Journal Publications

Low Power Coherent Ising Machine Based on Mechanical Kerr Nonlinearity
YH Rah, YJ Jeong, S Han, and KS Yu
Physical Review Letters 130 (7), 073802 (2023)

Two-point coupling method to independently control coupling efficiency at different wavelengths
D Kim, S Han, DG Kim, K Ko, DY Choi, H Lee
Optics Letters 47 (1), 106-109 (2022)

High-performance and compact silicon photonic 3-dB adiabatic coupler based on shortest mode transformer method
IK Kim, DU Kim, VH Nguyen, S Han, TJ Seok
IEEE Photonics Journal 13 (4), 1-6 (2021)

Supercontinuum generation in As2S3 waveguides fabricated without direct etching
J Hwang, DG Kim, S Han, D Jeong, YH Lee, DY Choi, H Lee
Optics Letters 46 (10), 2413-2416 (2021)

32 × 32 silicon photonic MEMS switch with gap-adjustable directional couplers fabricated in commercial CMOS foundry
S. Han, J. Beguelin, L. Ochikubo, J. Jacobs, T. J. Seok, K. Yu, N. Quack, C.-K. Kim, R. S. Muller, and M. C. Wu
J. Opt. Microsyst. 1(02), (2021). [*equal contribution]
selected as a journal front cover

Universal light-guiding geometry for on-chip resonators having extremely high Q-factor
D.-G. Kim, S. Han, J. Hwang, I. H. Do, D. Jeong, J.-H. Lim, Y.-H. Lee, M. Choi, Y.-H. Lee, D.-Y. Choi, and H. Lee
Nat. Commun. 11(1), 5933 (2020) [*equal contribution]

Silicon photonic MEMS phase-shifter
H. Sattari, T. Graziosi, M. Kiss, T. J. Seok, S. Han, M. C. Wu, N. Quack
Optics Express, 2019, 27 (13), 18959-18969.

Multicast silicon photonic MEMS switches with gap-adjustable directional couplers
S. Han, T. J. Seok, C. -K. Kim, R. S. Muller, and M. C. Wu
Optics Express, 2019, 27 (13), 17561-17570

Non-fluorescent nanoscopic monitoring of a single trapped nanoparticle via nonlinear point sources
S. J. Yoon, J. Lee, S. Han, C. K. Kim, C. W. Ahn, M. K. Kim, and Y. H. Lee
Nat comm, 2019, 27 (13), 17561-17570.

Large-scale polarization-insensitive silicon photonic MEMS switches
S. Han, T. J. Seok, K. Yu, N. Quack, R. S. Muller, and M. C. Wu
Journal of Lightwave Technology, 2018, 36 (10), 1824-1830

Flip chip packaging of digital silicon photonics MEMS switch for cloud computing and data centre
H. Y. Hwang, J. S. Lee, T. J. Seok, A. Forencich, H. R. Grant, D. Knutson, N. Quack, S. Han, R. S. Muller, G. C. Papen, M. C. Wu, and P. O'. Brien
IEEE Photonics Journal, 2017, 9 (3), 1-10.

Scalable row/column addressing of silicon photonic MEMS switches
N. Quack, T. J. Seok, S. Han, R. S. Muller, and M. C. Wu
IEEE Photonics Technology Letters, 2016, 28 (5), 561-564

Large-scale broadband digital silicon photonic switches with vertical adiabatic couplers
T. J. Seok, N. Quack, S. Han, R. S. Muller, and M. C. Wu
Optica, 2016, 3 (1), 64-70.

Highly scalable digital silicon photonic MEMS switches
T. J. Seok, N. Quack, S. Han, R. S. Muller, and M. C. Wu,
Journal of Lightwave Technology, 2015, 34 (2), 365-371

Large-scale silicon photonic switches with movable directional couplers
S. Han, T. J. Seok, N. Quack, B. W. Yoo, and M. C. Wu
Optica, 2015, 2 (4), 370-375.

