65 citations · 76 across the 8 of their papers we have counts for
7 papers · 1 filter
On the localization of the high-intensity region of simultaneous space-time foci
Emily Archer, Bangshan Sun, Roman Walczak +2
Simultaneous space-time focusing (SSTF) is sometimes claimed to reduce the longitudinal extent of the high-intensity region near the focus, in contradiction to the original work on…
Intensity adaptive optics
Zimo Zhao, Yifei Ma, Zipei Song +12
Adaptive optics (AO) is a powerful tool employed across various research fields, from aerospace to microscopy. Traditionally, AO has focused on correcting optical phase aberrations…
Polarization based modulation of splitting ratio in femtosecond laser direct written directional couplers
Zhi-Kai Pong, Bangshan Sun, Patrick S. Salter +1
This work characterizes a phenomenon in direct laser written directional couplers where the splitting ratio for output light is dependent on the input polarization state. In genera…
A reconfigurable arbitrary retarder array as complex structured matter
Chao He, Binguo Chen, Zipei Song +31
Tuneable retarder arrays, such as spatially patterned liquid crystal devices, have given rise to impressive photonic functionality, fuelling diverse applications ranging from micro…
High Speed Precise Refractive Index Modification for Photonic Chips through Phase Aberrated Pulsed Lasers
Bangshan Sun, Simon Moser, Alexander Jesacher +3
Integrated photonic chips have significant potential in telecommunications, classic computing, quantum systems, and topological photonics. Direct laser writing offers unique capabi…
On-chip beam rotators, adiabatic mode converters, and waveplates through low-loss waveguides with variable cross-sections
Bangshan Sun, Fyodor Morozko, Patrick S. Salter +14
Photonics integrated circuitry would benefit considerably from the ability to arbitrarily control waveguide cross-sections with high precision and low loss, in order to provide mor…
Four-dimensional light shaping: manipulating ultrafast spatio-temporal foci in space and time
Bangshan Sun, Patrick S. Salter, Clemens Roider +5
Spectral dispersion of ultrashort pulses allows simultaneous focusing of light in both space and time creating so-called spatio-temporal foci. Such space-time coupling may be combi…