Prof. Hongtao Lin Profile

Prof. Hongtao Lin

at Zhejiang University

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 13 December 2024 Paper

Nonvolatile silicon photonics based on monolithic back-end-of-line integration phase-change-materials platform for optical neural networks

Kai Xu, Maoliang Wei, Bo Tang, Junying Li, Lan Li, Hongtao Lin

Proceedings Volume 13502, 1350202 (2024) https://doi.org/10.1117/12.3045725

KEYWORDS: Pulse signals, Silicon photonics, Optical transmission, Waveguides, Photonic integrated circuits, Integrated optics, Optoelectronic devices, Optoelectronics integration, Infrared materials

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Proceedings Article | 13 December 2024 Paper

Scalable fabrication techniques for high-performance chalcogenide integrated photonic devices

Kunhao Lei, Maoliang Wei, Kangjian Bao, Kai Xu, Lan Li, Hongtao Lin

Proceedings Volume 13499, 134990C (2024) https://doi.org/10.1117/12.3045710

KEYWORDS: Silicon photonics, Back end of line, Chalcogenide glass, Integrated photonics

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Proceedings Article | 5 December 2024 Paper

Advancements in intelligent photonics: the role of silicon photonics and phase change materials in high-efficiency computing

Yiting Yun, Kai Xu, Weiquan Wang, Maoliang Wei, Junying Li, Zequn Chen, Lan Li, Hongtao Lin

Proceedings Volume 13418, 134182M (2024) https://doi.org/10.1117/12.3048573

KEYWORDS: Power consumption, Silicon photonics, Refractive index, Pulse signals, Optical computing, Photonics, Optical switching, Signal attenuation, Phase modulation, Integrated optics

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Proceedings Article | 28 November 2023 Paper

Nonvolatile electrically reconfigurable silicon photonics enabled by back-end-of-line integration of phase change materials

Junying Li, Maoliang Wei, Kai Xu, Bo Tang, Yiting Yun, Peng Zhang, Yingchun Wu, Kangjian Bao, Kunhao Lei, Zequn Chen, Hui Ma, Chunlei Sun, Ruonan Liu, Ming Li, Lan Li, Hongtao Lin

Proceedings Volume 12764, 127640D (2023) https://doi.org/10.1117/12.2687022

KEYWORDS: Silicon photonics, Waveguides, Photonics, Fabrication, Back end of line, Silicon, Antimony, Switching, Switches, Photonic devices, Chalcogenides

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SPIE Journal Paper | 18 July 2023 Open Access

Electrically programmable phase-change photonic memory for optical neural networks with nanoseconds in situ training capability

Maoliang Wei, Junying Li, Zequn Chen, Bo Tang, Zhiqi Jia, Peng Zhang, Kunhao Lei, Kai Xu, Jianghong Wu, Chuyu Zhong, Hui Ma, Yuting Ye, Jialing Jian, Chunlei Sun, Ruonan Liu, Ying Sun, Wei. E. I. Sha, Xiaoyong Hu, Jianyi Yang, Lan Li, Hongtao Lin

AP, Vol. 5, Issue 04, 046004, (July 2023) https://doi.org/10.1117/12.10.1117/1.AP.5.4.046004

KEYWORDS: Education and training, Phase modulation, Antimony, Selenium, Modulation, Pulse signals, Neural networks, Power consumption, Crystallization, PIN photodiodes

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SPIE Journal Paper | 26 November 2020 Open Access

High spatial and temporal resolution synthetic aperture phase microscopy

Cheng Zheng, Di Jin, Yanping He, Hongtao Lin, Juejun Hu, Zahid Yaqoob, Peter T. So, Renjie Zhou

AP, Vol. 2, Issue 06, 065002, (November 2020) https://doi.org/10.1117/12.10.1117/1.AP.2.6.065002

KEYWORDS: Temporal resolution, Microscopy, Synthetic aperture microscopy, Video, Digital micromirror devices, Diffraction, Scanning electron microscopy, Objectives, Image resolution, Coherence imaging

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Proceedings Article | 26 February 2020 Presentation + Paper

2D-material-enabled multifunctional mid-IR optoelectronics

Skylar Deckoff-Jones, Yixiu Wang, Hongtao Lin, Wenzhuo Wu, Juejun Hu

Proceedings Volume 11284, 112841U (2020) https://doi.org/10.1117/12.2543619

KEYWORDS: Mid-IR, Waveguides, Modulators, Sensors, Crystals, Refractive index, Tellurium, Modulation, Photodetectors, Photonic crystals

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Proceedings Article | 13 May 2019 Presentation + Paper

Chip-scale high-performance digital Fourier Transform (dFT) spectrometers

Derek Kita, Brando Miranda, Carlos Ríos, David Favela, David Bono, Jérôme Michon, Hongtao Lin, Tian Gu, Juejun Hu