Conference Publications

The Manipulation of Four-Wave Mixing in a Fully Tunable MEMS Photonic Molecule
M. G. Lim, D. J. Choi, D. U. Kim, Y. J. Park, K. S. Yu, S. Han, and K. W. Jeong
Frontiers in Optics + Laser Science, Tacoma, Washington, 2023.[**Corresponding author]

High-extinction Reconfigurable Mach-Zehnder Interferometer based on Silicon Photonic MEMS
D. U. Kim, M. G. Lim, Y. J. Park, D. J. Choi, M. J. Her, M. S. Hong, Y. J. Jeong, K. S. Yu, and S. Han
The European Conference on Lasers and Electro-Optics (CLEO/EUROPE), 2023, OSA. [**Corresponding author]

Sub-Micron-Thick Electrostatic MEMS Platform for Power Efficient Silicon Photonic Circuits
M. G. Lim, Y. J. Jeong, D. U. Kim, Y. J. Park, M. J. Her, M. S. Hong, D. J. Choi, J. H. Kim, K. S. Yu, and S. Han
2023 IEEE 18th International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), Jeju, Republic of Korea, 2023.[**Corresponding author]

Optical Ultrasound Sensor Based on Silicon Photonic MEMS Cantilever with Tunable Dynamic Range
D. J. Choi, S. W. Nam, M. G. Lim, Y. J. Park, M. J. Her, D. U. Kim, H. J Seong, S. Han, and J. S. Yu
2023 IEEE 18th International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), Jeju, Republic of Korea, 2023.
[**Corresponding author]

Fully Tunable Fabry-Pérot Cavity based on Silicon Photonic MEMS with 10 nW Static Power Consumption
Y. J. Park, M. J. Her, D. U. Kim, D. J. Choi, M. G. Lim, M. S. Hong, and S. Han
Conference on Lasers and Electro-Optics (CLEO), 2023, OSA.
[Corresponding author]

Programmable MZI Based on Si Photonic MEMS Tunable Delay Line
M. S. Hong, D. U. Kim, M. G. Lim, D. J. Choi, M. J. Her, Y. J. Park, Y. J. Jeong, J. W. Park, S. J. Han, K. S. Yu, and S. Han
Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2022, OSA. [**Corresponding author]

Single Si Layer Immersion Optical Ultrasound Sensor with Ultra-thin Opto-mechanical Membrane
D. J. Choi, S. W. Nam, D. U. Kim, Y. J. Park, M. J. Her, M. G. Lim, M. S. Hong, H. J. Song, J. S. Yu, and S. Han
Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2022, OSA. [**Corresponding author]

Fully Tunable Sagnac Loop Reflector with 0.1 uW Static Power Silicon Photonic MEMS
M. J. Her, D. U. Kim, D. Y. Kim, Y. J. Jeong, Y. J. Park, D. J. Choi, M. S. Hong, Y. H. Rah, K. S. Yu and S. Han
Conference on Lasers and Electro-Optics (CLEO), 2022, OSA.
[**Corresponding author]

Ultra-Low-Power Unitary Matrix Multiplier Based on Silicon Photonic MEMS
D. U. Kim, D. Y. Kim, Y. J. Jeong, D. J. Choi, Y. J. Park, M. J. Her, M. S. Hong, M. G. Lim, Y. H. Rah, K. S. Yu and S. Han
Conference on Lasers and Electro-Optics (CLEO), 2022, OSA.
[**Corresponding author]

8 × 8 Programmable Multi-Beam Pattern Projection Based on Multicast Silicon Photonic MEMS Switches
D. U. Kim, M. S. Hong, D. Y. Kim, Y. Park, A. Y. Takabayashi, Y. J. Jeong, J. W. Park, S. J. Han, N. Quack, K. S. Yu, and S. Han
Optical Fiber Communication Conference and Exposition (OFC), 2021, OSA. [**Corresponding author] [Selected as Top Scored paper (top 10% among all accepted papers)]

16-Core Recirculating Programmable Si Photonic MEMS
D. Y. Kim, Y. Park, D. U. Kim, M. S. Hong, A. Y. Takabayashi, Y. J. Jeong, J. W. Park, S. J. Han, N. Quack, K. S. Yu and S. Han
Conference on Lasers and Electro-Optics (CLEO), 2021, OSA.
[Corresponding author]

Fully Reconfigurable Coupled-Resonator Optical Waveguides (CROWs) with 10nW Static Power MEMS
Y. J. Park, D. U. Kim, D. Y. Kim, M. S. Hong, A. Y. Takabayashi, Y. J. Jeong, J. W. Park, S. J. Han, N. Quack, K. S. Yu and S. Han
Conference on Lasers and Electro-Optics (CLEO), 2021, OSA.
[Corresponding author]

Chalcogenide-silica hybrid planar platform for high performance nonlinear optic devices
D. -Y. Choi, S. Han, J. Hwang, Y. -H. Lee, D. -G. Kim, I. H. Do, D. Jeong, H. Lee

OSA Laser Congress, 2019, OSA.

Brillouin lasers based on 11 million-Q on-chip chalcogenide resonators without direct etch process
S. Han, D. -G. Kim, J. Hwang, I. H. Do, D. Jeong, Y. -H. Lee, D. -Y. Choi, and H. Lee
International Conference on Optical MEMS and Nanophotonics (OMN), 2019, IEEE.

