Andrea Armani is jointly appointed at the Ellison Institute of Technology as the Senior Director of Physical Sciences and Engineering and at the University of Southern California as the Ray Irani Chair in Chemical Engineering and Materials Science. The overarching mission of her research is to develop nonlinear materials and integrated devices to advance microscopy and diagnostics. She is a Fellow of Optica, SPIE, NAI, and AAAS, and the impact of her work has been recognized by the World Economic Forum and others. Tatevik Chalyan is a postdoctoral researcher in the Brussels Photonics Team at the Vrije Universiteit Brussel, Belgium. Her research interests cover the fields of biophotonics and optical biosensing. Her work focuses on the nanofabrication and development of plasmonic substrates for surface-enhanced Raman spectroscopy and fluorescence microscopy, as well as the study of microring resonators and interferometer-based biosensors for refractive index sensing, optofluidic design, and validation. Moreover, she is an Optica Ambassador. David Sampson is Emeritus Professor at the University of Surrey and based in Perth, Western Australia. His overarching research interests are in the science and applications of light in medicine and biology, biomedical optics, and biophotonics. He is an authority in optical coherence tomography (OCT), with main interests in the microscope-in-a-needle (which targets surgical and biopsy guidance, for which he was awarded the IEEE Distinguished Lecturer Award and several other prizes), optical elastography (the micro-scale imaging of the mechanical properties of tissue), polarization-sensitive OCT and OCT angiography. His main application domains have been breast cancer, respiratory disease, and skin cancer. He is a fellow of AIMBE, IEEE, Optica, and SPIE.