光吸收是光(电磁辐射)通过材料时,与材料发生相互作用,电磁辐射能量被部分地转化为其他能量形式的物理过程。 当被吸收的光能量以热能的形式被释放,即形成了光热转化;当未被吸收的光能量被物体反射、散射或透射,便影响着我们看到的物体的色彩。
...8种功能频道可选,最大程度的满足不同的检测要求: 光吸收(Absorbance) 荧光顶部阅读和荧光底部阅读模式(Fluorescence intensity top and bottom reading) 荧光共振能量传递(FRET) 时间分辨荧光(...
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... atomic absorption spectrophotometer原子吸收分光光度计 light absorption光吸收 heat absorption[化]吸热;热吸收 ...
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X光吸收光谱 X-ray absorption spectroscopy
环境光吸收 Ambient Occlusion
紫外光吸收剂 UV absorber ; NA ; ultraviolet absorber
极光吸收 auroral absorption
激光吸收光谱 TDLAS ; IRLAS ; tunable diode Laser Absorption Spectroscopy
光吸收线 light absorption line
激光光吸收体 Laser Absorbers ; Safty Equipment ; safty equipment laser absorbers
光吸收比 luminous absorptance
The ZnSe samples showed steep optical absorption at wavelength of around 468.8nm.
所制备的ZnSe粉体对紫外区的光呈现明显吸收,其光吸收最强峰位在波长468.8nm附近。
参考来源 - 水热法制备ZnSe粉体及其性能的研究So it is very meanful in reality to measure the coefficient of light absorption by aerosol particles. We made specialy the light absorption coefficient measurment system in order to satisfy the study of high power laser propagation in atmosphere.
为满足大气中强激光传播研究的需要,我们特地研制了光吸收系数测量系统。
参考来源 - 大气气溶胶粒子光吸收系数测量系统的研制The effect of metal ion doping in TiO_2 thin films shows that, it ishelpful for the formation and growth of anatase phase, surfacemorphology, photoabsorption property and photocatalysis property isimproved as well.
金属离子的掺入对TiO_2薄膜性能的影响表现在:改善薄膜的表面形貌;有利于薄膜中锐钛矿相的生长;提高了薄膜的光吸收性能和光催化能力。
参考来源 - TiOInP/InGaAs uni-traveling-carrier photodiodes (UTC-PDs) with high speed andhigh-saturation output have been developed recently. The active area of UTC-PD isconsisted of a p-type photo-absorption layer and a wide-gap electron collector layer,within it only electrons are the active carriers.
InP/InGaAs 单行载流子光电二极管(UTC-PD)是一种高速、高饱和输出的新型光电探测器,其结构特点是由p 型中性光吸收层和n 型宽带隙集结层构成,并且只用电子作为有源载流子。
参考来源 - InP/InGaAs单行载流子光电二极管的研究Particles prepared by ion-exchange method excel at photo-absorption efficiency and oxygen-adsorptive capacity than titanium dioxide.
离子交换法制备的二氧化铈的光吸收效率和吸附氧量都优于二氧化钛。
参考来源 - 二氧化铈催化剂的制备及催化性能的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
为什么叶绿素是自然界最高等的光吸收体,却需要保护?
Why does chlorophyll need protection when it is the natural world's supreme light absorber?
薄膜的光损耗主要来自光散射,以及部分光吸收。
Optical losses in thin films were mainly ascribed to light radiation and some light absorb.
以地球为例,每平米的阳光吸收量为23 9瓦特。
In the case of the Earth, the amount of sunlight absorbed is 239 watts per square metre.
And what we predict as an energy difference between two levels, we know should correspond to the energy of light that's either emitted, if we're giving off a photon, or that's absorbed if we're going to take on a photon and jump from a lower to a higher energy level.
我们预测,两个能级之间的能量差,我们知道,它要么和发出的光有关,如果它发出光子的话,要么它吸收光子,从低能级跃迁到,更高能级上去。
Absorption is just the opposite of emission, so instead of starting at a high energy level and dropping down, when we absorb light we start low and we absorb energy to bring ourselves up to an n final that's higher.
吸收就是发射的逆过程,与从一个高能量到低能量不同,当吸收光时,我们从低能量开始,吸收能量到一个更高的能量。
So that's the important take-away message from this slide. If we think about these different types of lights, microwave light, if it's absorbed by a molecule, is a sufficient amount of frequency and energy to get those molecules to rotate. That, of course, generates heat, so that's how your microwaves work.
重要的信息,如果我们看看,这些不同种类的光,微波,如果被分子吸收,它的频率和能量可以,使分子转动,这当然的,会产生热量,这就是你们微波炉的工作原理。
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