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1. Stable Optical Trap from a Single Optical Field Utilizing Birefringence

   https://doi.org/10.1103/PhysRevLett.117.213604  

   Singh, Robinjeet; Cole, Garrett_D; Cripe, Jonathan; Corbitt, Thomas (November 2016, Physical Review Letters)
2. A Hybrid Optical-Electrical Analog Deep Learning Accelerator Using Incoherent Optical Signals

   https://doi.org/10.1145/3453688.3461531  

   Yang, Mingdai; Jokar, Mohammad Reza; Qiu, Junyi; Lou, Qiuwen; Liu, Yuming; Udupa, Aditi; Chong, Frederic T.; Dallesasse, John M.; Feng, Milton; Goddard, Lynford L.; et al (July 2021, GLSVLSI '21: Proceedings of the 2021 on Great Lakes Symposium on VLSI)

   null (Ed.)

   We present a hybrid optical-electrical analog deep learning (DL) accelerator, the first work to use incoherent optical signals for DL workloads. Incoherent optical designs are more attractive than coherent ones as the former can be more easily realized in practice. However, a significant challenge in analog DL accelerators, where multiply-accumulate operations are dominant, is that there is no known solution to perform accumulation using incoherent optical signals. We overcome this challenge by devising a hybrid approach: accumulation is done in the electrical domain, while multiplication is performed in the optical domain. The key technology enabler of our design is the transistor laser, which performs electrical-to-optical and optical-to-electrical conversions efficiently to tightly integrate electrical and optical devices into compact circuits. As such, our design fully realizes the ultra high-speed and high-energy-efficiency advantages of analog and optical computing. Our evaluation results using the MNIST benchmark show that our design achieves 2214× and 65× improvements in latency and energy, respectively, compared to a state-of-the-art memristor-based analog design. 

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3. All-Optical Kerr Synchronization of a Dissipative Kerr Soliton Microcomb to an Optical Reference

   Grégory Moille, Jordan Stone (January 2023, Nonlinear Optics 2023)

   We demonstrate Kerr-mediated all-optical synchronization of a dissipative Kerr solition with an external master laser in a single microring resonator. It enables passive frequency division for optical clock metrology applications. 

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4. Optimal design of a microring cavity optical modulator for efficient RF-to-optical conversion

   https://doi.org/10.1364/OE.26.002462  

   Ehrlichman, Yossef; Khilo, Anatol; Popović, Miloš A. (January 2018, Optics Express)
5. Sub-Doppler optical-optical double-resonance spectroscopy using a cavity-enhanced frequency comb probe

   https://doi.org/10.1038/s41467-023-44417-2  

   Silva_de_Oliveira, Vinicius; Silander, Isak; Rutkowski, Lucile; Soboń, Grzegorz; Axner, Ove; Lehmann, Kevin_K; Foltynowicz, Aleksandra (January 2024, Nature Communications)

   Abstract Accurate parameters of molecular hot-band transitions, i.e., those starting from vibrationally excited levels, are needed to accurately model high-temperature spectra in astrophysics and combustion, yet laboratory spectra measured at high temperatures are often unresolved and difficult to assign. Optical-optical double-resonance (OODR) spectroscopy allows the measurement and assignment of individual hot-band transitions from selectively pumped energy levels without the need to heat the sample. However, previous demonstrations lacked either sufficient resolution, spectral coverage, absorption sensitivity, or frequency accuracy. Here we demonstrate OODR spectroscopy using a cavity-enhanced frequency comb probe that combines all these advantages. We detect and assign sub-Doppler transitions in the spectral range of the 3ν₃ ← ν₃resonance of methane with frequency precision and sensitivity more than an order of magnitude better than before. This technique will provide high-accuracy data about excited states of a wide range of molecules that is urgently needed for theoretical modeling of high-temperature data and cannot be obtained using other methods. 

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