Webinar Programs

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Upcoming Live Webcasts
Collapse A Year in Visual Optics: Understanding the Anterior Human Eye

This webinar we will provide background for the analysis and understanding of the anterior human eye, cornea and lens, that not only provides refraction and high transparency that allow us to see the world around us but also is critical as a rigid yet transparent window to the inner eye of immeasurable value when diagnosing a number of eye and retinal conditions that may deteriorate vision if left untreated.

  • The refractive properties of the cornea, the foremost element of the eye, will be covered and examples will be given of how the cornea can be imaged and analyzed. Improved imaging and analysis is crucial for eye diagnostics and for accurate refractive surgery.
  • The mechanical properties of the eye and, in particular, the cornea will be discussed. The optical and mechanical properties of the cornea are determined by layered collagen fibrils. Only though detailed mechanical modeling can its structure and properties be understood.
  • The crystalline eye lens has a graded refractive index profile and ensures vision and accommodation. Scattering may hinder clear vision and require implantation of an intraocular lens. A number of lenses are available that mimic the natural crystalline lens to provide accurate vision. The optics and opportunities of intraocular lenses will be discussed. 


What You Will Learn/Seminar Objectives
  • Methods used to image and analyze the cornea of the human eye
  • Methods that allow detailed mechanical analysis of the cornea and its parts
  • Analysis of vision and the role of the crystalline lens and intraocular lenses

Who Should Attend
  • Anyone interested in learning about the eye, the mechanics and the optical properties of the anterior eye and their importance for vision as well as ophthalmic imaging.
  • Students and researchers with an interest in ophthalmic technologies and the eye.
  • Ophthalmic industry employees and clinicians who wish to increase their understanding of the human eye and the technical possibilities currently available to explore the cornea and the crystalline lens.

Level
  • The webinar will be targeted for beginners and intermediate researchers towards the specialists.

Formats Available: Streaming
Original Seminar Date: January 15, 2015
On-Demand Release Date: Available Now
MORE INFOMORE INFO A Year in Visual Optics: Understanding the Anterior Human Eye
Collapse Adaptive Optics: Latest Results in Vision Science, Microscopy and Astronomy

Adaptive optics (AO) allows user to correct aberration and to recover high quality images. The webinar will cover three applications of AO: vision science, microscopy, and astronomy. 3 AO key opinions leaders will share some of their latest results.

 

 What You Will Learn/Seminar Objectives

  • Implementation of an AO system for different application
  • Advice from AO state-of-the-art experts.
  • Results/examples in vision science, microscopy and astronomy.

 

Who Should Attend

  • Researcher and Engineers interested in Adaptive Optics
  • Students studying Adaptive Optics
  • Individuals want to correct aberrations inside or outside optical systems
  • Individuals that work in the following areas: Vision Science, Microscopy or Astronomy

 

Level

The webinar as intermediate level. Basic knowledge of adaptive optics would be helpful.

 

Formats Available: Live Webcast
Original Seminar Date: March 12, 2015
On-Demand Release Date: Available Now
MORE INFOMORE INFO Adaptive Optics: Latest Results in Vision Science, Microscopy and Astronomy
Collapse Nanophotonics in the Year of Light

In this webinar, an overview of The Optical Society’s Nanophotonics Technical Group and several exciting nanophotonics research will be presented by the Chair and the Executive Committee members of the group. The webinar will include sequential sessions; descriptions of the individual sessions are as follows.

 

1. In nanophotonics we create material-systems, which are structured at length-scales smaller than the wavelength of light. When light propagates inside such effective materials numerous novel and exciting physics phenomena emerge including thresholdless lasing, atto-joule per bit efficient modulators, and selective light scattering. However, in order to make use of these opportunities for real-world applications (e.g. optical data links, transparent displays), one has to have the ability to integrate nanophotonic structures into functional devices in a smart way. In this talk, I will present some of the recent theoretical and experimental progress in exploring these opportunities, as well as certain novel physical phenomena that emerge in this process.

 

2. Photonic nanostructures allow for the realization of new devices with enhanced properties. The interaction of light in the nanoscale is very effective, making photonic devices more efficient and opening new applications. In the talk I will present a near-thresholdless microlaser emitting at room temperature in the near infrared (1300nm) made out of a combination of quantum dots and photonic crystals. The measured performance of the laser gives a very high efficiency of 85%, meaning that 85% of the photons generated in the microlaser are lasing photons, and a threshold power around 860 nW.  This kind of devices paves the way for the future high-efficient operation of microlasers able to save a high amount of driving power.

 

3. Advancement in nanotechnology has facilitated the generation and perturbation of gradients fields – optical, electric and magnetic – on a level that was previously inaccessible. Gradient fields are widely used for the manipulation of micro- and nanoscale objects. A sharp metallic tip creates strong non-uniform electrical field gradient when coupled with a second electrode - a phenomenon termed as dielectrophoresis (DEP). In this talk, I will present a template stripping nanofabrication technique to produce isolated gold pyramidal tips attached to metallic wires. When coupled with an electrode, the pyramidal tip functions as a three-dimensional DEP trap to manipulate and concentrate carbon nanotubes, for subsequent detection using far-field Raman spectroscopy. Along the lines of potential applications, I will present a RHK shear-force atomic force microscope capable of integrating these nanopyramids.

