Question

各位专家们 小弟想让你们帮忙译成英文 毕业论文 急用 谢谢！！！

----半导体激光器是一种非常方便的光源，具备紧凑、耐用、便携和强大等特点。然而，典型半导体激

光器通常为窄带设备，只能以特有波长发出单色光。相比之下，超宽带激光器具有显著的优势，可以同

时在更宽的光谱范围内选取波长。制造出可在范围广泛的操作环境下可靠运行的超宽带激光器正是科学

家们长久以来追求的一个目标。

----为了研制出新型的激光器，贝尔实验室科学家们采用了650余种光子学中使用的标准半导体材料

，并将其叠放在一起组成一个“多层三明治”。这些层面共分为36组，其中不同层面组在感光属性方面

有着细微的差别，并在特有的短波长范围内生成光，同时与其他各组之间保持透明.所有这些层面组结合

在一起，就能发射出宽带激光。

----新型激光器隶属于一种称为量子瀑布（QC）激光器的高性能半导体激光器。QC激光器由

Federico Capasso和AlfredCho及其同事于1994年在贝尔实验室发明，其操作过程非常类似于一道电子

瀑布。当电流通过激光器时，电子瀑布将沿着能量阶梯奔流而下；每当其撞击一级阶梯时，就会放射出

红外光子。这些红外光子在包含电子瀑布的半导体共振器内前后反射，从而激发出其他光子。这一放大

过程将产生出很高的输出能量。

----超宽带激光器可在6~8微米红外波长范围产生1.3瓦的峰值能量。Gmachl指出：“从理论上讲，

波长范围可以更宽或更窄。选择6~8微米范围波长发射激光，目的是更令人信服地演示我们的想法。未来

，我们可以根据诸如光纤应用等具体应用的特定需求量身定制激光器。

Answer 1

----半导体激光器是一种非常方便的光源，具备紧凑、耐用、便携和强大等特点。然而，典型半导体激
----The semiconductor laser device is one kind of very convenient illuminant , has characteristics such as compact , durable , just carry and big and powerful. Representative semiconductor is exciting but,

光器通常为窄带设备，只能以特有波长发出单色光。相比之下，超宽带激光器具有显著的优势，可以同
The glossy ware is narrow belt equipment generally , can only issue monocolour brightness with proper wavelength. By contrast, the super-broadband laser device has notable advantage , can be same

时在更宽的光谱范围内选取波长。制造出可在范围广泛的操作环境下可靠运行的超宽带激光器正是科学
Choose wavelength now and then within broader spectrum range. Make out of the super-broadband laser device may work reliably under broad range operation environment exactly being science

家们长久以来追求的一个目标。
A target that family runs after since long.

----为了研制出新型的激光器，贝尔实验室科学家们采用了650余种光子学中使用的标准半导体材料
----For developing out the late-model laser device , Bell laboratory, scientists have adopt the standard semiconductor materials being put into use among more than 650 kind photonics

，并将其叠放在一起组成一个“多层三明治”。这些层面共分为36组，其中不同层面组在感光属性方面
,And, the person is set free pack being composed of a "Dagwood " together. Be 36 set together mark , be unlike tier of face group among them face to face these tiers in the field of the attribute reacting to light

有着细微的差别，并在特有的短波长范围内生成光，同时与其他各组之间保持透明.所有这些层面组结合
Have the minute difference, and generate brightness within proper long short wave range, every keeps a lucency at the same time and other between the set. Possessions combines set face to face these tiers

在一起，就能发射出宽带激光。
Together, be therefore likely to launch out broadband laser.

----新型激光器隶属于一种称为量子瀑布（QC）激光器的高性能半导体激光器。QC激光器由
----The new model laser device appertains to one kind of the high-performance semiconductor laser device being called the quantum waterfall (QC) laser device. QC laser device reason

Federico Capasso和AlfredCho及其同事于1994年在贝尔实验室发明，其操作过程非常类似于一道电子
Capasso and AlfredCho and their colleague invents Federico on 1994 in Bell laboratory, a whose electron very similar to handling process

瀑布。当电流通过激光器时，电子瀑布将沿着能量阶梯奔流而下；每当其撞击一级阶梯时，就会放射出
Waterfall. While electric current passes a laser device, the electron waterfall will move downwards along energy ladder racing current; Whenever the person collide with one-level ladder time , are therefore likely emit

红外光子。这些红外光子在包含电子瀑布的半导体共振器内前后反射，从而激发出其他光子。这一放大
Infrared photon. These infrared photons are stimulated thereby within the semiconductor resonator containing the electron waterfall around reflecting, other photon. This one amplification

过程将产生出很高的输出能量。
Process will produce out the very high output energy

----超宽带激光器可在6~8微米红外波长范围产生1.3瓦的峰值能量。Gmachl指出：“从理论上讲，
----Be over width brings a laser device along but range produces 1.3 earthen peak value energies in 6 ~ 8 infrared micron wavelength. Gmachl points out: "From talking theoretically,

波长范围可以更宽或更窄。选择6~8微米范围波长发射激光，目的是更令人信服地演示我们的想法。未来
Wavelength range can be broader or narrower. The wavelength choosing 6 ~ 8 micron range launches laser , purpose is the idea demonstrating us more convincing. Future

，我们可以根据诸如光纤应用等具体应用的特定需求量身定制激光器。
,We can need amounts bodies according to specially appointed that fibre-optical application waits for to apply concretely such as making a laser device customarily.

Answer 2

----The semiconductor laser is one kind of very convenient photo source, has compact, durable, portable and formidable and so on characteristics. However, the typical semiconductor stirs up the light usually is the narrow band equipment, can only send out the monochromatic light by the unique wave length. Comparatively, the ultra-wide band laser has the remarkable superiority, may with when selects the wave length in the wider spectral region. Makes may under the scope widespread operating environment the reliability service ultra-wide band laser be precisely a goal which science for long pursues. ----In order to develop the new laser, the Bell Lab scientists have used standard semiconducting material which in 650 kind of photonics uses, and puts its pack in the same place composes “the multi-layered sandwich”. These stratification planes altogether divide into 36 groups, the different stratification plane group has the slight difference in photosensitive attribute aspect , and becomes the light endogenous in the unique short wavelength range, simultaneously maintains transparent with other each group between. All these stratification plane group unifies in the same place, can launch the wide band laser. ----The new laser subordinates in one kind is called the quantum waterfall (QC) laser's high performance semiconductor laser. The QC laser invented by Federico Capasso and AlfredCho and the colleague in 1994 in the Bell Lab, its operating process was similar in together electronic the waterfall. When electric current through laser, the electronic waterfall will flow rapidly along the energy steps and ladders under; When its hit first-level steps and ladders, will emit the infrared photon. These infrared photons in contain the electronic waterfall in the semiconductor resonator around to reflect, thus stimulates other photons. This will enlarge the process to have the very high output energy. ----The ultra-wide band laser may have 1.3 tile peak energy in 6~8 micron infrared wavelength ranges. Gmachl pointed out: “theoretically speaking, the wavelength range may wider or is narrower. Chooses 6~8 micron scope wave length launch laser, the goal is demonstrates our idea persuasively. In the future , we may act according to such as the optical fiber using and so on concrete application specific demand body to have custom-made the laser.