AR015281A1 - UN PROCEDIMIENTO DE EXITACIoN DE UNA CAVIDAD oPTICA PARA LA DETECCION DE RASTROS DE GAS. - Google Patents
UN PROCEDIMIENTO DE EXITACIoN DE UNA CAVIDAD oPTICA PARA LA DETECCION DE RASTROS DE GAS.Info
- Publication number
- AR015281A1 AR015281A1 ARP990102020A ARP990102020A AR015281A1 AR 015281 A1 AR015281 A1 AR 015281A1 AR P990102020 A ARP990102020 A AR P990102020A AR P990102020 A ARP990102020 A AR P990102020A AR 015281 A1 AR015281 A1 AR 015281A1
- Authority
- AR
- Argentina
- Prior art keywords
- cavity
- laser
- frequency
- teeth
- analyzed
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Lasers (AREA)
Abstract
Un procedimiento de deteccion de gas en el estado de trazas por un láser de semiconductor acoplado a una cavidad optica resonante que contiene una especiequímica a analizar. El láser es acoplado a la cavidad de manera que la luz solo sea reenviadaha cia el láser cuando la cavidad se encuentra en un modo deresonancia. El láser suministra una emision amplificada y afinada sobre la frecuencia reinyectada y, cuando se le aplica un dentado de corriente, su frecuenciase desplaza de una frecuenciainic ial determinada a una frecuencia final determinada. El láser es excitado por un primer dentado de corriente de manera que sufrecuencia se bloquea secuencialmente sobre los modos sucesivos de la cavidad. Se mide el tiempo de decrecimiento de laintens idad luminosa en la cavidad alfinal del dentado y se repiten las etapas de excitacion y de medicion para los dentados de corrientes sucesivos, para cubrir un campo espectral a analizar.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9805753A FR2778244B1 (fr) | 1998-04-30 | 1998-04-30 | Procede d'excitation d'une cavite optique pour la detection de gaz a l'etat de traces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR015281A1 true AR015281A1 (es) | 2001-04-18 |
Family
ID=9526106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP990102020A AR015281A1 (es) | 1998-04-30 | 1999-04-30 | UN PROCEDIMIENTO DE EXITACIoN DE UNA CAVIDAD oPTICA PARA LA DETECCION DE RASTROS DE GAS. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6504145B1 (es) |
| EP (1) | EP1075651B1 (es) |
| AR (1) | AR015281A1 (es) |
| CA (1) | CA2330531C (es) |
| DE (1) | DE69918546T2 (es) |
| FR (1) | FR2778244B1 (es) |
| WO (1) | WO1999057542A1 (es) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2830617B1 (fr) | 2001-10-10 | 2004-01-30 | Univ Joseph Fourier | Dispositif a laser couple a une cavite par retroaction optique pour la detection de traces de gaz |
| US20050062972A1 (en) * | 2003-09-22 | 2005-03-24 | Krusen Calvin R. | System and method for cavity ring-down spectroscopy using continuously varying continuous wave excitation |
| US7569823B2 (en) * | 2006-11-10 | 2009-08-04 | The George Washington University | Compact near-IR and mid-IR cavity ring down spectroscopy device |
| US7541586B2 (en) * | 2006-11-10 | 2009-06-02 | The George Washington University | Compact near-IR and mid-IR cavity ring down spectroscopy device |
| US20090056418A1 (en) * | 2007-08-30 | 2009-03-05 | Honeywell International Inc. | Method and System for Groundwater Contaminant Monitoring |
| DE102007042172A1 (de) | 2007-09-05 | 2009-03-12 | Fabiola Basan | Verfahren und optische Anordnung zur breitbandigen Messung geringer optischer Verluste |
| DE202008006598U1 (de) | 2008-04-11 | 2008-10-02 | Alk-Abelló A/S | Allergie-Impfstoff-Formulierung zur mucosalen Verabreichung |
| FR2938916B1 (fr) | 2008-11-24 | 2012-10-19 | Ap2E | Dispositif d'echantillonnage de gaz. |
| US8911145B2 (en) | 2009-11-20 | 2014-12-16 | The United States Of America As Represented By The Secretary Of The Navy | Method to measure the characteristics in an electrical component |
| US8327686B2 (en) * | 2010-03-02 | 2012-12-11 | Li-Cor, Inc. | Method and apparatus for the photo-acoustic identification and quantification of analyte species in a gaseous or liquid medium |
