NAE Meeting Speakers

Keynote Speakers, Abstracts and Biographies 

Charles A. Beichman

Astronomer
Executive Director, NASA ExoPlanet Science Institute
Charles.A.Beichman@jpl.nasa.govchas@ipac.caltech.edu

A Challenge for 21st Century Telescopes: Finding and Characterizing Earth 2.0

Abstract:

The search for other worlds and life beyond the Earth has challenged humanity for over 2,000 years. It is only in the past 25 years, however, that we have been able to address this question with the tools of modern science and technology. I will discuss our progress to date which includes the 2019 Nobel Prize in Physics for the discovery of the first exoplanet in 1995, the identification of over 4,000 exoplanets, and our dramatic ambitions for future observatories on the ground and in space.

Scheduled for launch in 2021, the James Webb Space Telescope (JWST) will use direct imaging to search for planets smaller than Jupiter on distant orbits around young stars and the transit technique to provide a detailed characterization of the atmospheres of planets ranging in size from Jupiters to super Earths.

A subsequent generation of telescopes will be needed to search for signs of life on Earth analog planets. From the ground, direct imaging with Extremely Large Telescopes (ELTs) will detect and characterize rocky planets in the habitable zones of nearby cool M stars while diffraction-limited, single-mode-fiber spectrometers (R~150,000) will probe elemental and molecular abundances, atmospheric structure and even weather patterns on other worlds. Space-based 6-15 m telescopes equipped with coronagraphs and/or external occulters (starshades) have been proposed as NASA’s next flagship observatory to find for signs of life on other Earths orbiting in the habitable zones of stars like our own sun.

Some of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.

Biography:

Dr. Charles Beichman is the Executive Director of the NASA Exoplanet Science Institute (NExScI) at Caltech, NASA’s Center for exo-planet research. In addition to overseeing the development of the science operations center for Space Interferometer Mission (SIM; now on hold) at the NExScI, he leads a SIM Key Project to find planets orbiting young stars. Dr. Beichman has been deeply involved in the search for evidence of planetary systems using first IRAS and now Spitzer. Most recently he and his collaborators have published numerous papers on Kuiper Belt and asteroid analogs surrounding nearby solar type stars based on Spitzer results. One spectacular system, HD 69830, shows emission due to sub-micron sized particles some 1,400 times brighter than our own zodiacal cloud and which appears to be closely associated with a triple planetary system discovered via RV measurements. With Mark Swain and collaborators, he adapted analysis tools used to identify weak debris disks with the Spitzer spectrometer to extract the spectrum of the planet HD209458b during a secondary transit.

For the past 10 years Dr. Beichman has been closely associated with and helped to formulate NASA’s program to search for planets around other stars, serving as Chair of the Science Working Group for the Terrestrial Planet Finder (TPF) and authoring numerous articles and reports on TPF and the search for terrestrial and ultimately habitable planets. Before taking up his role at the MSC he was as Chief Scientist for JPL’s Astrophysics Directorate. Dr. Beichman also was Director of the Infrared Processing and Analysis Center (IPAC) for almost a decade. At IPAC he worked on the Infrared Satellite Astronomy Satellite (IRAS) as Deputy and later Project Scientist. After IRAS he led the initial software development for the 2 Micron All Sky Survey (2MASS) and was involved as a science team member in all aspects of the project, oversaw NASA’s science center support for the Infrared Space Observatory in collaboration with ESA, and initiated the development of the Spitzer Science Center.

He has served on numerous advisory groups, most recently NASA’s SSAC and the Astronomy/Origins Subcommittee. In 1988-1990 he was member and executive secretary of the NRC Astronomy and Astrophysics Survey Committee (the Bahcall Report).

