Colloquium

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...