查询词典 optically less dense medium

By utilizing the cross-gain modulation effect and the period-one oscillation harmonic frequency-locked in an optically injected semiconductor laser, we can extract the wavelength conversional individual channel optical clock from the optical-time-division-multiplexing signal. In a FP-LD, we numerically simulate the extraction of 20 GHz optical clock at 1550 nm from the 2×20 Gb/s OTDM signal at 1555 nm, and experimentally obtain the -105 dBc/Hz phase noise frequency division clock of 12.36 GHz to 6.18 GHz with simultaneous wavelength conversion from 1550.24 nm to 1545.91 nm.

采用一个FP半导体激光器作为全光分路时钟提取及波长转换器，数值模拟实现了从波长为1555 nm、速率为2×20 Gb/s的光时分复用信号中提取出波长转换为1550 nm、重复频率为20 GHz的分路光时钟，实验完成了从波长为1550.24 nm、重复频率为12.36 GHz光脉冲信号中提取出相位噪声为-105 dBc/Hz的波长为1545.91 nm、重复频率6.18 GHz的分频光时钟。

In order to observe crystal birefringence phenomenon visually,this paper designed and fabricated the visually experimental demonstrating device of crystal birefringence phenomenon by using the scattering process of impurity in non-optically natural Iceland crystal.

为了能够直观地观察到晶体中的双折射现象，利用非光学级的天然晶体冰洲石中杂质对光的散射作用，设计、制做了晶体双折射现象的直观实验演示器。

What is long-sightedness, and how can these be optically corrected?

什么是远视？如何通过光学镜片来校正？

Operator can regulate the eyepiece, body tube and object lens for examination, during which inspection angel and visual field can be optically enlarged or contracted as needed.

在观察的过程中可以光学放大、缩小来满足不同的角度和视野需要。

It is found that optically anisotropic properties of PDLC film are greatly depended on the cell thickness, rubbing strength and phase separation process.

研究了液晶盒的厚度、摩擦强度，以及在紫外光诱导相分离过程中的光照强度对PDLC膜的光学各向异性程度和电光特性的影响。

Optically anisotropic PDLC films have been induced by antiparallely rubbed surface alignment layer.

采用摩擦表面取向层的方法制备了有光学各向异性结构的PDLC膜。

At least one layer of said I-Polar is optically anisotropic and is made by means of Cascade Crystallization Process, is characterized by a globally ordered biaxial crystalline structure with an intermolecular spacing of 3.4 } 0.3 A in the direction of one of optical axes, is transparent in the visible spectral range, and is formed by rodlike supramolecules representing at least one polycyclic organic compound with a conjugated -system and ionogenic groups.

所述I-Polar中至少有一层是光学各向异性的，并通过级联结晶工艺制得，其特征是在一个光轴方向上具有3.4±0.3的分子间间距的全局有序的双轴晶体结构，该层在可见光光谱区域内是透明的，并由代表至少一种具有共轭π体系和离子型基团的多环有机化合物的棒状超分子形成。

These results are consistent with the hypothesis that, following fiber activation, a significant portion of the optically anisotropic elements rotate towards the actin filament causing the interfilament mass content to undergo redistribution.

上述结果表明肌动蛋白丝和肌球蛋白丝之间的重叠区和非重叠区中横桥的平均取向是不同的，在钙离子作用活化收缩时，会导致肌动蛋白丝和肌球蛋白丝之间的质量重新分配。

Optically anisotropic PDLC films can be acted as scattering polarizers with optimal electro-optical properties. The optical anisotropy characters of oriented PDLC films are analyzed.

对PDLC的光学各向异性进行了研究，并给出了要获得低阈值电压、高各向异性的聚合物分散液晶各向异性膜的盒厚、摩擦强度以及光照强度等条件。

We stress, however, that the material birefringence is not really important in our experiment, and that the same apparatus could be used, in principle, to optically manipulate isotropic transparent bodies also.

然而，我们强调，在我们的实验中，双折射材料并不是真正很重要的，在原理上，同样的仪器也可用于光学操纵各向同性透明介质。

Must have Coordination and negotiation skill, flexible ideas, and be punctilious person.

必须具备较好的协调与谈判能力，头脑灵活，工作认真仔细

Result: 18 patients are all with simple eye.The pigment mole lies in nasal and temple sides of the ball conjunctiva,in which 2 lie in lacrimal caruncle and semilunar plica.

结果：18例患者均为单眼，色素痣大多数位于内外侧睑裂部球结膜面，2例位于泪阜及半月皱襞，经激光治疗后，10例色素痣消失，有5例行再次激光后消失，2例行第三次激光后消失，1例第四次激光后消失。