 

Elizabeth Hillman, PhD

Professor of Biomedical Engineering and Radiology
Columbia University
212-853-1098
Elizabeth.hillman@columbia.edu

High-speed Optical Imaging of Biology at the Speed of Life

Abstract:

The microscopes of your childhood had an eyepiece or two, a light and some knobs to turn, and you used them to look at thinly sliced (yet fascinating) dead things. However, microscopy has been transformed in recent years thanks to incredible advances in all areas of optics, from lasers to high-speed cameras, as well as our ability to handle and analyze large and high-dimensional digital datasets. The way that we study living things has also changed dramatically thanks to new dyes and fluorescent proteins that enable exquisite, genetically precise labeling of not just the structure, but the function of living cells. My research program leverages these rich opportunities, and most recently recognized that an important frontier not met by earlier microscopes was the ability to image 3D samples at very high speeds. To address this need, we devised a method called ‘Swept confocally aligned planar excitation’ (SCAPE) microscopy that is capable of generating cellular-level images in 3D that are so fast that we can watch the heart of a developing fish beat in real time, or track the firing patterns of neurons along the body of a fruit fly larva as it crawls along. A key feature of our approach is the system’s use of oblique light sheet illumination, which yields much higher signals and lower photodamage compared to traditional point-scanning methods, while our single, stationary objective lens makes the system accessible for a wide range of applications. Our use of a galvanometer mirror as the system’s only moving part makes the design simple, stable and cost-effective. Although SCAPE is now licensed to Leica Microsystems for commercial development, our lab has continued developing and extending the approach, while also working closely with a wide range of collaborators to assist them with building their own SCAPE systems, and to support new studies of biological phenomena that couldn’t be seen before. I will discuss this work along with ongoing projects to leverage optical methods to reveal fundamentally new aspects of dynamic, living systems.

Biography:

Elizabeth Hillman is a Professor of Biomedical Engineering and Radiology at Columbia University and a member of the Mortimer B. Zuckerman Mind Brain Behavior Institute and Kavli Institute for Brain Science at Columbia. Hillman received her undergraduate degree in Physics and Ph.D. in Medical Physics and Bioengineering at University College London and completed post-doctoral training at Massachusetts General Hospital/Harvard Medical School. In 2006, Hillman moved to Columbia University, founding the Laboratory for Functional Optical Imaging.

Hillman’s research program focuses on the development and use of novel optical imaging and microscopy technologies to capture functional dynamics of living systems. Most recently, she developed swept confocally aligned planar excitation (SCAPE) microscopy, a technique capable of very high speed volumetric imaging of neural activity in behaving organisms such as adult and larval Drosophila, zebrafish, C. elegans and the rodent brain. Hillman’s research program also includes exploring the physiological mechanisms linking neural activity and the modulation of blood flow in the brain, as the basis for signals detected by functional magnetic resonance imaging (fMRI), as well as studying the dynamical properties of real-time brain activity across species.

Hillman is a fellow of the Optical Society of America (OSA), the society of photo-optical instrumentation (SPIE) and the American Institute for Medical and Biological Engineering (AIMBE). She received the 2011 OSA Adolf Lomb Medal for contributions to optics at a young age, the 2018 SPIE Biophotonics Technology Innovator Award and early career awards from the Wallace Coulter Foundation, National Science Foundation and Human Frontier Science Program.

 

Speakers

Jennifer Barton

Professor, Biomedical Engineering; Professor, Electrical and Computer Engineering; Professor, Optical Sciences; Professor, Agricultural-Biosystems Engineering; Director, BIO5 Institute; Professor, Medical Imaging
University of Arizona
520-621-3512
barton@email.arizona.edu

Advanced Endoscopic Imaging for Early Cancer Detection

Abstract:

Optical methods of investigating tissue have the advantages of high sensitivity, high resolution, relatively low cost, and ability to sense both structural and biochemical characteristics of tissue. Their limited penetration depth can be mitigated by endoscopic delivery using small-diameter optics. Optical techniques hold the promise of directing, minimizing, or perhaps even eliminating traditional destructive biopsy by providing diagnostic information in a harmless manner.

Two complimentary optical modalities hold excellent promise for early cancer detection: optical coherence tomography (OCT) and fluorescence spectroscopy (FS). OCT provides micron-scale cross-sectional imaging up about 1 mm deep in scattering tissue, whereas FS provides information about the concentration and distribution of fluorescent biomolecules. When packaged into endoscopes ranging from 0.3 – 4 mm in diameter, the colon, ovary and fallopian tubes (among other organs) can be accessed. Intriguing images of early stage cancer have been obtained with OCT, while FS has provided information both on the metabolic activity of the tissue and has resolved possible confounders in OCT.

