UH Raman GroupUH Raman Group
Dr. Shiv K Sharma, (Physics) 1973 (100% g fund)
Dr. Rachel C.F. Lentz, (Planetary Geology) 1998, (Postdoc)Dr. Lisa.Green, (Bio-Chemistry), 2007 (Postdoc)Dr. Ava Dykes, (Bio-Chemistry), 2006 (Postdoc)
Bio
-med
ical
re
sear
ch Dr. Lori Kamemoto, (Medicine) (Project 50% support) Dr. Qigui Yu, (Medicine) (Project 50% support) Dr. Ningjie Hu, (Medicine) (Project 50% support) Dr. Pavel Zinin, (Bio-Physicist) (Project 50% support)
Planetary
Planetary
science
science Dr. Paul Lucey (Planetary scientist)
Dr. Jeff Taylor (Planetary Science)
Dr. John Porter (LIDAR) (Project 50% support) Dr. Dave Bates (LIDAR) (Postdoc) Dr. Barry R. Lienert (LIDAR)
Dr. Anupam Misra, (Physics) 1991 (0% g fund)
What is Raman Spectroscopy ? Why need Raman Spectra ?
Laser
CCD
Notch Filter
Sample
Beam splitter
Spectrograph
Raman spectra
Vibrational modes of molecules
Depends on atomic mass, bond lengths, bond strength, configuration, etc…
Unique spectrum for each molecule
* Raman Fingerprints: Chemical detection with very high confidence level
UH Raman GroupUH Raman Group
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Raman Shift (cm-1)
Inte
nsi
ty (
a.u
.)
Typical Raman spectra (in 1 second)
801 Cyclohexane C6H12
1085
Calcite CaCO3
Laser at 0 cm-1
Not
ch f
ilte
r282
1444
• Sharp well defined peaks• Unique spectrum for each chemical• Can also tell polymorphs
UH Raman GroupUH Raman Group
Remote Raman Spectra of various minerals
UH Raman GroupUH Raman Group
Capabilities
Micro-Raman Remote-Sensing. Can analyze samples smaller than 1 nano gram• Small grains (~ micron size)• Big samples (rocks)• Low temperature (8 K)• High temperature • Low Pressure (10-6 torr)• High pressure (diamond anvil cell)• Liquids/solids/gases• Biological tissues/cells/virus – single cell• UV (244 nm), Tunable 198-240 nm Visible (457, 488, 514.5, 532 nm) NIR (752, 785, 830 nm)
Simulated Mars/Moon/Venus conditions
* Remote Raman (125 m)• Daytime/night time• Fast analysis (1-10s)• Solids/liquids/gases
• LIDAR• Raman-LIDAR• Remote LIBS• Remote RAMAN+LIBS• Remote LIF
UH Raman GroupUH Raman Group
Research Collaborations
* Global
*Multi-disciplinary
Klause Sattler (Physics) – Nano phase materialsJohn Madey (Physics) – Remote sensingDavid Muenow (Chem) – hydrous minerals (Mars analogue)
Patty Fryer (HIGP) – Hydro thermal ventsEd Scott (HIGP)– MeteoritesL. C. Ming (HIGP) – BC2N, High pressurePavel Zinin (HIGP)– Hard materials, Bio-PhysicsJeff Taylor (HIGP)– ice simulations (Moon)
EXOMARS: Fernano Rull (Spain) Shiv Sharma (Co-I on the Raman sensor.) GeoRaman International Conf. 2004 (U. of Hawaii)
• Mars Fundamental Research-Los Alamos National Lab -Roger Wiens, Sam Clagg- LANL (LIBS)
- Roger Clark (USGS)- Paul Lucey, Jeff Taylor (UH)
•Discovery mission (Venus)- Los Alamos, JPL, Colorado
ASTED (astrobiology Science & Tech Explora Prog.) NASA Langley (MIDDP, PIDDP) …MSL proposal $45M (X)
-UH built a prototype Remote Raman for NASA
ChemImage (Pat Treado) – Remote RamanAlakai Consult. & Eng. (Guy Ontai) – Remote Raman, LIBS
Lori Kamemoto, Qigui Yu, Ningjie Hu, (Medical Sch. UH) HIV, Virus, bio-agents, cancer etc..
