In order to give a low threshold current density, the curvature radius should be more about 150 μ m.

1、

At room temperature, the random lasing from ZnO with the threshold current 43 mA was obtained.

室温条件下在该结构中获得了阈值电流为43mA的ZnO随机激光输出。

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2、

The minimum threshold current could be less than 1 mA when the facet reflectivity is 0.9.

端面反射率为0.9时，最小阈值电流可以小于lmA。

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3、

Theoretical Analysis of Gain and Threshold Current Density for Long Wavelength GaAs-Based Quantum-Dot Lasers'

GaAs基长波长量子点激光器增益和阈值电流密度的理论分析（英文）

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4、

Low Threshold Current High Output Power Fundamental Transverse Mode 1.3 μ m InGaAsP/ InP BH Laser

1.3微米低阈值大功率基横模BH InGaAsP/InP激光器

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5、

Based on the model, the laser characteristics such as the threshold current, mode suppression ratio etc. have been specified.

利用该模型对光纤光栅外腔半导体激光器的阈值电流、模式抑制比等进行了研究，得到了一些新的结论，并对此结论作出了合理的解释。

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6、

Consequence of Current Spreading Effect on Threshold Current of Oxide Stripe-Geometry DH Lasers

电流扩展效应对氧化物条形激光器阈值的影响

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7、

And double oxide-confining regions offer a method of decreasing threshold current and controlling high order modes.

同时双氧化限制层为VCSEL器件提供了一种降低阈值，抑制高阶横模的方法。

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8、

Low Threshold Current Density InGaAs/ GaAs/ AlGaAs Strained Quantum Well Lasers

低阈值电流密度INGaAs/GaAs/AlGaAs应变量子阱激光器

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9、

Through numerical calculation and analysis, the effects of structure parameters on far field pattern and threshold current density are studied.

通过数值计算分析，详细研究了结构参数对远场及阈值电流密度等的影响。

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10、

Low Threshold Current InGaAs-GaAs Strained Layer Quantum Well Laser

低阈值InGaAs-GaAs应变层多量子阱激光器

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11、

GaAs/ GaAlAs Vertical Cavity Surface Emitting Lasers with Low Threshold Current

GaAs／GaAlAs低阈值垂直腔面发射激光器

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12、

Accurate measurement of threshold current for semiconductor lasers

半导体激光器阈值电流的精确测量

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13、

Stripe Semiconductor Lasers with Low& Threshold Current and Fundamental Transverse Mode

低阈值基横模条形半导体激光器

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14、

The relation of device parameter on threshold current and optimal well numbers have been discussed.

讨论了阈值电流密度、最佳阱数等与器件参数（阱数、腔长和反射率等）之间的依赖关系。

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15、

Low threshold current and high quantum efficiency ridge waveguide lasers

低阈值电流、高量子效率脊形波导激光器

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16、

Threshold current and external quantum efficiency of quantum well lasers

量子阱激光器的阈值电流和外量子效率

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17、

The lowest threshold current density of 2000A/ cm~ 2 and average normalized threshold current density of 5000A/ cm~ 2. μ m were obtained under pulsed operation at room temperature.

室温下的最低阈电流密度是2000A/cm~2.平均归一化阈电流密度是5000A/cm~2μm。

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18、

Lastly, braking performance under different initial vehicle velocities and on different adhesion coefficient roads using logic threshold control algorithm, PID control algorithm and fuzzy control algorithm are analyzed and compared.

最后，对基于门限值控制算法、PID控制算法和模糊控制算法，在不同车速下和不同附着系数路面上的汽车ABS的制动性能进行了详尽分析比较。

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19、

Most of the control methods in the application of ABS including logic threshold control and control method based on wheel slip ratio are introduced, and their advantages and disadvantages are analyzed respectively.

文章首先介绍了目前常用的ABS控制方法，包括逻辑门限值控制方法和基于滑移率的控制方法，并分析了各自的优缺点。

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20、

In this paper, take powertrain and a logic threshold control strategy of a real vehicle as an example, applying the niche genetic algorithms for off-line parameters optimization.

以一辆实例样车的动力系统和逻辑门限值控制策略为例，采用小生境遗传算法，将其做离线参数优化。

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