Quantum to Classical Electromagnetic Interactions and ...€¦ · • Develop new models for very near field electromagnetic interactions and coupling between elements (resonance

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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