A real optical frequency comb spans the entire visible spectrum of light, and has very fine, evenly spaced teeth.
实际光学频率梳横跨整个可见光谱，各齿极细并均匀分布。
They suggest that any alien civilisation worth its salt would alight not on the photons of the electromagnetic spectrum-whether optical or radio-frequency-to send messages to other solar systems.
他们指出，任何有头脑的外星文明都不会发射电磁波谱中的光子——无论是可见光波段还是射频波段——向另一个太阳系传送信息。
A lot of grating messages including its profile can be derived from diffraction spectrum of grating according to Fourier optical theory.
根据傅立叶光学理论从光栅的衍射频谱中可以反推光栅本身的多种信息，包括其形貌特征。
The phosphate glasses doped with rare earth ions have been widely used in laser mediums and optical filter materials for their outstanding optical and spectrum characteristics.
稀土掺杂磷酸盐玻璃具有优异的光学和光谱特性，在激光介质材料、有色滤光材料等领域中有着重要的应用。
The technique measures the optical absorption of haemoglobin, and relies on the absorption spectrum of haemoglobin varying with its oxygenation status.
技术措施的光吸收的血红蛋白，并依赖对血红蛋白其充氧状态不同的吸收光谱。
In this thesis, we have studied spectrum absorptive optical fiber gas sensors.
本文研究的对象是光谱吸收型光纤气体传感器。
The optical emission spectrum of r. f. plasma during amorphous silicon based film etching in CF4 gas is detected.
用该系统检测了仅用CF4作为刻蚀气体刻蚀非晶硅基薄膜的等离子体光发射谱。
The property of the optical spectrum and imaging systems is analyzed based on the Wigner transformation and its property.
利用维格纳变换及其性质，分析了信号频谱及其成像光学系统的特性。
The spectrum form of square-wave controlled laser, optical signal heterodyne detecting device and principle of electrical signal demodulation are considered with emphasis.
文中着重分析了方波控制激光器的频谱形式、光信号外差探测装置和电信号解调原理。
Based on the infrared spectrum absorption characterization of methane gas, the long optical distance differential absorption method for methane detection is studied.
基于甲烷气体的红外光谱吸收特性，研究了长光程差分吸收式甲烷气体检测的方法。
A numerical algorithm is set up for the retrieval of optical turbulence spectrum from high-frequency temporal spectra of a light wave propagating through a turbulent atmosphere.
建立了一种数值算法，从光波在湍流大气中传播的闪烁时间频谱的高频特征反演大气光学湍流谱。
This paper introduces some schemes for optical CDMA systems employing coding spectrum of noncoherent broadband light.
介绍了对宽带光频谱进行编码的非相干光码分多址技术。
The reflectivity of optical mirrors can be obtained by measuring linewidth of transmission spectrum of optical cavity and the fineness of Fabry-Perot (F-P) cavity.
谐振腔精细度法是通过测量光学谐振腔透射谱线宽度来实现对光学反射镜反射率的测定。
The installation is composed of a N2 laser source, an optical spectrum analyser (OSA) , Cossegrain telescope receiving system.
该装置由N_2激光源、OSA光学光谱分析仪、卡斯格伦望远镜接收系统三部分组成。
The component shows good light-filtering characteristic in wider free spectrum area, has a wide tunable scope which surpasses many optical filters of other types, and it also presents good fineness.
器件在较宽的自由光谱区内有良好的滤光特性，可调谐范围广，优于绝大部分其他类型的光滤波器，并且具有较高的精细度特性。
The author takes light source of the rectangle optical spectrum as an example to calculate time relevant degree and briefly describes Fourier's spectroscopy principle.
以矩形谱线的光源为例，计算了时间相干度，简要介绍了傅里叶变换光谱学原理。
An object's spectrum decide this object optical properties, including its color.
一个物体的光谱决定这个物体的光学特性，包括它的颜色。
This paper presents a new system for optical spectrum record, using the automatic scanning silicon photodiode array detector. The data acquisition are fulfilled in real-time.
本文介绍了采用自扫描硅光电二极管阵为探测器的光谱记录系统，以及实时数据采集系统。
The second, we summarize the optical heterodyning modulation technology, and calculate the spectrum of optical mm-wave signal generated by this modulation technology.
②总结了光外差调制技术，理论推导了利用光外差调制技术产生的光载毫米波信号的频谱结构。
Then, the effective distance expression of angular spectrum along optical axis has been introduced by comparing this equation with the free propagation equation.
接下来，将此传输方程与光在自由空间的传输方程相比较，引入了角谱轴向传输的等效距离公式。
In experiment, we research the optical spectrum and analyze the influence of driven current noise on optical spectrum linewidth of tunable DBR laser.
实验研究了可调dBR激光器的光谱特性，并分析了驱动电流噪音对可调d BR激光器线宽的影响。
Based on the characteristic of spectrum absorption of acetylene, an optical fiber detection system for methane gas is presented, which has reference channel and is for on line and real time detection.
基于乙炔气体的光谱吸收特性，采用一种带有参考通道的光纤乙炔气体在线实时检测系统。
Each optical signal propagating in the WDM optical communications system occupies its own wavelength within the gain spectrum of the optical amplifier.
每一个在WD M光通信系统中传播的光信号在光放大器的增益光谱内都占有其各自的波长。
The frequency pseudocolor-coded speech spectrogram is then obtained by means of a sampling narrow slit placed at Fourier plane in white-light optical spectrum analyzer.
然后在白光光学频谱分析系统中，利用放置在傅里叶频谱面上的取样狭缝得到按频率假彩色编码的频谱图。
The spectrometer based on linear optical detector has the advantage of multi-spectrum channel detection and it plays an important role in mass-spectrometry.
基于线列光探测器件的光谱仪具有多光谱通道探测的优点，以及其在物质光谱分析中担当的重要角色。
A flame spectrum monitoring system based on an optical fiber spectrometer was used to measure the radiation of combustion in boiler.
基于光纤光谱仪的光谱分析火焰监测系统可实时监测锅炉火焰各特征区的辐射光谱。
Due to the role of stimulated Raman scattering, Raman gain spectrum is superposed over the conventional MI gain spectrum in optical fibers.
由于受激喇曼散射的作用，使得喇曼增益谱叠加到光纤中的调制不稳定性增益谱上。
The failure of the powder metallurgy valve seat was analyzed by optical microscopy, scanning electronic microscopy, X-ray energy spectrum and X-ray diffraction.
采用力学、物理性能测试，金相、扫描电镜、能谱和X衍射分析研究了气门座圈产品失效的主要原因。
Several methods of optical fiber gas sensor with absorption spectrum have been introduced.
介绍了几种光谱吸收光纤气体传感的方法。
Several methods of optical fiber gas sensor with absorption spectrum have been introduced.
介绍了几种光谱吸收光纤气体传感的方法。
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