Proceedings Volume 10983, 1098306 (2019) https://doi.org/10.1117/12.2518437

KEYWORDS: Spectrometers, Spectroscopes, Signal to noise ratio, Switches, Spectral resolution, Spectrum analysis, Waveguides, Fourier transforms, Mach-Zehnder interferometers, Chemical elements

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Proceedings Article | 4 March 2019 Presentation + Paper

Integrated photonics put at full stretch: flexible and stretchable photonic devices enabled by optical and mechanical co-design

Lan Li, Hongtao Lin, Shutao Qiao, Yizhong Huang, Junying Li, Jerome Michon, Carlos Alonso-Ramos, Laurent Vivien, Anupama Yadav, Kathleen Richardson, Nanshu Lu, Tian Gu, Juejun Hu

Proceedings Volume 10922, 109220M (2019) https://doi.org/10.1117/12.2505830

KEYWORDS: Waveguides, Photonic devices, Integrated optics, Sensors, Resonators, Polymers, Photodetectors, Glasses, Integrated photonics, Epoxies

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Proceedings Article | 14 March 2018 Presentation

Chalcogenide glass-on-2D-materials photonics (Conference Presentation)

Hongtao Lin, Yi Song, Yizhong Huang, Derek Kita, Skylar Deckoff-Jones, Kaiqi Wang, Lan Li, Junying Li, Hanyu Zheng, Zhengqian Luo, Spencer Novak, Anupama Yadav, Chung-Che Huang, Haozhe Wang, Ren-Jye Shiue, Dirk Englund, Tian Gu, Daniel Hewak, Kathleen Richardson, Jing Kong, Juejun Hu

Proceedings Volume 10537, 105370W (2018) https://doi.org/10.1117/12.2287588

KEYWORDS: Mid-IR, Photonics, Chalcogenide glass, Graphene, Silicon, Phosphorus, Silicon photonics, Chalcogenides, Integrated photonics, Singular optics

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Proceedings Article | 30 May 2017 Presentation + Paper

Integrated photonics for infrared spectroscopic sensing

Hongtao Lin, Derek Kita, Zhaohong Han, Peter Su, Anu Agarwal, Anupama Yadav, Kathleen Richardson, Tian Gu, Juejun Hu

Proceedings Volume 10249, 102490G (2017) https://doi.org/10.1117/12.2267886

KEYWORDS: Infrared spectroscopy, Spectroscopes, Infrared radiation, Chalcogenide glass, Integrated photonics, Infrared photography, Infrared sensors, Chemical analysis, Gold, Standards development

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Proceedings Article | 17 April 2017 Presentation + Paper

On-chip infrared sensors: redefining the benefits of scaling

Derek Kita, Hongtao Lin, Anu Agarwal, Anupama Yadav, Kathleen Richardson, Igor Luzinov, Tian Gu, Juejun Hu

Proceedings Volume 10081, 100810F (2017) https://doi.org/10.1117/12.2250237

KEYWORDS: Spectrometers, Modulation, Absorption, Waveguides, Switches, FT-IR spectroscopy, Infrared spectroscopy, Spectroscopes, Sensors, Spectral resolution

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Proceedings Article | 27 July 2016 Presentation

Subwavelength engineered fiber-to-chip silicon-on-sapphire interconnects for mid-infrared applications (Conference Presentation)

Carlos Alonso-Ramos, Zhaohong Han, Xavier Le Roux, Hongtao Lin, Vivek Singh, Pao Tai Lin, Dawn Tan, Eric Cassan, Delphine Marris-Morini, Laurent Vivien, Kazumi Wada, Juejun Hu, Anuradha Agarwal, Lionel C. Kimerling

Proceedings Volume 9891, 98911J (2016) https://doi.org/10.1117/12.2229350

KEYWORDS: Mid-IR, Silicon, Silicon photonics, Sensors, Absorption spectroscopy, Photonic integrated circuits, Sapphire, Lab on a chip

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The mid-Infrared wavelength range (2-20 µm), so-called fingerprint region, contains the very sharp vibrational and rotational resonances of many chemical and biological substances. Thereby, on-chip absorption-spectrometry-based sensors operating in the mid-Infrared (mid-IR) have the potential to perform high-precision, label-free, real-time detection of multiple target molecules within a single sensor, which makes them an ideal technology for the implementation of lab-on-a-chip devices. Benefiting from the great development realized in the telecom field, silicon photonics is poised to deliver ultra-compact efficient and cost-effective devices fabricated at mass scale. In addition, Si is transparent up to 8 µm wavelength, making it an ideal material for the implementation of high-performance mid-IR photonic circuits. The silicon-on-insulator (SOI) technology, typically used in telecom applications, relies on silicon dioxide as bottom insulator. Unfortunately, silicon dioxide absorbs light beyond 3.6 µm, limiting the usability range of the SOI platform for the mid-IR. Silicon-on-sapphire (SOS) has been proposed as an alternative solution that extends the operability region up to 6 µm (sapphire absorption), while providing a high-index contrast. In this context, surface grating couplers have been proved as an efficient means of injecting and extracting light from mid-IR SOS circuits that obviate the need of cleaving sapphire. However, grating couplers typically have a reduced bandwidth, compared with facet coupling solutions such as inverse or sub-wavelength tapers. This feature limits their feasibility for absorption spectroscopy applications that may require monitoring wide wavelength ranges. Interestingly, sub-wavelength engineering can be used to substantially improve grating coupler bandwidth, as demonstrated in devices operating at telecom wavelengths. Here, we report on the development of fiber-to-chip interconnects to ZrF4 optical fibers and integrated SOS circuits with 500 nm thick Si, operating around 3.8 µm wavelength. Results on facet coupling and sub-wavelength engineered grating coupler solutions in the mid-IR regime will be compared.

