yag laser 中文意思是什麼

Cauterization of canine peripheral lung tissue withnd yag laser by thoracoscopy

激光經胸腔鏡熱凝肺組織的實驗研究

Argon, yag laser coagulators ar, yag

激光光凝固設備

Argon yag laser coagulators ar yag

激光光凝固設備

Er : yag laser is widely used in dentistry

Er ： yag激光在牙科上有著廣泛的運用。

With the third harmonic 355nm nd : yag laser as the exposal source, the lithography of su - 8 photoresist is studied

本文採用波長為355nm的三倍頻nd : yag激光作為曝光光源，對su - 8光刻膠進行光刻研究。

Application of holmium yag laser in brain tumor surgery

激光在顱內腫瘤手術中的應用

Treatment of ureteral calculi using ureteroscope and holmium : yag laser lithotripsy

輸尿管鏡鈥激光碎石術治療輸尿管結石

Nd yag laser therapy for early glottic carcinoma of larynx

激光治療早期聲門癌

Test method for normal pulse lasing threshold and slope efficiency of nd : yag laser rods

摻釹釔鋁石榴石激光棒長脈沖激光閾值及斜率效率的測量方法

Test method for continuous lasing threshold, slope efficiency and output power of nd : yag laser rods

摻釹釔鋁石榴石激光棒連續激光閾值斜率效率和輸出功率的測量方法

The experiment of intracavity doubling of a 946 nm nd : yag laser with an lbo crystal has been done at room temperature. a continuous wave 473 nm laser is obtained with 235mw output power at a pump power of 20w. the laser beam quality of 473 nm is good as well

對腔內倍頻輸出473nm激光進行了初步的實驗研究，在泵浦功率為20w時， l獲得了光束質量較好的連續波形式的藍光激光輸出，其功率為200mw 。

Repetitive, raman shifted, yag laser with twin - wavelength outputs

喇曼頻移激光器研究

Yag laser processing equipment for semiconductor trimming

激光加工機半導體整修用

Yag laser processing equipment for semiconductor lithorgraphy yag

雷射加工機

The nd : yag laser illumination ranged from 20 to 60 w

動物模型的選擇為豬肝及雞冠。

Growth and crack analysis of yb : yag laser crystal

激光晶體生長與開裂分析

Nd : yag laser surgical laser system yl - 100 yag laser surgical system

Yag激光治療儀由石英導光纖維輸出激光

The laser damage threshold of the ybyp _ xv _ ( 1 - x ) o _ 4determined by nd : yag laser, which showed a decreasing tendency with the increase of the dopant concentration

利用nd : yag激光器測試晶體的激光損傷閾值，隨著摻雜離子濃度的增大，激光損傷光功率密度呈減小趨勢。

According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。

In this thesis, we studied the emission spectra of laser ablation al and cu plasma. ( 1 ) the emission spectra and space - resolved - spectra of aluminum plasma were observed by pulsed q - switched yag laser

（ 1 ） a1等離子體光譜：在380 500nm范圍內觀測到激光燒蝕a1產生的等離子體發射光譜及空間分佈特徵。