| CN101871879B (zh) * | 2010-07-16 | 2011-11-09 | 中南大学 | 基于微谐振环阵列分光技术的微量气体探测方法及探测器 |
| US8665442B2 (en) | 2011-08-18 | 2014-03-04 | Li-Cor, Inc. | Cavity enhanced laser based isotopic gas analyzer |
| US8659759B2 (en) | 2011-08-25 | 2014-02-25 | Li-Cor, Inc. | Laser based cavity enhanced optical absorption gas analyzer |
| US8659758B2 (en) | 2011-10-04 | 2014-02-25 | Li-Cor, Inc. | Laser based cavity enhanced optical absorption gas analyzer with laser feedback optimization |
| US20150168748A1 (en) * | 2012-06-20 | 2015-06-18 | Cornell University | High frequency resonator modulator apparatus, method and applications |
| WO2014070952A1 (en) * | 2012-11-02 | 2014-05-08 | Li-Cor, Inc. | Cavity enhanced laser based gas analyzer systems and methods |
| US9194742B2 (en) * | 2012-11-02 | 2015-11-24 | Li-Cor, Inc. | Cavity enhanced laser based gas analyzer systems and methods |
| US8885167B2 (en) | 2012-11-02 | 2014-11-11 | Li-Cor, Inc. | Cavity enhanced laser based gas analyzer systems and methods |
| US10925515B2 (en) | 2014-05-22 | 2021-02-23 | Picomole Inc. | Alveolar breath collection apparatus |
| CA2998026A1 (en) | 2017-03-13 | 2018-09-13 | Picomole Inc. | Apparatus and method of optimizing laser system |
| US10527492B2 (en) | 2017-05-16 | 2020-01-07 | Li-Cor, Inc. | Mode matching method for absorption spectroscopy systems |
| US10168275B2 (en) | 2017-05-23 | 2019-01-01 | International Business Machines Corporation | Untuned resonance traced gas sensing |
| US11022544B2 (en) | 2017-09-19 | 2021-06-01 | Sparrow Detect, Inc. | Generating signatures based on sensing gas concentration conditions |
| US10724946B2 (en) | 2017-09-19 | 2020-07-28 | Sparrow Detect, Inc. | Tunable light source cavity detection using a plurality of axial-plus-transverse modes |
| US11035789B2 (en) | 2019-04-03 | 2021-06-15 | Picomole Inc. | Cavity ring-down spectroscopy system and method of modulating a light beam therein |
| US11957450B2 (en) | 2020-02-28 | 2024-04-16 | Picomole Inc. | Apparatus and method for collecting a breath sample using an air circulation system |
| US11782049B2 (en) | 2020-02-28 | 2023-10-10 | Picomole Inc. | Apparatus and method for collecting a breath sample using a container with controllable volume |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4793709A (en) * | 1985-08-16 | 1988-12-27 | Litton Systems, Inc. | Method and apparatus for measuring the losses of an optical cavity |
| US5026991A (en) * | 1989-09-20 | 1991-06-25 | Spectral Sciences, Inc. | Gaseous species absorption monitor |
| US5432610A (en) * | 1994-04-15 | 1995-07-11 | Hewlett-Packard Company | Diode-pumped power build-up cavity for chemical sensing |
| US5528040A (en) * | 1994-11-07 | 1996-06-18 | Trustees Of Princeton University | Ring-down cavity spectroscopy cell using continuous wave excitation for trace species detection |
| US5912740A (en) * | 1997-06-20 | 1999-06-15 | The Board Of Trustees Of The Leland Stanford Junior University | Ring resonant cavities for spectroscopy |
-
1998
- 1998-04-30 FR FR9805753A patent/FR2778244B1/fr not_active Expired - Fee Related
-
1999
- 1999-04-30 AR ARP990102020A patent/AR015281A1/es active IP Right Grant
- 1999-04-30 CA CA002330531A patent/CA2330531C/en not_active Expired - Lifetime
- 1999-04-30 WO PCT/FR1999/001030 patent/WO1999057542A1/fr active IP Right Grant
- 1999-04-30 US US09/674,627 patent/US6504145B1/en not_active Expired - Lifetime
- 1999-04-30 EP EP99916963A patent/EP1075651B1/fr not_active Expired - Lifetime
- 1999-04-30 DE DE69918546T patent/DE69918546T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999057542A1 (fr) | 1999-11-11 |
| EP1075651B1 (fr) | 2004-07-07 |
| CA2330531C (en) | 2009-04-28 |
| EP1075651A1 (fr) | 2001-02-14 |
| DE69918546T2 (de) | 2005-07-28 |
| DE69918546D1 (de) | 2004-08-12 |
| FR2778244B1 (fr) | 2000-07-13 |
| US6504145B1 (en) | 2003-01-07 |
| FR2778244A1 (fr) | 1999-11-05 |
| CA2330531A1 (en) | 1999-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant, registration |