Angel Yanagihara, Pac. BioSc. Res. Center, UH, Fish venom
UH Raman GroupUH Raman Group
Research Grants
(a) UH/State/intramural support: $0,000,000
(b) Current Extramural Support: $3,850,000
(c) Pending Extramural Support: $1,500,000
Past ten years extramural funds ~ $6.97 Millions(not counting $55.8 Millions for FEL (Physics).
UH Raman GroupUH Raman Group
UH Raman Group
Current Extramural Support
1. ONR IED program, $619,234 2005-2008, Stand-off Detection of Explosives, (Sharma, Lucey)
2. Army Research Office, $1,698,669 2006-2008, Detection of Bioagents (Sharma, Lori Kamemoto)
3. ChemImage Corp. $324,503 2007-2008, UH Sensor for IED detection (Sharma)
4. Alakai Consl. (Army RO) $53,598 2007-2009, Advance detection of explosive (Sharma)
5. NASA-MFRP $388,652 2007-2009, LIBS on alteration Minerals(Sharma, Lentz, Clegg (LANL))
6. US DOE (Mat.Sc) $558,156 2007-2010, Synthesis BCx phases (Ming, Zinin, Sharma)
Pending Extramural Support
1. NASA-MIDP (LaRC) $619,698 2008-2010, Combined Raman, Fluorescence & Lidar sensor Sharma, Lucey, Misra, Abedin, Ismail, Bradley –
LaRC2. NASA-MIDP (LANL) $514,854 2008-2011, Integrated Raman LIBS spectrosc (Rover)
Wiens, Clegg – LANL, Lucey, Sharma3. ONR (IED) $710,88 2008-2010, Combined stand-off Raman+LIBS for explosive residue
Sharma, Lucey, Misra4. NASA-PIDDP $279,514 2008-2010, CRLLS sensor
Sharma, Misra, Abedin-NASA LaRC5. Alakai (Hi Tech Dev.) $74,819 2007-2008, Duel Use UV Raman Spectrometer
Sharma, Misra
UH Remote Raman UH Remote Raman SystemSystem
Holmes Hall (128 m)
HIGP (66m)
UH Raman GroupUH Raman Group
0
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Raman Shift (cm-1)
50 m
Single Pulse spectra of Sulfur from 50 and 100 m
Inte
nsi
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a.u.
)
100 m
85
153 21
9
473
UH Raman GroupUH Raman Group
High frequency region is useful in detecting water.
Raman Shift (cm-1)
Inte
nsi
ty (
a.u.
)
Gypsum CaSO4.2H2O
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1007
1136
67161
949
341
4
1 second
50 m
100 m
O2
1556
N2
2331
3405 34
95
UH Raman GroupUH Raman Group
0
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8% TNT on Silica532 nm, 50 Hz, 32 mJ/pulse100 micron slit, gated 2 µs
Raman Shift (cm-1)
Cou
nts
x 10
5
30 s
10 s
1 s
125 m
x10
x2
1366
1534
1618
1210
1556 (O2)
2331
(N
2)
UH Raman GroupUH Raman Group
811
153
2
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9
135
7
161
51
556
(O
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811
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(O
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811
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7
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556
(O
2)
1556
(O
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885
1216
1275
1310
Raman Shift (cm-1)
1556
(O
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885
1216
1275
1310
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885
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Raman Shift (cm-1)
Successful field test for explosive
detectionduring dust storm
December 2007 Fort Irwin, Mojave Desert
UH Raman GroupUH Raman Group
Future Directions: • Develop Raman van/truck• UV / NIR systems (invisible /Eye safe)• Combined Raman + LIBS + LIF
sensors• Miniature systems for Rover• Raman Lidar (Environmental
monitoring)• Small portable system for Geologist• Remote Underwater Raman system
* Micro-Raman (Improve detection limits by using Nanoparticles, Nanofilms, special substrates). Study of biological processes, chemical reactions etc…
• Need for Material Synthesis lab (in the future)
UH Raman GroupUH Raman Group
UH Raman GroupUH Raman Group
Show Video (57 seconds long) of - UH remote Raman system in field during dust storm- Single pulse spectra of gypsum at 50 m (measurements through two ¼” thick glass windows)
December 2007 Fort Irwin, Mojave Desert
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