On-chip stimulated Brillouin lasers based on chalcogenide glass resonators with 10 million Q-factor
S. Han, D. -G. Kim, J. Hwang, I. H. Do, D. Jeong, Y. -H. Lee, D. -Y. Choi, and H. Lee
Conference on Lasers and Electro-Optics (CLEO), 2019, OSA, paper SM4O.2.

Surface micromachined silicon photonic MEMS: a scalable technology platform for photonic network components
N. Quack, T. J. Seok, S. Han, H. Sattari, T. Graziosi, M. Kiss, R. S. Muller, and M. C. Wu
Photonic Networks and Devices, 2018, OSA, NeM4F.1.

Silicon photonic MEMS variable optical attenuator
T. Graziosi, H. Sattari, T. J. Seok, S. Han, M. C. Wu, and N. Quack
Proceedings of SPIE: MOEMS and Miniaturized Systems XVII, 2018, SPIE, 105450H.

Analog silicon photonic MEMS phase-shifter with double-step electrostatic actuation
H. Sattari, T. Graziosi, M. Kiss, T. J. Seok, S. Han, M. C. Wu, and N. Quack
International Conference on Optical MEMS and Nanophotonics (OMN), 2017, IEEE.

Large-scale silicon photonic switches with MEMS
T. J. Seok, S. Han, and M. C. Wu
IEEE Photonics Society Summer Topical Meeting Series (SUM), 2017, IEEE.

Silicon photonic switches for datacenters
M. C. Wu, T. J. Seok, and S. Han
Frontiers in Optics, 2016, OSA, FTu1D.6. [**Corresponding author]

12× 12 packaged digital silicon photonic MEMS switches
T. J. Seok, H. Y. Hwang, J. S. Lee, A. Forencich, H. R. Grant, D. Knutson, N. Quack, S. Han, R. S. Muller, L. Carroll, G. C. Papen, P. O'Brien, and M. C. Wu,
IEEE Photonics Conference (IPC), 2016, IEEE.

50x50 polarization-insensitive silicon photonic MEMS switches: design and experiment
S. Han, T. J. Seok, K. Yu, N. Quack, R. S. Muller, and M. C. Wu
European Conference on Optical Communication (ECOC), 2016, VDE, Post Deadline paper

Die level release of silicon photonic MEMS
J. Jacobs, T. Graziosi, M. Kiss, S. Han, T. J. Seok, M. C. Wu, and N. Quack
International Conference on Optical MEMS and Nanophotonics (OMN), 2016, IEEE.

MEMS-enabled scalable silicon photonic switches
M. C. Wu, T. J. Seok, S. Han, and N. Quack
Frontiers in Optics, 2015, OSA, FW3B.2.

64× 64 low-loss and broadband digital silicon photonic MEMS switches
T. J. Seok, N. Quack, S. Han, W. Zhang, R. S. Muller, and M. C. Wu
European Conference on Optical Communication (ECOC), 2015, IEEE.

Large-scale, MEMS-actauated silicon photonic switches
M. C. Wu, T. J. Seok, S. Han, N. Quack
International Conference on Photonics in Switching (PS), 2015, IEEE.

Reliability study of digital silicon photonic MEMS switches
T. J. Seok, N. Quack, S. Han, W. Zhang, R. S. Muller, and M. C. Wu
International Conference on Group IV Photonics (GFP), 2015, IEEE.

Row/column addressing of scalable silicon photonic MEMS switches
N. Quack, T. J. Seok, S. Han, W. Zhang, R. S. Muller, and M. C. Wu

International Conference on Optical MEMS and Nanophotonics (OMN), 2015, IEEE.

Multicast 4× 20 silicon photonic MEMS switches

S. Han, T. J. Seok, C. K. Kim, R. S. Muller, and M. C. Wu

Conference on Lasers and Electro-Optics (CLEO), 2015, OSA, Stu1F.1.

Large-port-count MEMS silicon photonics switches

M. C. Wu, S. Han, T. J. Seok, and N. Quack

Optical Fiber Communications Conference and Exhibition (OFC), 2015, IEEE, M2B.3.

50× 50 digital silicon photonic switches with MEMS-actuated adiabatic couplers

T. J. Seok, N. Quack, S. Han, and M. C. Wu

Optical Fiber Communications Conference (OFC), 2015, IEEE, M2B4.

