All-solid-state spatial light modulator with independent phase and amplitude control for three-dimensional LiDAR applications

Park, Junghyun; Jeong, Byung Gil; Kim, Sun Il; Lee, Duhyun; Kim, Jung-Woo; Shin, Changyong; Lee, Chang Bum; Otsuka, Tatsuhiro; Kyoung, Jisoo; Kim, Sang–Wook; Yang, Ki Yeon; Park, Yong Young; Lee, Jisan; Hwang, Inoh; Jang, Jaeduck; Song, Seok Ho; Brongersma, Mark L.; Ha, K. H.; Hwang, Sung Woo; Choo, Hyuck; Choi, Byoung Lyong

doi:10.1038/s41565-020-00787-y

Cited by 294 publications

(275 citation statements)

References 36 publications

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“…By gauge transformation, an antiferromagnetic Hamiltonian can be evaluated through the correlation between the distribution function and the measured optical intensity with SPIM. To improve the processing speed of the system, the ultrafast SLM and CCD at gigahertz rates with the most recent technologies [66,67] is helpful and practical. Also, the computing accuracy can be im-proved with a more sensitive CCD camera.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Antiferromagnetic spatial photonic Ising machine through optoelectronic correlation computing

Huang

Fang

Ruan

2021

Preprint

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Recently, spatial photonic Ising machines (SPIM) have been demonstrated to compute the minima of Hamiltonians for large-scale spin systems. Here we propose to implement an antiferromagnetic model through optoelectronic correlation computing with SPIM. Also we exploit the gauge transformation which enables encoding the spins and the interaction strengths in a single phase-only spatial light modulator. With a simple setup, we experimentally show the ground state search of an antiferromagnetic model with $40000$ spins in number-partitioning problem. Thus such an optoelectronic computing exhibits great programmability and scalability for the practical applications of studying statistical systems and combinatorial optimization problems.

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Section: Conclusion and Discussionmentioning

confidence: 99%

Antiferromagnetic spatial photonic Ising machine through optoelectronic correlation computing

Huang

Fang

Ruan

2021

Preprint

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“…Other emerging solutions to the slow response time of LCoS devices typically involve a combination of novel liquid crystal materials and/or metamaterials. Speeds up to 170 kHz have been achieved using solid-state nanoresonator arrays, but spectral bandwidth is limited to near resonance wavelengths and are often unable to provide full wave modulation [18][19][20]. Stressed liquid crystal cells have been demonstrated with speeds passing 10 kHz, but require a large driving voltage [21].…”

Section: Alternative Phase Distributionsmentioning

confidence: 99%

Diffraction Efficiency Characteristics for MEMS-Based Phase-Only Spatial Light Modulator with Nonlinear Phase Distribution

Ketchum

Blanche

2021

Photonics

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Micro-electro mechanical systems (MEMS)-based phase-only spatial light modulators (PLMs) have the potential to overcome the limited speed of liquid crystal on silicon (LCoS) spatial light modulators (SLMs) and operate at speeds faster than 10 kHz. This expands the practicality of PLMs to several applications, including communications, sensing, and high-speed displays. The complex structure and fabrication requirements for large, 2D MEMS arrays with vertical actuation have kept MEMS-based PLMs out of the market in favor of LCoS SLMs. Recently, Texas Instruments has adapted its existing DMD technology for fabricating MEMS-based PLMs. Here, we characterize the diffraction efficiency for one of these PLMs and examine the effect of a nonlinear distribution of addressable phase states across a range of wavelengths and illumination angles.

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“…Nevertheless, metalenses have strong advantages over conventional lenses, including their thin profile, low weight, diffraction-limited focusing, high NA, and unprecedented functions that cannot be achieved using other optical components. In addition, metalenses may be combined with other technologies to produce ultrahigh density organic light-emitting diodes (Joo et al, 2020), light detecting and ranging (Park et al, 2020;Xie et al, 2020), wearable optical devices, cameras for smartphones, and super-resolution microscopes. These properties represent the incredible potential of metalenses to lead optical engineering of the future with unprecedented applications in the future of optics.…”

Section: Summary and Outlooksmentioning

confidence: 99%

Recent Progress on Ultrathin Metalenses for Flat Optics

et al. 2020

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As technology advances, electrical devices such as smartphones have become more and more compact, leading to a demand for the continuous miniaturization of optical components. Metalenses, ultrathin flat optical elements composed of metasurfaces consisting of arrays of subwavelength optical antennas, provide a method of meeting those requirements. Moreover, metalenses have many other distinctive advantages including aberration correction, active tunability, and semi-transparency, compared to their conventional refractive and diffractive counterparts. Therefore, over the last decade, great effort has been focused on developing metalenses to investigate and broaden the capabilities of metalenses for integration into future applications. Here, we discuss recent progress on metalenses including their basic design principles and notable characteristics such as aberration correction, tunability, and multifunctionality.

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All-solid-state spatial light modulator with independent phase and amplitude control for three-dimensional LiDAR applications

Cited by 294 publications

References 36 publications

Antiferromagnetic spatial photonic Ising machine through optoelectronic correlation computing

Antiferromagnetic spatial photonic Ising machine through optoelectronic correlation computing

Diffraction Efficiency Characteristics for MEMS-Based Phase-Only Spatial Light Modulator with Nonlinear Phase Distribution

Recent Progress on Ultrathin Metalenses for Flat Optics

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