 

4. Nano technology helps us in many ways.  One of them is to improve the performance of devices in terms of power dissipation and size.  These two properties are essential for photonic integration.  In this short talk two examples of such improvements will be presented.  One example is ultra-low drive voltage electro-optic modulators using thin compound semiconductor epilayers removed from their growth substrates.  This approach allows for sub-micron and very uniform electrode gaps and demonstrated Mach-Zehnder intensity modulators with 0.2 V V.  Wide bandwidth versions of these devices have 0.77 V V with bandwidth exceeding 67 GHz.  The other example is ring resonators utilizing conventional optical waveguides, total internal reflection mirrors and sub-micron deeply etched beam splitters.  These devices have free spectral range of 14.5 nm and 10 dB extinction ratio tuning with less than 2 mA of current.

 

5. Using nano-scale structures to tailor light-guiding properties of integrated photonic devices opens new opportunities to extend the parameter space of conventional optical components and enable unprecedented system performance. In this talk, I will present some recent advances in dispersion engineering of integrated waveguides based on a nano-scale slot structure. This enables us to produce an extremely flat and low dispersion over a spectral band of one octave, facilitating ultra-broadband phase matching for nonlinear applications. Octave-spanning on-chip light sources, such as super-continuum generation and frequency comb generation, are expected. This dispersion approach is also shown to be widely applicable to various materials and wavelength ranges.

 

6. One of the exciting opportunities in manipulating light is the use of nanostructures. In this short talk, I will present an overview of our work on high-index contrast nanostructures to control light at deep-subwavelength scales in photonic devices. As a specific example, I focus on waveguide array devices. I start by describing experimental work on the creation of ultra-compact photonic devices for highly-integrated optoelectronic systems based on aperiodic nanoslit arrays. Next, I formulate a numerical approach for designing large-scale waveguide arrays that perform ideal waveguide lensing. Finally, I highlight the unusual optical capabilities of nano-scale metal-dielectric-metal waveguide arrays, including deep-subwavelength focusing and imaging. I hope this illustrates the rich set of opportunities for nano-scale optics research at the interface between fundamental physics and applied photonic device design.

 

What You Will Learn/Seminar Objectives

 

  • Overview of The Optical Society’s Nanophtonics Technical Group – what they do, and how you can involve.
  • Highlights of exciting research examples from the world of nanophotonics

  

Who Should Attend

 

  • Graduate students interested in the field of nanophotonics, material science, scanning probe microscopy, plasmonics
  • Undergraduates with an interest in nanotechnology and nanoscience
  • Optics and photonics company representatives such as R&D affiliated personnel
  • STEM educators with an aspiration for nanotechnology and optics

  

Level

The level of the webinar is intermediate. The basic concepts will be explained. However, a minimum knowledge of Optics, Nanophotonics, and Spectroscopy is assumed.

 

Formats Available: Live Webcast
Original Seminar Date: March 16, 2015
On-Demand Release Date: Available Now
MORE INFOMORE INFO Nanophotonics in the Year of Light
On-Demand Programs Date Available
Nanophotonics in the Year of Light Mar 04, 2015
Adaptive Optics: Latest Results in Vision Science, Microscopy and Astronomy Feb 18, 2015
A Year in Visual Optics: Understanding the Anterior Human Eye Dec 17, 2014
Light on a Chip: The Future of Photonic Integration Dec 15, 2014
Rare-earth doped amplifiers integration onto nanophotonics platforms Dec 10, 2014
Integrated Photonics Institute for Manufacturing Innovation Q & A Nov 26, 2014
Understanding Cloud Services, Market & Technology Oct 29, 2014
The Freedom of Freeforms: Current Optics Manufacturing Methods Allow for Freeform Optical Designs Oct 17, 2014
Polarization Related Emulation and Testing in Coherent Optical Communication Systems Sep 04, 2014
Visualizing Catalytic Reactions and Light-Matter Interactions with Nanometer-Scale Resolution Jul 23, 2014
National Network for Manufacturing Innovation (NNMI) Background Information & Information on DOD RFI Jun 18, 2014
Department of Energy's SBIR/STTR Program Overview Jun 04, 2014
Carrier SDN for Multi-layer Control: Savings and Services May 08, 2014
Surface Slope Tolerances Nov 15, 2013
A look into the world of Nonimaging Optics Jul 11, 2013
Rugged Micro-Optic Packaging for Extreme Environments Jan 17, 2013
What's Wrong with My Image? Nov 29, 2012
Coherent Super-Channels Nov 07, 2012
Optical Design in the Infrared: The World has Changed - New Materials, Methods, and Solutions to Address New Challenges Dec 23, 2011
Introduction to Optical Glasses: Characteristics, Applications and Customizations Sep 20, 2011