Find information on common issues.
Ask questions and find answers from other users.
Suggest a new site feature or improvement.
Check on status of your tickets.
When optical components are reduced to the nanoscale, they exhibit interesting properties that can be harnessed to create new devices. For example, imagine a block of material with thin layers of alternating materials. This creates a periodic arrangement of alternating dielectric constants, forming a "photonic crystal" that is analogous to the electronic crystals used in semiconductor devices. Photonic crystals, along with quantum dots and other devices patterned at the nanoscale, may form the basis for sensors and switches used in computers and telecommunications. More information on Nanophotonics can be found here.
Creating Inflections: DARPA’s Electronics Resurgence Initiative
09 Jan 2019 | | Contributor(s):: William Chappell
Tutorial on Two Photon Lithography Tool
26 Nov 2018 | | Contributor(s):: Mohammad Mahfuzul Kabir, Varun Ajit Kelkar
Two-photon lithography (TPL) is a nano-scale 3-d fabrication technique. TPL depends upon the two-photon polymerization process, whereby two incident photons of light are absorbed by a precursor material leading to polymerization. The smallest feature size (voxel) achievable in a TPL...
Quantum Coherent Transport in Atoms & Electrons
21 Jun 2017 | | Contributor(s):: Yong P. Chen
I will discuss some recent experimental examples from my lab studying quantum coherent transport and interferometry in electrons as well as cold atoms. For example, phase coherent electron transport and interference around a cylinder realized in a nanowire of topological insulator...
Novel Plasmonic Materials and Nanodevices for Integrated Quantum Photonics
19 Jun 2017 | | Contributor(s):: Mikhail Shalaginov
This research focuses on color centers in diamond that share quantum properties with single atoms. These systems promise a path for the realization of practical quantum devices such as nanoscale sensors, single-photon sources, and quantum memories. In particular, we explored an intriguing...
Coherent Nonlinear Optical Propagation Processes in Hyperbolic Metamaterials
08 Jun 2017 | | Contributor(s):: Alexander K. Popov
Coherence and interference play an important role in classic and quantum physics. Processes to be employed can be significantly enhanced and the unwanted ones suppressed through the deliberately tailored constructive and destructed interference at quantum transitions and at nonlinear optical...
08 Jun 2017 | | Contributor(s):: Vladimir M. Shalaev
Opening remarks for the 2017 Purdue Quantum Center workshop.
Soft, Biocompatible Optoelectronic Interfaces to the Brain
08 Jun 2017 | | Contributor(s):: John A. Rogers
In this talk, we will describe foundational concepts in physics and materials science for these types of technologies, in 1D, 2D and 3D architectures. Examples in system level demonstrations include experiments on freely moving animals with ‘cellular-scale’, injectable optofluidic...
What is Markovian and non-Markovian in Quantum Mechanics: New Approaches and Viewpoints
15 May 2017 | | Contributor(s):: Francesco Ciccarello
While in classical physics the notion of what is Markovian or not is well defined, this is not the case when it comes to open quantum systems. What makes a quantum dynamics Markovian or non-Markovian (NM)? Traditional answers to this question involve the celebrated Lindblad master equation (ME)...
ECE 695NS Lecture 5: Bandstructures for Electro-optic Systems
27 Jan 2017 | | Contributor(s):: Peter Bermel
Outline:Bandstructure problemBloch's theoremPhotonic bandstructures1D2D
ECE 695NS Lecture 6: Photonic Bandstructures
Outline:Bandstructure symmetries2D Photonic bandstructuresPhotonic waveguide bandstructuresPhotonic slab bandstructures3D Photonic lattice types + bandstructures
ECE 695NS Lecture 7: Photonic Bandstructure Calculations
Outline:Maxwell eigenproblemMatrix decompositionsReformulating the eigenproblemsIterative eigensolversConjugate gradient solversPreconditionersDavidson solversTargeted solvers
ECE 695NS Lecture 4: Eigenproblems for Electro-optic Systems
25 Jan 2017 | | Contributor(s):: Peter Bermel
Outline:Electrostatics PotentialsSolving Ax = bSpin arraysSolving eigenproblemsBandstructure problemBloch's theoremPhotonic bandstructures1D2D
ECE 695NS Lecture 3: Practical Assessment of Code Performance
Outline:Time ScalingExamplesGeneral performance strategiesComputer architecturesMeasuring code speedReduce strengthMinimize array writesProfiling
ECE 695NS Lecture 2: Computability and NP-hardness
13 Jan 2017 | | Contributor(s):: Peter Bermel
Outline:OverviewDefinitionsComputing MachinesChurch-Turing ThesisPolynomial Time (Class P)Class NPNon-deterministic Turing machinesReducibilityCook-Levin theoremCoping with NP Hardness
ECE 695NS Lecture 1: Introduction and Overview
10 Jan 2017 | | Contributor(s):: Peter Bermel
Outline:MotivationMy Background and ResearchTopics for This ClassGoals for This ClassAssignments
Laser Filtering, Metamaterials, and Commercializing Through the Lens of the Mythical Person Month
09 Jan 2017 | | Contributor(s):: Themos Kallos
In this work we investigate whether optical metamaterials in particular may require more than the typical resources to lead to successful commercialization. We also compare the estimated efforts with other technology commercialization projects of the recent past. ...
Photonic Structures with Topological Robustness: from Classical to Quantum
09 Jan 2017 | | Contributor(s):: Mohammad Hafezi
In this talk, I demonstrate how similar physics can be observed for photons; specifically, how various quantum Hall Hamiltonians can be simulated in an optical platform. I report on the first observation of topological photonic edge state using silicon-on-insulator technology and our recent...
Toward Quantum Enhanced Plasmonic Sensors
14 Dec 2016 | | Contributor(s):: Alberto Marino
In this talk I will describe our work towards this goal based on the interface between quantum states of light, known as twin beams, and plasmonic sensors.
Novel Plasmon Nano-Optical Tweezers for Single Molecule Analysis: Opportunities and Challenges
22 Nov 2016 | | Contributor(s):: justus ndukaife
Active Optical Antennas and Metasurfaces
10 Nov 2016 | | Contributor(s):: Mark Brongersma