dynamic cooling is effective in protecting the epidermis and papillary dermis, while achieving deep tissue photocoagulation during nd : yag laser illumination

    因此，在銣雅鉻激光對深部組織造成光凝療效的同時噴射冷卻系統可有效的保護表皮。
  18. Theoretic and experimental study on large - frequency - difference side - mode injection locking of high power semiconductor lasers for laser cooling

    用於激光冷卻的半導體激光器大頻差邊模注入鎖定的理論及實驗研究
  19. Absolute distribution of laser beam intensity is gotten from comparative distribution. the absorption coefficient of material is calculated by measuring transmissive ratio. the influences on temperature increment, stress and phase of laser beam are computed with different time, window cooling, window rotating, shape and material of window, distribution of intensity

    由近場光斑相對分佈得到其絕對分佈，測量窗口透過率，求得材料的吸收系數，在此基礎上計算了出光時間長短、窗口有無冷卻、是否旋轉、窗口材料及面型、光強分佈形式對窗口溫升、應力和光束位相的影響。
  20. With the progress of laser cooling and trapping, the neutral atoms have been cooled and trapped

    而對單原子的有效操控是上述過程的基礎。
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