公开(公告)号：US06532072B1

公开(公告)日：2003-03-11

申请号：US09523987

申请日：2000-03-13

申请人： Craig C. Largent

发明人： Craig C. Largent

IPC分类号： G01N2100

CPC分类号： G01J3/42 ,  G01N21/39

摘要： A cavity ring-down spectroscopy device and method suitable for materials with low and high absorption coefficients. An optical signal introduced into an optical cavity resonates through a length of fiber amplifier coupled to the optical cavity. The optical signal resonates through a fiber amplifier active section resulting in a gain compensating for optical losses. The gain obtained by use of the fiber amplifier is then modulated between two predetermined levels. By virtue of employing an optical fiber, the cavity ring down spectroscopy device and method is insensitive to misalignment and therefore iminently capable of portability.

摘要翻译： 一种适用于具有低吸收系数和高吸收系数的材料的腔体衰减光谱装置和方法。 引入到光腔中的光信号通过耦合到光腔的光纤放大器的长度进行谐振。 光信号通过光纤放大器有源部分谐振，导致补偿光损耗的增益。 然后通过使用光纤放大器获得的增益在两个预定电平之间进行调制。 通过采用光纤，空腔环形光谱装置和方法对不对准不敏感，因此具有极强的便携性。

公开(公告)号：US6063642A

公开(公告)日：2000-05-16

申请号：US719012

申请日：1996-09-24

申请人： Peter S. Zory, Jr. ,  Douglas A. Hudson, Jr. ,  Michael J. Grove ,  Craig C. Largent

发明人： Peter S. Zory, Jr. ,  Douglas A. Hudson, Jr. ,  Michael J. Grove ,  Craig C. Largent

IPC分类号： C25D11/32 ,  H01L21/3063 ,  H01L21/316 ,  H01L21/465 ,  H01L21/471 ,  H01L21/00

CPC分类号： H01L21/471 ,  H01L21/465 ,  H01S5/042 ,  H01S5/0425 ,  H01L33/40 ,  H01S5/183

摘要： A method is disclosed for generating light in one or more buried layers of a multilayer compound semiconductor material by contacting the material with a tansparent, electrically conducting fluid and passing current between the fluid and the semiconductor material. The measured characteristics of the light emitted from a first semiconductor material may be compared with those measured from a second semiconductor material of known properties, and the properties of the first semiconductor material calculated. Uniformity maps of the compound semiconductor material may be prepared using the patterns of various light emission characteristics measured across the surface of the material.

摘要翻译： 公开了一种用于在多层化合物半导体材料的一个或多个掩埋层中产生光的方法，该材料通过使材料与透明导电流体接触并在流体和半导体材料之间传递电流。 可以将从第一半导体材料发射的光的测量特性与从已知性质的第二半导体材料测量的特性进行比较，并且计算第一半导体材料的性质。 可以使用在材料表面上测量的各种发光特性的图案来制备化合物半导体材料的均匀性图。

公开(公告)号：US5371757A

公开(公告)日：1994-12-06

申请号：US147240

申请日：1993-10-22

申请人： Craig C. Largent

发明人： Craig C. Largent

IPC分类号： H01S5/026 ,  H01S5/062 ,  H01S5/50 ,  H01S3/19 ,  H01L15/00

CPC分类号： H01S5/50 ,  H01S5/026 ,  H01S5/06226 ,  H01S5/5018

摘要： A semiconductor master oscillator generates light which seeds a pair of semiconductor power amplifiers which straddle the oscillator. The power amplifiers have slightly misaligned mirror facets which induce substantial resonator losses in the amplifiers and as a result, the amplifier gain is very high and the modulating speed of the oscillator is also very high.

摘要翻译： 半导体主振荡器产生将跨越振荡器的一对半导体功率放大器种子的光。 功率放大器具有稍微不对准的镜面，其在放大器中引起实质的谐振器损耗，结果是放大器增益非常高，并且振荡器的调制速度也非常高。