Path to My CAREER Goal - for NSF CAREER Proposal Writing Workshop Xingwei (Vivian) Wang, Ph.D. Assistant Professor Department of Electrical and Computer Engineering University of Massachusetts Lowell Phone: (978) 934-1981 [email protected]http://faculty.uml.edu/xwang
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Path to My CAREER Goal - for NSF CAREER Proposal Writing Workshop Xingwei (Vivian) Wang, Ph.D. Assistant Professor Department of Electrical and Computer.
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Path to My CAREER Goal- for NSF CAREER Proposal Writing Workshop
Path to My CAREER Goal- for NSF CAREER Proposal Writing Workshop
Xingwei (Vivian) Wang, Ph.D.
Assistant ProfessorDepartment of Electrical and Computer Engineering
decreased from 50 mmHg to 45 mmHg, caused by complete occlusion of coronary vessel
Blast event measurement (Fast response)
18.848 18.850 18.852 18.854 18.856 18.8580.440
0.445
0.450
0.455
0.460
Out
put (
V)
Time (ms)
Optical fiber sensorSampling rate: 2.5 MHz
18.580 18.584 18.588 18.592 18.596 18.6000.00
0.01
0.02
0.03
0.04
0.05
0.06
O
utpu
t (V
)
Time (ms)
Reference sensorSampling rate: 2.5 MHz
Blast wave response comparison. The rise time of our sensor is 0.4 μs. The reference sensor is 12 μs.
Rise time of our sensor is 0.4 μs Rise time of the reference sensor is 12 μs
Relationship between CAREER goal and prior funding support?
Long-term goal: leader in optical sensing
Temperature sensor (NSF)
Biosensor (MLSC)Blood
pressure sensor (CVIP)
CAREER: Ultrasound generator & receiver
Pressure sensor (ARL)
CAREER topic?
CAREER topic?
CAREER Proposal Topic
Coronary intravascular ultrasound (IVUS) for coronary artery disease diagnosis
Application and Marketing
Optical Electrical
Miniature Size? 125 µm diameter Millimeter size
Safety to patients for in-vivo applications?
Yes. Biocompatible material.
Depends on packaging. Electrical wires inside the patient body.
Work in strong electromagnetic environments?
Yes. Immune to EMI.
No. Susceptible to EMI
High Temperature Survivability?
Up to 600 ºC No.
Higher frequency? >30MHz <10MHz
Comparison with current ultrasonic transducer
Principle
The ultrasonic wave is steered by the phased array technique.
Novel Mechanism for Generation and Receiving of Ultrasound on a Single Fiber Using Nanoparticles.
Intellectual Merits• 1) This proposal will be the first attempt to explore
nanoparticles for photoacoustic generation in an ultrasound probe, which is expected to enhance the ultrasound generation efficiency.
• 2) The outcome of this research will open up a new avenue for research on integration of ultrasound generation and receiving on a single optical fiber tip.
• 3) The research will be the first attempt to optically steer the direction of ultrasound generated in an optical fiber which could allow fast 360-degree cross section view and defect detection in any angle.
Relationship between CAREER goal and prior funding support
Long-term goal: leader in optical sensing
Temperature sensor (NSF)
Biosensor (MLSC)Blood
pressure sensor (CVIP)
CAREER: Ultrasound generator & receiver
Pressure sensor (ARL)
Where Am I Now?• Grants:
– NSF CAREER Award; $400K– Massachusetts Life Sciences Center New Investigator