Biography:

Jennifer Barton received the BS and MS degrees in electrical engineering from the University of Texas at Austin and University of California Irvine, respectively. She worked for McDonnell Douglas (now Boeing) on the Space Station program before returning to The University of Texas at Austin to obtain the Ph.D. in Biomedical Engineering in 1998. She is currently Professor of Biomedical Engineering and Optical Sciences. She has served as department head of Biomedical Engineering, Associate and Interim Vice President for Research, and is currently Director of the BIO5 Institute, a collaborative research institute dedicated to solving complex biology-based problems affecting humanity.

Barton develops miniature endoscopes that combine multiple optical imaging techniques, particularly optical coherence tomography and fluorescence spectroscopy. She evaluates the suitability of these endoscopic techniques for detecting early cancer development in patients and pre-clinical models. She has a particular interest in the early detection of ovarian cancer, the most deadly gynecological malignancy. Additionally, her research into light-tissue interaction and dynamic optical properties of blood laid the groundwork for a novel therapeutic laser to treat disorders of the skin’s blood vessels. She has published over 120 peer-reviewed journal papers in these research areas. She is a fellow of SPIE- the International Optics Society, and a fellow of the American Institute for Medical and Biological Engineering.

Ewan S. Douglas

Assistant Professor, Astronomy; Asisstant Astronomer, Steward Observatory
520-621-2288
douglase@email.arizona.edu

Technology Demonstrations for Exoplanet Imaging with Space Coronagraphy 

Abstract:

High-contrast imaging above the turbulent atmosphere is expected to allow directly observation of Earthlike exoplanets in reflected light but first must overcome many technical hurdles. This talk will summarize the needed technological advances, the history of  technology development for exoplanet imaging, the technologies that will be demonstrated by the NASA WFIRST mission's Coronagraphic Instrument expected to launch in the coming decade, and the remaining technologies needed to enable direct spectroscopy of Earthlike planets in the future.

Biography:

Ewan Douglas is an Assistant Professor of Astronomy at the University of Arizona Steward Observatory. Dr. Douglas' research focuses on space telescopes and instrumentation, wavefront sensing and control, and high-contrast imaging of extrasolar planets and debris disks. Ewan completed a postdoctoral appointment at the Massachusetts Institute of Technology, received master's and doctoral degrees in astronomy from Boston University, and a bachelor's degree in physics from Tufts University.

Olivier Guyon

Associate Astronomer Steward Observatory, Associate Professor Optical Sciences
University of Arizona
520-621-2288
guyon@naoj.org

Adaptive Optics & the Exoplanet Imaging Challenge
 
Abstract:

Planets outnumber stars, and many are potentially habitable. Directly catching light from these other worlds is key to probing for life outside our solar system - yet, it remains a formidable challenge. While the upcoming generation of large ground and space telescopes will offer the collecting necessary for spectroscopic analysis of nearby Earth-like planets, the much brighter starlight must first be finely controlled and suppressed. The level of starlight suppression required for these observations will be achievable with future large telescopes thanks to recent advances in optics and related technologies. These include high precision optics fabrication for components that cancel starlight, low-noise fast detectors for measuring optical aberrations in real-time, then compensated with deformable mirrors, and high performance computing. These components are integrated together in an adaptive optics system optimized for high contrast imaging.

Biography:

Dr. Olivier Guyon is a Associate Astronomer and Associate Professor in Optical Sciences at the University of Arizona, and is the principal investigator of the Subaru Coronagraphic Extreme Adaptive Optics instrument for the Subaru Telescope operated by the National Astronomical Observatory of Japan. His research focuses on exoplanet imaging techniques, including coronagraphy, adaptive optics, and image processing.

