414 citations · 528 across the 13 of their papers we have counts for
14 papers
Unveiling charge dynamics on the generation of high extinction wide pulse generation on thin-film lithium tantalate
Ayed Al Sayem, Shiekh Zia Uddin, Ting-Chen Hu +6
We experimentally demonstrate high-extinction optical pulse generation in thin-film lithium tantalate (TFLT), achieving a wide range of pulse widths with sharp rise and fall edges,…
CLUSTER: Derivative-free optimization of smooth functions with parameter-change costs
Serena Landers, Sahil Pontula, Shiekh Zia Uddin +3
We introduce the CLUSTER algorithm (\textbf{c}oordinate-\textbf{l}evel \textbf{u}pdate \textbf{s}trategy for \textbf{t}rust-region step \textbf{e}valuation \textbf{r}efinement) for…
Stable thin-film lithium tantalate modulators operating at high temperature for uncooled operation
Ayed Al Sayem, Shiekh Zia Uddin, Ting-Chen Hu +4
We demonstrate stable operation of a thin-film lithium tantalate (TFLT) modulator at very high operating temperatures. We show that the electro-optic modulation and bandwidth of th…
High bandwidth traveling wave electro-optic modulator at 1μm on thin-film lithium tantalate
Ayed Al Sayem, Shiekh Zia Uddin, Ting-Chen Hu +4
We present the first experimental demonstration of a high-bandwidth thin-film lithium tantalate (TFLT) electro-optic modulator operating at 1 μm, with a Vπ of 2.4 V, and less than…
A Framework for Closed-Loop Robotic Assembly, Alignment and Self-Recovery of Precision Optical Systems
Seou Choi, Sachin Vaidya, Caio Silva +4
Robotic automation has transformed scientific workflows in domains such as chemistry and materials science, yet free-space optics, which is a high precision domain, remains largely…
High-power handling and bias stability of thin-film Lithium Tantalate microring and coupling resonators
Ayed Sayem, Shiekh Zia Uddin, Ting-Chen Hu +4
In this paper, we demonstrate the ultra-high-power handling capability and DC bias stability of optical microring and electro-optic (EO) coupling resonators on the thin-film lithiu…
Programmable control of the spatiotemporal quantum noise of light
Jamison Sloan, Michael Horodynski, Shiekh Zia Uddin +6
Optoelectronic systems based on multiple modes of light can often exceed the performance of their single-mode counterparts. However, multimode nonlinear interactions often introduc…
AI-Driven Robotics for Optics
Shiekh Zia Uddin, Sachin Vaidya, Shrish Choudhary +5
Optics is foundational to research in many areas of science and engineering, including nanophotonics, quantum information, materials science, biomedical imaging, and metrology. How…
Probing intensity noise in ultrafast pulses using the dispersive Fourier transform augmented by quantum sensitivity analysis
Shiekh Zia Uddin, Sahil Pontula, Jiaxin Liu +4
To reach the next frontier in multimode nonlinear optics, it is crucial to better understand the classical and quantum phenomena of systems with many interacting degrees of freedom…
Non-reciprocal frequency conversion in a multimode nonlinear system
Sahil Pontula, Sachin Vaidya, Charles Roques-Carmes +3
Nonlinear optics has become the workhorse for countless applications in classical and quantum optics, from optical bistability to single photon pair generation. However, the intrin…
Photonic probabilistic machine learning using quantum vacuum noise
Seou Choi, Yannick Salamin, Charles Roques-Carmes +7
Probabilistic machine learning utilizes controllable sources of randomness to encode uncertainty and enable statistical modeling. Harnessing the pure randomness of quantum vacuum n…
Measuring Power with a Saturated Photodiode
Shiekh Zia Uddin
Accurate measurement of optical power is pivotal in many applications and scientific research. However, traditional power meters are unable to measure power levels beyond a certain…
Inhibited nonradiative decay at all exciton densities in monolayer semiconductors
Hyungjin Kim, Shiekh Zia Uddin, Naoki Higashitarumizu +2
Most optoelectronic devices operate at high photocarrier densities, where all semiconductors suffer from enhanced nonradiative recombination. Nonradiative processes proportionately…
Electrical suppression of all nonradiative recombination pathways in monolayer semiconductors
Der-Hsien Lien, Shiekh Zia Uddin, Matthew Yeh +5
Defects in conventional semiconductors substantially lower the photoluminescence (PL) quantum yield (QY), a key metric of optoelectronic performance that directly dictates the maxi…