Monolithic large-scale optical switches using silicon photonic MEMS

M. C. Wu, S. Han, T. J. Seok, and N. Quack

OptoElectronics and Communication Conference (OECC), 2014, IEEE.

Development of an FMCW LADAR source chip using MEMS-electronic-photonic heterogeneous integration

N. Quack, J. Ferrara, S. Gambini, S. Han, C. Keraly, P. Qiao, Y. Rao, P. Sandborn, L. Zhu, S. -L. Chuang, E. Yablonovitch, B. Boser, C. Chang-Hasnain, and M. C. Wu

GOMACTech Conference, 2014.

Monolithic 50× 50 MEMS silicon photonic switches with microsecond response time

S. Han, T. J. Seok, N. Quack, B. -W. Yoo, and M. C. Wu

Optical Fiber Communications Conference (OFC), 2014, M2K.2.

Patents

M. C. Wu, S. Han, T. J. Seok, N. Quack, B. -W. Yoo, “Silicon-photonics-based optical switch,” US patent, 2018, US10061085B2.
T. J. Seok, S. Han, M. C. Wu, “Silicon-photonics-based optical switch with low polarization sensitivity”, US patent, 2019, US20190253775A1.

Journal Publications

Low Power Coherent Ising Machine Based on Mechanical Kerr Nonlinearity YH Rah, YJ Jeong, S Han, and KS Yu Physical Review Letters 130 (7), 073802 (2023)

Two-point coupling method to independently control coupling efficiency at different wavelengths D Kim, S Han, DG Kim, K Ko, DY Choi, H Lee Optics Letters 47 (1), 106-109 (2022)

High-performance and compact silicon photonic 3-dB adiabatic coupler based on shortest mode transformer method IK Kim, DU Kim, VH Nguyen, S Han, TJ Seok IEEE Photonics Journal 13 (4), 1-6 (2021)

Supercontinuum generation in As2S3 waveguides fabricated without direct etching J Hwang, DG Kim, S Han, D Jeong, YH Lee, DY Choi, H Lee Optics Letters 46 (10), 2413-2416 (2021)

Universal light-guiding geometry for on-chip resonators having extremely high Q-factor D.-G. Kim*, S. Han*, J. Hwang, I. H. Do, D. Jeong, J.-H. Lim, Y.-H. Lee, M. Choi, Y.-H. Lee, D.-Y. Choi, and H. Lee Nat. Commun. 11(1), 5933 (2020) [*equal contribution]

Silicon photonic MEMS phase-shifter H. Sattari, T. Graziosi, M. Kiss, T. J. Seok, S. Han, M. C. Wu, N. Quack Optics Express, 2019, 27 (13), 18959-18969.

Multicast silicon photonic MEMS switches with gap-adjustable directional couplers S. Han, T. J. Seok, C. -K. Kim, R. S. Muller, and M. C. Wu Optics Express, 2019, 27 (13), 17561-17570

Non-fluorescent nanoscopic monitoring of a single trapped nanoparticle via nonlinear point sources S. J. Yoon, J. Lee, S. Han, C. K. Kim, C. W. Ahn, M. K. Kim, and Y. H. Lee Nat comm, 2019, 27 (13), 17561-17570.

Large-scale polarization-insensitive silicon photonic MEMS switches S. Han, T. J. Seok, K. Yu, N. Quack, R. S. Muller, and M. C. Wu Journal of Lightwave Technology, 2018, 36 (10), 1824-1830

Flip chip packaging of digital silicon photonics MEMS switch for cloud computing and data centre H. Y. Hwang, J. S. Lee, T. J. Seok, A. Forencich, H. R. Grant, D. Knutson, N. Quack, S. Han, R. S. Muller, G. C. Papen, M. C. Wu, and P. O'. Brien IEEE Photonics Journal, 2017, 9 (3), 1-10.

Scalable row/column addressing of silicon photonic MEMS switches N. Quack, T. J. Seok, S. Han, R. S. Muller, and M. C. Wu IEEE Photonics Technology Letters, 2016, 28 (5), 561-564

Large-scale broadband digital silicon photonic switches with vertical adiabatic couplers T. J. Seok, N. Quack, S. Han, R. S. Muller, and M. C. Wu Optica, 2016, 3 (1), 64-70.

Highly scalable digital silicon photonic MEMS switches T. J. Seok, N. Quack, S. Han, R. S. Muller, and M. C. Wu, Journal of Lightwave Technology, 2015, 34 (2), 365-371

Large-scale silicon photonic switches with movable directional couplers S. Han, T. J. Seok, N. Quack, B. W. Yoo, and M. C. Wu Optica, 2015, 2 (4), 370-375.