Khanh Kieu

Associate Professor, Wyant College of Optical Sciences
University of Arizona
520-621-2382
kkieu@optics.arizona.edu

Development of Compact Ultrafast Fiber Lasers for Nonlinear Optical Imaging

Abstract:

Mode-locked lasers which generate femtosecond or picosecond pulses are important tools in modern scientific research and technological applications. These lasers are notorious for their high cost, bulkiness, and complexity in day-to-day operation. I will review the most interesting compact mode-locked fiber laser systems that we have developed. In addition, I will discuss the application of these lasers in multiphoton imaging that has enabled label free determination of the stages of dysplasia in Barrett’s esophagus and pancreatic cancer margin detection.

Biography:

Khanh Kieu is a tenured Associate Professor at the College of Optical Sciences, The University of Arizona. He was born and raised in Vietnam. He went to college in St. Petersburg (Russia) in 1997. There, he studied optics with a concentration in laser physics and laser technology from the first year of his undergraduate studies. His department, The Department of Laser-based technologies, was founded in 1964 just a few years after the laser was invented. Khanh Kieu received a B.S. with honor (red diploma) in Applied Physics in 2002. His thesis work was in laser cleaning. In 2004, He received a M.S. with honor in Laser Technologies from the same institution for his research work in laser fabrication of micro-optical elements. He moved to the USA in 2004 for his Ph.D. studies. Thereafter, he received a Ph.D. in Optical Sciences in 2007 from the College of Optical Sciences, The University of Arizona. During his Ph.D. studies, he worked with Prof. Masud Mansuripur to develop new fiber-based devices. In 2007, he joined Prof. Frank Wise’s group at Cornell University to do research in ultrafast fiber lasers. In 2009, he came back to the College of Optical Sciences, University of Arizona, as a research faculty. Dr. Kieu started his independent research group in September 2012. He is the founder of Kphotonics, LLC – a startup company supplying compact, low cost ultrafast fiber lasers for research and education.

Jared Males

Assistant Astronomer, Steward Observatory
520-621-2288
jrmales@email.arizona.edu

Searching for Life with Ground-based Telescopes

Abstract:

The coming era of 25 to 40 meter ground-based telescopes promises many breakthroughs in our knowledge of the Universe.  One of the most exciting will come from the characterization of nearby terrestrial planets, and the search for signs of life on them.  To accomplish this, some technical challenges need to be solved in the area of high contrast imaging and precision wavefront control.  Several current generation high contrast imagers are engaged in developing and testing solutions to these challenges.  We will discuss one of them, MagAO-X, an "extreme" adaptive optics (ExAO) system for the 6.5 m Magellan Clay telescope in Chile.  When not on the telescope, MagAO-X returns to the lab in Steward Observatory at the University of Arizona, to support development and testing.  We will describe some of the key areas of research for MagAO-X.  This includes initial testing of phasing strategies for the under construction 25 m Giant Magellan Telescope (GMT).  Finally, we will discuss plans for a follow-on ExAO instrument for the GMT.  The primary goal of this instrument will be to search for and characterize life on the nearest terrestrial worlds.  

Biography:

Dr. Jared Males is an Assistant Astronomer in the University of Arizona's Steward Observatory.  He received his PhD in Astronomy from the University of Arizona in 2013, and was a NASA Sagan Fellow there from 2013-2016, after which he joined the faculty of Steward Observatory.  His research is focused on searching for life on exoplanets, both from the ground and in space.  He is the principal investigator of the NSF/MRI funded MagAO-X extreme adaptive optics system, a high contrast, coronagraphic exoplanet imaging instrument for the 6.5 m Magellan Clay Telescope in Chile.

Barbara Smith

Assistant Professor, Biological and Health Systems Engineering
Arizona State University
480-727-8988
barbarasmith@asu.edu

Title TBD

Abstract:

Biography:

Barbara Smith joined Arizona State University’s School of Biological and Health Systems Engineering as an assistant faculty in January 2015. The Smith Laboratory focuses on developing novel photoacoustic imaging technologies and investigating multiomic biomarkers for applications in women’s health and mental illness. Recent work in her lab has led to the publication of a Featured Article in Applied Physics Letters and the submission of seven patents. Since joining ASU, Smith has been awarded the Centennial Professorship Award, Arizona Biomedical Research Consortium Early Stage Investigator Award, Women and Philanthropy Award, and a National Science Foundation ICorps Award.