Direct and quantitative broadband absorptance spectroscopy with multilayer cantilever probes
Abstract
A system for measuring the absorption spectrum of a sample is provided that includes a broadband light source that produces broadband light defined within a range of an absorptance spectrum. An interferometer modulates the intensity of the broadband light source for a range of modulation frequencies. A bi-layer cantilever probe arm is thermally connected to a sample arm having at most two layers of materials. The broadband light modulated by the interferometer is directed towards the sample and absorbed by the sample and converted into heat, which causes a temperature rise and bending of the bi-layer cantilever probe arm. A detector mechanism measures and records the deflection of the probe arm so as to obtain the absorptance spectrum of the sample.
- Inventors:
- Issue Date:
- Research Org.:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1178245
- Patent Number(s):
- 9012849
- Application Number:
- 13/937,713
- Assignee:
- Massachusetts Institute of Technology (Cambridge, MA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- FG02-02ER45977
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2013 Jul 09
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Hsu, Wei-Chun, Tong, Jonathan Kien-Kwok, Liao, Bolin, and Chen, Gang. Direct and quantitative broadband absorptance spectroscopy with multilayer cantilever probes. United States: N. p., 2015.
Web.
Hsu, Wei-Chun, Tong, Jonathan Kien-Kwok, Liao, Bolin, & Chen, Gang. Direct and quantitative broadband absorptance spectroscopy with multilayer cantilever probes. United States.
Hsu, Wei-Chun, Tong, Jonathan Kien-Kwok, Liao, Bolin, and Chen, Gang. Tue .
"Direct and quantitative broadband absorptance spectroscopy with multilayer cantilever probes". United States. https://www.osti.gov/servlets/purl/1178245.
@article{osti_1178245,
title = {Direct and quantitative broadband absorptance spectroscopy with multilayer cantilever probes},
author = {Hsu, Wei-Chun and Tong, Jonathan Kien-Kwok and Liao, Bolin and Chen, Gang},
abstractNote = {A system for measuring the absorption spectrum of a sample is provided that includes a broadband light source that produces broadband light defined within a range of an absorptance spectrum. An interferometer modulates the intensity of the broadband light source for a range of modulation frequencies. A bi-layer cantilever probe arm is thermally connected to a sample arm having at most two layers of materials. The broadband light modulated by the interferometer is directed towards the sample and absorbed by the sample and converted into heat, which causes a temperature rise and bending of the bi-layer cantilever probe arm. A detector mechanism measures and records the deflection of the probe arm so as to obtain the absorptance spectrum of the sample.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 21 00:00:00 EDT 2015},
month = {Tue Apr 21 00:00:00 EDT 2015}
}
Works referenced in this record:
Scanning analysis and imaging system with modulated electro-magnetic energy source
patent, October 1991
- Dumoulin, Charles L.
- US Patent Document 5,060,248
Dual interferometer spectroscopic imaging system
patent, February 1994
- Dumoulin, Charles L.
- US Patent Document 5,285,261
Apparatus and method for spectroscopic measurement as a deflection of a bimorph carrying a sample that is heated by radiation
patent, April 1998
- Gerber, Christoph; Gimzewski, James K.; Reihl, Bruno
- US Patent Document 5,737,086
Dynamic power control, beam alignment and focus for nanoscale spectroscopy
patent, August 2012
- Prater, Craig; Lo, Michael; Gotthard, Doug
- US Patent Document 8,242,448
Photoacoustic Microcantilevers
patent-application, February 2010
- Thundat, Thomas G.; Van Neste, Charles W.; Brown, Gilbert M.
- US Patent Application 12/488238; 20100033723
Direct and quantitative broadband absorptance spectroscopy on small objects using Fourier transform infrared spectrometer and bilayer cantilever probes
journal, February 2013
- Hsu, Wei-Chun; Tong, Jonathan K.; Liao, Bolin
- Applied Physics Letters, Vol. 102, Issue 5
Detection of anthrax simulants with microcalorimetric spectroscopy: Bacillus subtilis and Bacillus cereus spores
journal, January 2003
- Arakawa, Edward T.; Lavrik, Nickolay V.; Datskos, Panos G.
- Applied Optics, Vol. 42, Issue 10
Application of laser photothermal spectroscopy for standoff detection of trace explosive residues on surfaces
journal, September 2010
- Skvortsov, L. A.; Maksimov, E. M.
- Quantum Electronics, Vol. 40, Issue 7
Photothermal technique using individual cantilevers for quality monitoring in thin film devices
journal, July 2009
- Gotoh, Tamihiro
- Review of Scientific Instruments, Vol. 80, Issue 7
Optomechanical spectroscopy with broadband interferometric and quantum cascade laser sources
journal, January 2011
- Tetard, L.; Passian, A.; Farahi, R. H.
- Optics Letters, Vol. 36, Issue 16