公开(公告)号：US3831030A

公开(公告)日：1974-08-20

申请号：US39520373

申请日：1973-09-07

Applicant: TEXAS INSTRUMENTS INC

Inventor： WROBEL J ,  BATE R

IPC: G01N21/39 ,  H01L21/00 ,  H01S5/062 ,  H01S5/32 ,  H01J11/00

CPC classification number: H01S5/32 ,  G01N21/39 ,  H01L21/00 ,  H01S5/0622

Abstract: A system for spectroscopic analysis is disclosed, the system being laser-operated and including a semiconductor diode laser fabricated from a lead-germanium telluride crystal. An infrared detector is disposed in the optical path of the laser, with a sample holder being positioned between the laser and the infrared detector. The sample being analyzed may comprise a gas and/or vapor having infrared absorption bands matching the wavelength of the laser output to enable the system to perform spectroscopic analysis of the sample.

Abstract translation: 公开了一种用于光谱分析的系统，该系统是激光操作的，并且包括由铅 - 锗碲化物晶体制造的半导体二极管激光器。 红外检测器设置在激光的光路中，样品保持器位于激光和红外检测器之间。 被分析的样品可以包括具有与激光输出的波长匹配的红外吸收带的气体和/或蒸气，以使系统能够对样品进行光谱分析。

公开(公告)号：US3800243A

公开(公告)日：1974-03-26

申请号：US16381971

申请日：1971-07-19

Applicant: TEXAS INSTRUMENTS INC

Inventor： WROBEL J ,  BATE R

IPC: G01N21/39 ,  H01S5/062 ,  H01S5/32 ,  H01S3/00

CPC classification number: G01N21/39 ,  H01S5/0622 ,  H01S5/32

Abstract: A semiconductor diode laser has been fabricated from a leadgermanium telluride cyrstal. For example, a Pb0.95Ge0.05Te diode has been found to exhibit peak emission at a wavelength of 4.45 Mu . Compositional tuning of the device enables the selection of any desired peak emission wavelength within the approximate range of 2 to 6 Mu , which is useful for the spectroscopic determination of atmospheric gases and/or pollutants, including particularly carbon monoxide, carbon dioxide and nitric oxide.

Abstract translation: 半导体二极管激光器已经由铅 - 锗碲化镓制成。 例如，已经发现Pb0.95Ge0.05Te二极管在波长4.45μm处表现出峰值发射。 该器件的组成调谐使得能够选择在2至6微米的近似范围内的任何期望的峰值发射波长，这对于大气气体和/或污染物（特别是一氧化碳，二氧化碳和一氧化氮）的光谱测定是有用的。