upconversion 中文意思是什麼

upconversion 解釋
上變頻 上轉換 升頻轉換
  1. The excited state upconversion of pr : zblan under two - color excitation

    的雙頻激發上轉換發光的研究
  2. The linear and nonlinear optical properties of these compounds have been systematically studied. the following parts are included in this thesis : one - photon and two - photon fluorescence ; upconversion superradiance and cavity lasing properties ; the optical power limiting effect of these compounds ; and so on. tpa absorption coefficients have been got by z - scan method

    3 、系統研究了它們的線性和非線性光學性質，主要包括：單、雙光子熒光，上轉換超輻射和腔激射性能及其效率，光限幅效應，用z - scan的方法得到了其雙光子吸收截面。
  3. Determination of upconversion state lifetime and upconversion mechanisms of er3 in tellurite glasses

    鹵碲酸鹽玻璃上轉換能級壽命和發光性能研究
  4. Upconversion fluorescence of ho3 - ho3 pairs in srf2 crystal

    離子對的上轉換發光研究
  5. The cluster parameter k is presented to reduce upconversion, and the smaller the k, the lower the upconversion. another method to reduce upconversion is to dope al and p together, which can make the esa spectra shifted toward short wavelength

    總結了兩種抑制上轉換發光的方法，即:改善摻鉺光纖的團簇結構參數k ， k越小，上轉換發光效率越低; al / p共摻，使鉺離子esa吸收譜往短波方向偏移。
  6. Direct modulator converts baseband signal to rf signal without upconvertion. the system design is relatively simple compared to upconversion. so direct modulator provides adventages of compact size, low cost and low spurious response

    直接調制將基帶信號直接轉換為射頻信號，不需要二次頻率變換，與上變頻方式相比系統結構簡單，降低了對濾波器的要求，具有體積小，重量輕，成本低等明顯的優點。
  7. For the zno : er obtained in the present paper, the room temperature sharp characteristic emissions from the trivalent rare earth er3 +, including upconversion and near infrared emissiom, and the energy transfer between the nanocrystalline zno host and the dopants are observed for the first time in this paper

    首次觀測到zno : er的室溫強特徵發射、上轉換發射和近紅外發射，並同過er離子的本徵發光的激發譜觀測到基質zno與er3 +之間存在能量傳遞。
  8. L shuchen ( condensd matter physics ) directed by prof. huang shihua preparation and room temperature emission of nanocrystalline zno, colloidal zno solutions and rare earth doped nanocrystalline zno are presented in the present paper, including the near infrared and upconversion luminescence. the main contents and the important results are as following : nanocrystals zno are prepared by chemical precipitation

    呂樹臣（凝聚態物理專業）指導教師:黃世華研究員本論文主要研究納米晶zno粉體、膠體及納米晶zno : re材料的制備和室溫發射現象，包括近紅外發射和上轉換發射現象。
  9. The influence of upconversion luminescence of fluoro - oxide glass - ceramics codoped with er3 and yb3 by annealing

    共摻氟氧化物微晶玻璃樣品上轉換發光的影響
  10. For the realization of ultraviolet and violet upconversion solid - state lasers, the maximal obstacle is the search of ultraviolet and violet upconversion laser materials

    研製紫色和紫外上轉換激光器最大的障礙是紫色和紫外上轉換激光材料的制備。
  11. These results showed the relations between uv ( or violet ) upconversion luminescence and the judd - ofelt parameters, and presented a way to obtain infrared - to - violet and ultraviolet upconversion laser materials

    這能夠使我們部分擺脫「炒菜式」的材料制備方法，對紫色和紫外上轉換激光材料的設計提供理論指導。
  12. Moreover, the cross section of 481nm and 650nm upconversion emission have also been calculated. the author has measured the absorption spectrum of the npre - 1 glass and observed a strong absorption near 970 nm

    4 ）通過對npre - 1樣品吸收譜的測量，可看到在970nm附近有一很強的吸收峰，適合於採用ld激光泵浦。
  13. Up to now, short - wavelength upconversion solid - state lasers in the visible region have been obtained. ultraviolet and violet upconversion solid - state lasers are the next objective of the researchers

    目前，紅外半導體激光泵浦的可見光上轉換激光器已經實現，而紅外半導體激光泵浦的紫色和紫外上轉換激光器是上轉換激光研究者們追求的目標。
  14. Preparation and characterization of storage type infrared upconversion material

    存儲型紅外上轉換材料的制備及性能研究
  15. Under 970nm - wavelength laser diode pumped, high efficient upconversion fluorescence near 480nm has been attained. from the comparison among luminescence intensity in samples with several different concentration, we can observe concentration quenching feature in these glasses. then we analyzed the reason on concentration - quenching which could be attributed to cross - relaxation mechanism

    通過對不同摻雜濃度樣品的發光比較，發現了這種玻璃上轉換發光的濃度猝滅現象，找出了這種玻璃得到高效率上轉換發光的適宜濃度，並對tm3 +的濃度猝滅現象進行了分析。
  16. We also performed a nonlinear curve fitting to the intensity relation curve between pumped light and upconversion emission light, and knew that the upconversion luminescence belonged to three - photon absorption

    通過對上轉換發光強度與泵浦源電流強度關系曲線的擬合，看到這種上轉換是三光子吸收過程，這與通過能級圖分析得到的結果相同。
  17. 3. upconversion in the edfa is analyzed

    3 .分析了edfa中的上轉換效應。
  18. The green fluorescence is approved to be a kind of upconversion

    研究表明edfa中的綠色熒光為上轉換發光。
  19. The upconversion luminescence in tbzre glass at room temperature was studied

    2 ）對tbzre玻璃室溫下的上轉換發光進行了研究。
  20. ( 6 ) blue upconversion was only observed in bulk lu2o3 : er, assigned to the 2h9 / 2 - 4i15 / 2 transition

    6 .在體材料中，我們觀察到41onm和42onm的藍光發射，來自2h9二一4115二的躍遷。
分享友人
分享到 Line

分享到臉書