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Quantum to Classical Electromagnetic Interactions and Matter
Ale LukaszewMike Fiddy
Predrag Milojkovic
June 15, 2017
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Overview
• Program Managers• Personal interests and motivation (ticking clock)• How ideas can get funding (need a champion)
• DSO’s broad domains/categories• What question is being addressed (Heilmeier)?• High risk but high payoff (no other agency)?• Demanding schedule (tasks and milestones; go/no-go)
• Current and possible/likely future programs………• Mike Fiddy• Predrag Milojkovic• Ale Lukaszew
• Open Discussion
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ScatteringObjects
ScatteredFields
Forward Scattering Problem
Inverse ScatteringProblem
Scattering, imaging, and material design
Two fundamentally linked, VERY HARD problems
Mike Fiddy………….My Interests?
Mike Fiddy: Program Birth and Inheritance!
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DomainsScientific Questions for National Security
Physical and Natural Systems
Human-Machine &
Social Systems
Math &Computational
Systems
Foundations Complexity Design
RadioBio
DETECT
Engineered materials with large nonlinearities (NLM)
Current
Tentative
12 months
ReadyRadioLift Engineered Seismic Materials
Engineered mechatronic materialsDark Matter
Imaging through strongly scattering media (VUES)
RadioMed in 12 months
RadioLoop (Neural)
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DETECT: Can light be measured much more precisely?
Biology
Mapping Basic Science
Communications
LADAR
One example LADAR
“Detect” will 1) Developing fully quantum models for photon transduction2) Building devices to test those models in multiple technologies
Timing Resolution Dark Counts
SOA: 20‐50 ps
What if 100 fs?
spatial resolution of 30 um
The ability to recognize a specific face
SOA: 103‐104 counts/s
What if 1 count/s?
Less dark counts higher SNR
Same performance at 100x distance
Photography
x = c t
Astronomy Medicine
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RadioBio: Is there purposeful signaling?
Conducting structures and media
Ionic switches and diodes
Membrane capacitors
Dynamic lengths
Tunable volumes
Energy sources
Small antennas:high Q = res freq
bandwidth
Biosystems Artificial Systems
Adaptive
Tunable
DNA
Ion channels
Diatom
IR resonator
Tissue
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• RadioBio: Explore EMAG transmit/receive • Scattering: metamaterial-like features• Time varying and disordered structures• Seedlings inform about tissue
Programs
highly scattering, not opaque, far field
highly coupled, subwavelength, near field
• VUES: Imaging through tissue/fog• Random/disordered media
• NLM: Metamolecules/parametric effects• Coupled resonant structures • Dispersion engineering
Existing Programs
Upcoming Programs?
Challenges:• Engineering specific frequency bands with metamaterials• Limited bandwidth achievable with metamaterial structures• Achieving high speed, low power materials for switching,
parametric amplifiers and frequency converters • Limited design tools for engineering new “metamolecules”
Approach/Opportunities:• Exploit resonant scattering between coupled antenna-like
structures (meta-atoms to meta-molecules or clusters)• Develop new models for very near field electromagnetic
interactions and coupling between elements (resonance hybridization)
• Develop new mapping from nonlinear circuits to their equivalent circuits and then equivalent circuit models to material structures/composites
• Exploit dynamics of interactions: high Q vs low Q for fast/slow transitions, Fano resonance and Forster resonance/non-radiative energy transfer for nonlinear response
• Demonstrate frequency difference pumped emission, tunable up and down conversion
Non-Linear Materials
Engineered materials with disruptive nonlinearities
Size
of t
he E
ffect
No
nlin
ear m
etric
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Engineered metamolecules act like coupled resonators
Fiddy/DSO
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Challenges:• No good models exist for scattering from random media• Media of interest have wide range of inhomogeneity scales
in time and space• Only intensity measurements available on focal plane array• Cannot get high-resolution imaging through > 100
scattering lengthsApproach/Opportunities:• Develop new inverse scattering methods and diffusion
models for strongly scattering media• Develop high-order correlation-based image reconstruction,• Exploit computational imaging methods based on random
sampling ( = multiple scattering)• “Learning” a scattering medium and mode sorting, e.g.,
dark channels for passive imaging• Variable/coded coherence length sources for bootstrapping
and active backscatter imaging
VUES: Visibility through Unknown Environments that Scatter Fiddy/DSO
Extending our ability to observe/detect through complex media
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InputLight
No photons reach this point
??
?
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REVEAL
Predrag Milojkovic – Current Programs
EXTREME
Develop a comprehensive theoretical framework and technologies for maximum information extraction from photons in complex scenes coming from both line-of-sight and non-line-of-sight regions
By introducing engineered materials with multi-scale design, EXTREME will create a revolution in optics by enabling new components, functionality, and architectures unconstrained by artificial limitations
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Predrag Milojkovic – Future Program Ideas Novel Imaging and Sensing Concepts
Dust Camera Swarms
Seeing over the horizon
Micro-scale integrated imaging systems, “camera dust,” for distributed sensing
Scattering volume
Plenoptic Projectors
≤100 m
Micro-opticsTransmitterDetector
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Ale Lukaszew’s Interests
Understand and develop new materials, structures and devices incorporating “strongly correlated electrons” – particularly exploiting
topological excitations to create pathways to new paradigms in electronics and/or information transfer