Colloquium

The OSC Colloquium series is a dynamic forum for the interchange of ideas, techniques and research in all areas of optics, wherein academic scholars and industry leaders lead discussions about groundbreaking research and open the floor to questions and comments. Students, faculty members, members of the optics community and the public are all invited to attend.

Colloquium is held on Thursday in Meinel 307 each week during the academic year.

Fall 2021 & Spring 2022 Lectures

  • Thursday, April 28, 2022 - 3:30pm - 5:00pm
    Title: A Coherent Connection: Optical Frequency Combs

    Optical frequency combs based on mode-locked lasers have become well known thanks to their revolutionary impact on the fields of spectroscopy and metrology. More recently, less traditional comb generation techniques, including nano-photonic and electro-optic methods, have been leveraged to...

  • Thursday, April 21, 2022 - 3:30pm - 5:00pm
    Title: “Quantum Computing with Neutral Atoms” Event Video: A public posting of this presentation has not been approved.

    One of the earliest proposals for scalable quantum computers was optically trapped, ultracold neutral atoms.  Like their more famous cousins, atomic ions, qubits encoded in the energy levels of neutral atoms are all identical, can have long coherence times, and can be controlled with a...

  • Thursday, April 14, 2022 - 3:30pm - 5:00pm
    Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archiv

    The cornea is the main refractive element of the eye. Its shape, crucial to visual acuity, is governed by the biomechanics of its unique and complex structure. Access to technologies capable of biomechanical screening, accompanied by a comprehensive understanding of corneal biomechanics and the...

  • Thursday, April 7, 2022 - 3:30pm - 5:00pm

    Understanding and ultimately controlling the properties of matter, from molecular to quantum systems, requires imaging the elementary excitations on their natural time and length scales. To achieve this goal we developed scanning probe microscopy with ultrafast and shaped laser pulse excitation...

  • Tuesday, April 5, 2022 - 3:30pm

    An exciting frontier in quantum information science is the creation and manipulation of quantum systems that are built and controlled quanta by quanta. In this context, there is active research worldwide to achieve strong and coherent coupling between light and matter as the building block of...

  • Thursday, March 31, 2022 - 3:30pm - 5:00pm

    Our conceptual pictures and theoretical formulations regarding the dynamics of electrons in crystalline materials, and the related quasiparticles of holes and excitons, are formulated in momentum space. For example, when we think about how a semiconductor absorbs or emits light, we draw the band...

  • Thursday, March 24, 2022 - 3:30pm - 5:00pm

    An exciting frontier in quantum information science is the creation and manipulation of quantum systems that are built and controlled quanta by quanta. In this context, there is active research worldwide to achieve strong and coherent coupling between light and matter as the building block of...

  • Thursday, March 17, 2022 - 3:30pm - 5:00pm
    Title: Organic small molecule integrated photonic devices

    The initial, landmark integrated photonic devices relied on silicon and III-V materials, and recent advances in material fabrication and deposition methods have enabled a plethora of new technologies based on materials with higher optical nonlinearities, including 2D materials and organic...

  • Tuesday, March 15, 2022 - 3:30pm - 5:00pm

    Polarization offers an exciting future in Imaging Science and Optical Engineering because system performance can often be substantially improved when polarization effects are exploited and polarization-sensitive measurements are utilized. Formulating tractable system-performance optimizations to...

  • Friday, March 4, 2022 - 11:30am - 12:30pm
    Title: “Robust Nonlinear and Topological Quantum Photonics” A recording of this talk is not available publicly. 

    In this talk we will discuss how to engineer the dispersion relation of photonic platforms to provide robust propagation of classical and quantum states of light.

    In the first part of this talk, we will unveil how to leverage the interaction of nonlinearity with higher orders of...

  • Thursday, March 3, 2022 - 3:30pm - 5:00pm

    Continuing the Search for Equity: Advancing the Need for More Representation of Black Scientists in Optics and Photonics

    Michael J. Williams, Ph.D.
    OPTICA Ambassador 2021
    Applications Specialist, Boston Electronics

    The events of 2020 have forced us all to confront the...

  • Thursday, February 24, 2022 - 3:30pm - 5:00pm
    Title: "Advancing Infrared Vision with New Materials"

    Naval operations in visually-degraded environments requires new approaches to the design of infrared electro-optic imagers, with particular emphasis on economical materials and/or architectures that potentiate room temperature operation with access to alternative sensing modalities and/or...

  • Thursday, February 17, 2022 - 3:30pm - 5:00pm

    Trapped-ions are a leading candidate for the implementation of quantum computers and other quantum applications including atomic sensors and secure communications. In trapped-ion systems, most of the control operations performed on the ions are implemented using very precise light fields. As the...

  • Thursday, February 3, 2022 - 3:30pm - 5:00pm
    Title: Optics of Virtual Reality Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive

    This presentation will give an overview of Reality Labs (RL) Research, Meta and introduce many of the key elements necessary to build a successful Augmented Reality (AR) or Virtual Reality (VR) system, focusing on optics and displays. I will present recent advances at RL Research in near-to-eye...

  • Thursday, January 20, 2022 - 3:30pm - 5:00pm
    Title: “Imaging Through Optical Fibers for Hair-Thin Endo-Microscopes”

    Optical endoscopes are widely used in medicine to identify early-stage cancers in accessible parts of the body, such as the gastrointestinal tract, enabling early treatment and better patient outcomes. However, the next generation of endoscopes must overcome two key challenges to have a truly...

  • Thursday, December 2, 2021 - 3:30pm - 5:00pm
    Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive

    Differential phase contrast imaging can provide direct access to electron density, and dark field (or small angle scatter) contrast enables access to surface and texture details significantly below the detector resolution. These new imaging capabilities...

