Construction and characterization of a diode laser system for atomic spectrometric experiments

Galbács, Gábor; Galbács, Zoltán; Geretovszky, Zsolt

doi:10.1016/s0026-265x(02)00047-4

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…The construction and characterization of a simple but flexible low cost laser diode system for atomic spectroscopy was reported 360 from Hungary. Detailed electronic circuit layouts of the diode laser current controller, supplying a maximum of 1300 mA current with 1 mA resolution, and functional descriptions of all other components were given.…”

Section: Instrumentationmentioning

confidence: 99%

“…Galbacs et al 360 constructed and characterized a diode laser system for atomic spectroscopy, with detailed electronic circuit layouts of the laser current controller supplying 1300 mA and also a functional description of all other components, such as temperature controller and optics. Results from electronic and spectroscopic tests show that wavelength may be tuned to a precision of 0.01 nm and current modulation frequency up to 10 kHz.…”

Section: Laser Atomic Absorptionmentioning

confidence: 99%

See 1 more Smart Citation

Atomic spectrometry update. Advances in atomic emission, absorption and fluorescence spectrometry and related techniques

Evans

Day

Fisher

et al. 2004

J. Anal. At. Spectrom.

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Section: Instrumentationmentioning

confidence: 99%

Section: Laser Atomic Absorptionmentioning

confidence: 99%

Atomic spectrometry update. Advances in atomic emission, absorption and fluorescence spectrometry and related techniques

Evans

Day

Fisher

et al. 2004

J. Anal. At. Spectrom.

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“…For the purposes of this study it was necessary to design and build custom equipment which had to meet certain requirements such as easy handling, reproducibility of the results in controlled environment and simple interface for setting input parameters before each new study. Similar assembly designs for laser diode output control were found in [11,12]. Light excitation of CQD is provided using violet laser light.…”

mentioning

confidence: 93%

Voltage controlled power characteristics of a custom made laser diode assembly

Klisic

Radovanović

Bezanic

et al. 2014

2014 22nd Telecommunications Forum Telfor (TELFOR)

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Construction and characterization of a simple but flexible, low cost diode laser system for the excitation of carbon quantum dots as a treatment method for ocular cancers is reported. System was designed to deliver maximal amount of laser diode radiant flux to the eye of the test mice using optical cable. Detailed electronic circuit layouts of the laser diode voltage controller, supplying maximum 3 V of voltage with 20 mV resolutions, and functional description of all other components (optical cable delivery system and supporting console) are given. The system features visual signalization when the laser diode module is powered. Since the laser diode radiant flux is directly dependent on the input voltage, measurement was performed in order to obtain approximation function of this dependency. Purpose of this function is to eliminate radiant flux measurement before each experiment which requires controlled conditions Keywords -carbon quantum dots, laser excitation, laser diode assembly, voltage control, radiant flux or e Klisi is with the

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Laser Spectrometric Techniques in Analytical Atomic Spectrometry

Axner

Galbács

2012

Encyclopedia of Analytical Chemistry

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The main purpose of this article is to describe the theory, instrumentation, and analytical performance of laser analytical atomic spectrometry, focusing on absorption, fluorescence, and ionization techniques. The structure of the article is such that it first provides an outline of the theory of light‐matter interactions that prevail for each type of technique as well as of the most common modulation techniques, primarily, wavelength modulation (WM). This is followed by a section that covers the most important types of instrumentation used. The article finally provides a detailed discussion on the specific instrumentation, mode of operation, use, performance, and applications (both analytical and diagnostic) of each technique. In terms of laser atomic absorption, the focus of the discussion is on the use of approaches to enhance the detection capability by either reducing the amount of noise (as is done by the wavelength modulation absorption spectrometry (WMAS) technique) or by providing an extended interaction length (giving rise to cavity‐enhanced absorption spectrometry (CEAS) techniques in general, and cavity ring‐down spectrometry (CRDS) in particular). Laser atomic fluorescence techniques (often referred to as laser‐excited atomic fluorescence spectrometry ( LEAFS )) as well as laser ionization techniques (termed either laser‐enhanced ionization ( LEI ) or resonance ionization spectrometry ( RIS )) are also covered in some detail. It is shown that several of these techniques are capable of detecting a variety of elements in liquid samples down to low picogram per milliliter (pg mL −1 ) or parts‐per‐trillion (ppt) concentrations and in low femtogram amounts. Also other properties of the techniques, e.g. selectivity and linear dynamic range (LDR), are in general superior to those of conventional (nonlaser‐based techniques).

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Construction and characterization of a diode laser system for atomic spectrometric experiments

Cited by 8 publications

References 12 publications

Atomic spectrometry update. Advances in atomic emission, absorption and fluorescence spectrometry and related techniques

Atomic spectrometry update. Advances in atomic emission, absorption and fluorescence spectrometry and related techniques

Voltage controlled power characteristics of a custom made laser diode assembly

Laser Spectrometric Techniques in Analytical Atomic Spectrometry

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