REDUCTION OF CONVECTIVE LOW-FREQUENCY NOISE IN THERMAL LENS SPECTROMETRY

被引：25

作者：

ALFONSO, EFS ^{[1
]}

REVERT, MAR ^{[1
]}

ALVAREZCOQUE, MCG ^{[1
]}

RAMOS, GR ^{[1
]}

机构：

[1] UNIV VALENCIA,DEPT ANALYT CHEM,E-46100 BURJASSOT,SPAIN

来源：

APPLIED SPECTROSCOPY | 1990年 / 44卷 / 09期

关键词：

D O I：

10.1366/0003702904417779

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The construction and optimization of a thermal lens spectrometer with coaxial pump/probe configuration is reported. The low-frequency noise of convective origin is studied in detail, and it is demonstrated that a horizontal slit, instead of a pinhole, can be used as a simple way of reducing the noise to a negligible level without losing sensitivity.

引用

页码：1501 / 1507

页数：7

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