“We are like tenant farmers chopping down the fence around our house for fuel when we should be using Nature's inexhaustible sources of energy — sun, wind Nature s inexhaustible sources of energy sun, wind and tide. ... I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait until oil and coal run out before we tackle that ” wait until oil and coal run out before we tackle that. --Thomas Edison, in conversation with Henry Ford and Harvey Firestone (1931) (1931); Uncommon Friends : Life with Thomas Edison, Henry Ford, Harvey Firestone, Alexis Carrel & Charles Lindbergh (1987) by James Newton, p. 31
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“We are like tenant farmers chopping down the fence around our house for fuel when we should be using Nature's inexhaustible sources of energy — sun, windNature s inexhaustible sources of energy sun, wind and tide. ... I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait until oil and coal run out before we tackle that ”wait until oil and coal run out before we tackle that.
--Thomas Edison, in conversation with Henry Ford and Harvey Firestone (1931)(1931);
Uncommon Friends : Life with Thomas Edison, Henry Ford, Harvey Firestone, Alexis Carrel & Charles Lindbergh (1987) by James Newton, p. , g ( ) y , p31
h d lEnhanced Sensing Utilizing Raman SpectroscopyRaman Spectroscopy
Carl C. Wamser SymposiumP l d S U i iPortland State University
21 Sept 2012
Invisible ExplosivesInvisible Explosives
Invisible ExplosivesInvisible Explosives
Invisible ExplosivesInvisible Explosives
Triacetone Triperoxide (TATP) Hexamethylene triperoxide diamine (HMTD)Triacetone Triperoxide (TATP) Hexamethylene triperoxide diamine (HMTD)
7 July 2005London
4 Bombs ‐ TATP3 h d d3 on the underground1 on a double‐decker bus
52 victims killed + 4 suicide bombers
‐‐underwear bomber
20 Nov 2010Escondido, CA
9 pounds HMTD
Also found PETN
‐‐Millennium bomber, 2006 trans‐Atlantic
Invisible ExplosivesInvisible Explosives
Standoff DetectionStandoff Detection
Technique applicable at distance
Technique able to perform unambiguous identification
Instrument field deployable
Standoff DetectionStandoff Detection
Improving the Current System
Shift to resonance Raman
Utilize SERS
Improving the Current SystemUV Resonance Raman
ent
(cm
-1M
-1)
nctio
n C
oeffi
cie
Ext
i
Improving the Current SystemUV Resonance Raman
TATP228 nm
TATP
514 nm
Raman Shift (cm‐1)
Improving the Current SystemUV Resonance Raman
HMTD228 nm
HMTD
514 nm
Raman Shift (cm‐1)
Improving the Current SystemUV Resonance Raman
HMTDHMTD
rvals
ute Inter
–1 Min
Time
40 μW@ 228 nm@
Improving the Current SystemSurface Enhanced Raman
TEM DLS
Improving the Current SystemSurface Enhanced Raman
Raman Shift (cm‐1)
How do we increase the binding?
Improving the Current SystemSurface Enhanced Raman
Improving the Current SystemSurface Enhanced Raman
Gaussian 09 – B3LYP
Improving the Current SystemAdded Bonuses
UVRR able to work in daylight‐no need for gating‐no need for gating‐no need for background subtraction
Limited only by library‐chemical‐biological‐narcotics
AcknowledgmentsAcknowledgments
• Professor Judy Kimo esso Judy• Professor Michael Tauber• Dr. Keith MonsonDr. Keith Monson• Kim Group
This project was supported by a grant from theThis project was supported by a grant from the Intelligence Community Postdoctoral Research Fellowship Program though funding from the Office of the Director of National IntelligenceOffice of the Director of National Intelligence
Facts about Carl C. WamserFacts about Carl C. Wamser
• PatientPatient• Compassionate & Kind
i• Passionate• Dedicated• Diligent• HumbleHumble• Sometimes, he would beat us….
Thank you Carly
NN
N N
N
tetraphenyl‐CARL‐phyrin
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