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- Clinical application of frequency doubling perimetry in glaucomatous visual field defect 倍频视野计在青光眼视野缺损评估中的应用
- The value of frequency doubling perimetry in glaucoma screening of aged 40 or more population 倍频视野检测在40岁以上人群中筛查青光眼的价值
- frequency doubling perimetry 倍频视野计
- High power end-pumped intracavity frequency doubling Watt-level green laser[J]. 引用该论文 赵致民;李隆;田丰;李春;白晋涛.
- A brief analysis on frequency doubling at 852nm with BBO crystal has been presented. 简单介绍了BBO晶体852nm倍频的实验原理。
- The frequency doubling effects of the dually doped KTP crystals have been measured by powder frequency doubling method. 结果发现,3种双掺质KTP晶体的粉末倍频效应较之KTP均有所提高。
- Intracavity Frequency Doubling Nd:YAG Laser with Temperature Controling and High-pure KTP[J]. 引用该论文 孙渝明;侯学元;李宇飞;徐士华;刘恩泉.
- LD pumped intracavity frequency doubling 473 nmNd:YAG/LBO laser with low noise operation[J]. 引用该论文 李义民;檀慧明;付喜宏;田玉冰;王保山.
- When the deformable mirror is drived by the cosinoidal signal, the response equilibrium displacement is frequency doubling cosinoidal. 当变形镜由余弦电压驱动时,平衡位移的响应为2倍频的余弦信号;
- A blue violet laser is described by direct laser diode frequency doubling with a new nonlinear organometallic complex CMTC crystal. 报道了用新型络合物非线性光学材料硫氰酸汞镉（CMTC）晶体实现激光二极管室温下直接倍频，产生蓝紫光激光输出。
- In this paper,the mutagenic effect of HeNe laser,Nd:YAG frequency doubling pulse laser and UV on abscisic acid(ABA) producing strain was compared. 本实验对比紫外、HeNe激光、Nd:YAG倍频脉冲激光对脱落酸产生菌的诱变效果。
- Near infrared spectroscopy consists of frequency doubling and combination band of molecular vibration spectrum.It is absorbed primarily by hydric group. 近红外光谱为分子振动光谱的倍频和组合频谱带,主要是含氢基团的吸收,包含了绝大多数类型有机物组成和分子结构的丰富信息。
- According to physical signification,three metrical methods are introduced: optical communication stimulant method,extremal measure method and frequency doubling modulation method. 根据其物理意义,介绍了三种测量方法:光通信模拟法、极值测量法、倍频调制法。
- Simulation results indicate that the method can detect FHR from the Doppler ultrasonic signals and solve the problems of frequency doubling and halving. 仿真结果表明,该方法能准确地从超声多谱勒信号中提取胎心率,成功地解决了现有的胎心监护仪存在的加倍、减半的问题。
- Methods and mechanism of obtaining single-frequency in all-solid-state intracavity frequency doubling lasers by single-longitudinal-mode ways are described in this paper. 本文详细分析了用单纵模法实现全固态腔内倍频激光器单频输出的各种方法和实验装置。
- Its light source is a dual pulse and dual wavelength Cr:LiSAF laser. The outputs of secondary harmonic and triple harmonic are realized through intracavity frequency doubling and intracavity Q modulating by BBO crystal. 其光源为一台双波长双脉冲可调谐Cr:L i SAF激光器 ,采用 BBO晶体腔内倍频和腔内调 Q技术 ,实现了二次和三次谐波输出 ;
- The design of thermostat for a crystal device of frequency doubling and the basic circuits of temperature controll are described brie- fly,and the experimental results are given,too,in this paper. 描述了倍频晶体器件恒温室(室温以上)设计及相应的控温电路原理,并给出了实验结果。
- The SHG from a colliding pulse mode-locked (CPM) unstable resonator Nd : YAG laser with a antiresonant ring structure is obtained by using intracavity frequency doubling of BBO crystal. The SHG energy conversion effiency of 50. 4% is measured . 本文报道用BBO晶体作为腔内倍频元件;在带抗共振环的对撞脉冲锁模非稳腔Nd:YAG激光器中实现腔内倍频激光输出;获得倍频能量转换效率为50.;4%25
- According to physical signification, three metrical methods are introduced: optical communication stimulant method, extremal measure method and frequency doubling modulation method. 根据其物理意义，介绍了三种测量方法：光通信模拟法、极值测量法、倍频调制法。
- In the stopband of an LPF with a6 dB/ octave slope, for example, every time the frequency doubles, the amount of attenuation increases by6 dB. 例如，在低通滤波器的抑止频带，八度音程（分贝）率表示频率每翻一倍，衰减量就降6分贝。