  • Thursday, November 18, 2021 - 3:30pm - 5:00pm
    OSC Colloquium Lecture presented by Dr. Michael Raymer Topic:  Quantum Enhanced Telescopy: Very Long Baseline Interferometric Imaging using Single-Photon States as a Nonlocal Oscillator Host:  Dalziel Wilson Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive

    Recent proposals suggest that distributed single photons serving as a ‘nonlocal oscillator’ can outperform weak coherent states as a phase reference for long-baseline interferometric imaging (VLBI) of weak sources. [1, 2] Such nonlocal quantum states distributed between...

  • Tuesday, November 9, 2021 - 3:30pm - 5:00pm
    Colloquium Lecture by Dr. Kang-Kuen Ni Topic:  Building single molecules atom-by-atom in optical tweezers Host:  Dalziel Wilson   Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive

    Optical tweezers, made from tightly focused laser beams are versatile tools to manipulate small particles for studies in physics, chemistry, and biology.   In this talk I will focus on an application where we use tweezers to grab single atoms from a laser-cooled ensemble and assemble...

  • Thursday, November 4, 2021 - 3:30pm - 5:00pm
    Title: The Mysterious Lives of Speckles: Defining the fundamental limits of ground-based coronagraph performance and achieving them with MagAO-X

    Our ability to image extrasolar planets is limited by the spatially and temporally correlated noise source called "speckles".  Speckles are copies of the point spread function (PSF) and so mimic planet signals in the spatial domain, and correlations in the time domain cause them...

  • Thursday, October 28, 2021 - 3:45pm - 5:00pm
    Title: Current and Future NASA Space Telescopes Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive

    Astronomy is arguably in a golden age, where current and future NASA space telescopes are expected to contribute to this rapid growth in understanding of our universe.   A summary of our current space assets will be given, as well as an update on the status of the James Webb Space...

  • Thursday, October 21, 2021 - 3:45pm - 5:00pm

    In recent years, acoustic phonons have emerged as a powerful resource for signal processing, precision metrology, and quantum information processing. In this talk, we explore methods for controlling and shaping the interactions between photons and acoustic phonons as the basis for both classical...

  • Thursday, October 14, 2021 - 3:45pm - 5:00pm
    Title: Identifying the Spectral Fingerprint of Disease: Using Optical Imaging to Shed Light on Cancer

    Epithelial cancers are among the most dangerous forms of cancer, often with five-year survival rates as low as 20%. Early detection can significantly improve prognosis, but very few reliable early detection techniques exist for these cancers. Optical imaging is immensely promising for early...

  • Monday, October 4, 2021 - 3:30pm
    Speaker:  Dr. Shambhu Ghimire Topic:  High-harmonic Spectroscopy of Quantum Materials Host:  Dalziel Wilson Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive

    High-harmonic spectroscopy is a novel spectroscopic approach based on the microscopic mechanism for high-order harmonic generation (HHG). In the gas phase, it has been shown successfully that this approach can probe the structure and dynamics of atoms and small molecules. The understanding of...

  • Thursday, September 30, 2021 - 3:30pm - 5:00pm
    Speaker:  Dr. Douglas Shepher Topic:  Scalable, high-speed, 3D imaging of molecular biology in action Host:  Dalziel Wilson Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive  

    Continued advancements in biomedical optical microscopy and fluorescent labeling techniques have enabled multi-dimensional visualization of biology in action at the single-molecule level. For example, multiple large-scale efforts are currently underway to create nanoscale spatial maps of...

  • Thursday, September 23, 2021 - 3:30pm
    Speaker:  Dr. Matthieu Bloch Topic:  Towards Covert and Secret Quantum Networks Host:  Dalziel Wilson Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive

    Despite steady progress in “post-quantum” cryptography, quantum-secured communication, especially in the form of Quantum Key Distribution (QKD), remains to date  the only unconditionally secure technology to distribute secret keys. Quantum communication has effectively “...

  • Thursday, September 16, 2021 - 3:30pm - 5:00pm
    Speaker:  Dr. Ron Driggers Topic:  Advanced Infrared Systems Host:  Dr. Dalziel Wilson Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive

    Dr. Driggers will present several topics related to advanced infrared imaging systems.  He will start with a general discussion about dual band infrared systems (third generation FLIR).  Also included are small pitch, high density focal plane systems that eliminate the need for...

  • Thursday, September 9, 2021 - 3:30pm
    Description:  Speaker:  Dr. David Brady Topic:  Neural Processing and Snapshot Compressive Imaging Host:  Dalziel Wilson Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive

    Most imaging systems capture measurements distributed over two dimensional sensor planes. Most objects of interest are 3, 4 or 5 dimensional. (Hyperspectral images, video and volume stills are 3D, adding time, space and frequency together yields 4D or 5D data cubes). Over the past decade,...

  • Thursday, September 2, 2021 - 3:30pm
    Speaker:  Dr. Brandon Chalifoux Topic:  Fabrication, Alignment and Testing of Ultralight Mirrors for Future X-ray Telescopes Host:  Dalziel Wilson Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive

    Space telescopes may one day perform astronomical imaging with micro-arcsecond angular resolution in optical or even X-ray wave bands, if ultralight mirrors and structures can be fabricated and aligned with sufficient accuracy. My group’s research aims to fabricate, align, and test thin...

  • Thursday, August 26, 2021 - 3:30pm
      Speakers: Richard N. Youngworth and Dave Aikens Topic: What All Optical Scientists Should Know about (Optics) Standards Host: Dalziel Wilson Co-Host: Jose Sasian Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive

    In this presentation we give a “crash course” into what everyone should know about how standards affect optical sciences and industry. Standards have a long rich history of successful application, including setting scientific norms like weights and measures, units, safety, providing...