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Displaying 1 - 10 of 10

Beating thermal noise in a dynamic signal measurement by a nanofabricated cavity-optomechanical sensor

March 15, 2023
Author(s)
Mingkang Wang, Diego Perez Morelo, Georg Ramer, Georges Pavlidis, Jeffrey Schwartz, Liya Yu, Robert Ilic, Andrea Centrone, Vladimir Aksyuk
Thermal fluctuations often impose both fundamental and practical measurement limits on high-performance sensors, motivating the development of techniques that bypass the limitations imposed by thermal noise outside cryogenic environments. Here, we

Highly-twisted states of light from a high quality factor photonic crystal ring

February 27, 2023
Author(s)
Xiyuan Lu, Mingkang Wang, Feng Zhou, Mikkel Heuck, Wenqi Zhu, Vladimir Aksyuk, Dirk Englund, Kartik Srinivasan
Twisted light with orbital angular momentum (OAM) has been extensively studied for applications in quantum and classical communications, microscopy, and optical micromanipulation. Ejecting the naturally high angular momentum whispering gallery modes (WGMs)

Fractional optical angular momentum and multi-defect-mediated mode renormalization and orientation control in photonic crystal microring resonators

October 28, 2022
Author(s)
Mingkang Wang, Feng Zhou, Xiyuan Lu, Andrew McClung, Vladimir Aksyuk, Kartik Srinivasan
Whispering gallery modes (WGMs) in circularly symmetric optical microresonators exhibit integer quantized angular momentum numbers due to the boundary condition imposed by the geometry. Here, we show that incorporating a photonic crystal pattern in an

High throughput nanoimaging of thermal conductivity and interfacial thermal conductance

May 17, 2022
Author(s)
Mingkang Wang, Georg Ramer, Diego Perez, Georges Pavlidis, Jeffrey Schwartz, Liya Yu, Robert Ilic, Vladimir Aksyuk, Andrea Centrone
Thermal properties of materials are often determined by measuring thermalization processes. Measuring such properties at the nanoscale, however, requires high sensitivity, high temporal, and high spatial resolutions concurrently, which is beyond the

Overcoming thermo-optical dynamics in broadband nanophotonic sensing

July 7, 2021
Author(s)
Mingkang Wang, Diego J. Perez, Vladimir Aksyuk
Advances in integrated photonics open exciting opportunities for batch-fabricated optical nano- electro-mechanical sensors with ultra-high sensitivities and bandwidths enabled by cavity optomechanics. However, heat from the amplified optical intensity