4 papers
Ultra-high precision speckle spectrometer enabling radio-frequency scale resolution of atomic spectra
Gabriel Britto Monteiro, Christopher Perrella, Sarah K. Scholten +4
Laser speckle, the granular intensity pattern arising from random optical interference, provides a high-dimensional encoding of spectral information that can be exploited for preci…
Sensing with Twisted Light: Precision Measurement of Fractional Azimuthal Index to Determine Refractive Index
Christopher Perrella, Aman Anil Punse, Anastasiia Zalogina +6
Light beams possessing orbital angular momentum (OAM) have gained significant interest in areas such as optical manipulation, quantum entanglement, and super-resolved imaging. In i…
Optimising image capture for low-light widefield quantitative fluorescence microscopy
Zane Peterkovic, Avinash Upadhya, Christopher Perrella +5
Low-light optical imaging refers to the use of cameras to capture images with minimal photon flux. This area has broad application to diverse fields, including optical microscopy f…
A neuromorphic camera for tracking passive and active matter with lower data throughput
Gabriel Britto Monteiro, Megan Lim, Tiffany Cheow Yuen Tan +8
We demonstrate the merits of using a neuromorphic, or event-based camera (EBC), for tracking of both passive and active matter. For passive matter, we tracked the Brownian motion o…