uh raman group
DESCRIPTION
UH Raman Group. Dr. Shiv K Sharma, (Physics) 1973 (100% g fund). Dr. Anupam Misra, (Physics) 1991 (0% 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). - PowerPoint PPT PresentationTRANSCRIPT
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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)
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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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0
5000
10000
15000
0 200 400 600 800 1000 1200 1400 1600
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
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Remote Raman Spectra of various minerals
UH Raman GroupUH Raman Group
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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
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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
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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
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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
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UH Remote Raman UH Remote Raman SystemSystem
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Holmes Hall (128 m)
HIGP (66m)
UH Raman GroupUH Raman Group
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0
20000
40000
60000
100 200 300 400 500 600 700 800 900 1000
Raman Shift (cm-1)
50 m
Single Pulse spectra of Sulfur from 50 and 100 m
Inte
nsi
ty (
a.u.
)
100 m
85
153 21
9
473
UH Raman GroupUH Raman Group
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High frequency region is useful in detecting water.
Raman Shift (cm-1)
Inte
nsi
ty (
a.u.
)
Gypsum CaSO4.2H2O
0
20000
40000
60000
80000
100000
120000
0 500 1000 1500 2000 2500 3000 3500 4000 4500
1007
1136
67161
949
341
4
1 second
50 m
100 m
O2
1556
N2
2331
3405 34
95
UH Raman GroupUH Raman Group
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0
10
20
30
40
500 1000 1500 2000
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
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811
153
2
120
9
135
7
161
51
556
(O
2)
811
153
2
120
9
135
7
161
51
556
(O
2)
811
153
2
120
9
135
7
161
51
556
(O
2)
1556
(O
2)
885
1216
1275
1310
Raman Shift (cm-1)
1556
(O
2)
885
1216
1275
1310
1556
(O
2)
885
1216
1275
1310
Raman Shift (cm-1)
Successful field test for explosive
detectionduring dust storm
December 2007 Fort Irwin, Mojave Desert
UH Raman GroupUH Raman Group
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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
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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