Proceedings Article | 13 November 2014 Paper

Substrate-blind photonic integration based on high-index glass materials

Hongtao Lin, Lan Li, Yi Zou, Qingyang Du, Okechukwu Ogbuu, Charmayne Smith, Erick Koontz, David Musgraves, Kathleen Richardson, Juejun Hu

Proceedings Volume 9277, 92770T (2014) https://doi.org/10.1117/12.2073972

KEYWORDS: Resonators, Glasses, Waveguides, Graphene, Photonic crystals, Mid-IR, Photonic crystal devices, Bioalcohols, Absorption, Titanium dioxide

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Proceedings Article | 8 March 2014 Paper

ZrO2-TiO2 thin films and resonators for mid-infrared integrated photonics

Feipeng Jiang, Ningyuan Duan, Hongtao Lin, Lan Li, Juejun Hu, Lei Bi, Haipeng Lu, Xiaolong Weng, Jianliang Xie, Longjiang Deng

Proceedings Volume 8988, 89880S (2014) https://doi.org/10.1117/12.2038415

KEYWORDS: Thin films, Waveguides, Zirconium dioxide, Resonators, Absorption, Oxygen, Mid-IR, Integrated photonics, Sputter deposition, Crystals

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Proceedings Article | 8 March 2014 Paper

Chip-to-chip optical interconnects based on flexible integrated photonics

Lan Li, Yi Zou, Hongtao Lin, Juejun Hu, Xiaochen Sun, Ning-Ning Feng, Sylvain Danto, Kathleen Richardson, Tian Gu, Michael Haney

Proceedings Volume 8991, 89910T (2014) https://doi.org/10.1117/12.2037812

KEYWORDS: Waveguides, Optical interconnects, Photonics, Glasses, Packaging, Adhesives, Optical alignment, Laser bonding, Vertical cavity surface emitting lasers, Resonators

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Proceedings Article | 8 March 2014 Paper

Demonstration of high-performance, sub-micron chalcogenide glass photonic devices by thermal nanoimprint

Yi Zou, Loise Moreel, Jie Zhou, Danning Zhang, Hongtao Lin, Lan Li, Qingyang Du, Juejun Hu, Sylvain Danto, Kathleen Richardson, J. David Musgraves, Kevin Dobson, Robert Birkmire

Proceedings Volume 8988, 898806 (2014) https://doi.org/10.1117/12.2040454

KEYWORDS: Resonators, Microrings, Waveguides, Nanoimprint lithography, Photonic devices, Glasses, Chalcogenide glass, Polymers, Silicon, Lithography

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Proceedings Article | 7 March 2014 Paper

Planar chalcogenide glass mid-infrared photonics

Hongtao Lin, Lan Li, Yi Zou, Fei Deng, Chaoying Ni, Sylvain Danto, J. David Musgraves, Kathleen Richardson, Stephen Kozacik, Maciej Murakowski, Dennis Prather, Juejun Hu

Proceedings Volume 8974, 89740D (2014) https://doi.org/10.1117/12.2035688

KEYWORDS: Mid-IR, Waveguides, Chalcogenide glass, Resonators, Transparency, Photonics, Photonic crystals, Mirrors, Integrated optics, Silicon

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Proceedings Article | 12 March 2013 Paper

Chalcogenide glass planar photonics: from mid-IR sensing to 3-D flexible substrate integration

Hongtao Lin, Lan Li, Yi Zou, Okechukwu Ogbuu, Sylvain Danto, J. David Musgraves, Kathleen Richardson, Juejun Hu

Proceedings Volume 8600, 86000K (2013) https://doi.org/10.1117/12.2000683

KEYWORDS: Mid-IR, Resonators, Chalcogenide glass, Waveguides, Photonics, Glasses, Transparency, Silicon, Polymers, Photonic devices

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Proceedings Article | 20 November 2012 Paper

Chalcogenide glass based integrated photonics

Lan Li, Hongtao Lin, Yi Zou, Okechukwu Ogbuu, Sylvain Danto, J. David Musgraves, Kathleen Richardson, Juejun Hu

Proceedings Volume 8564, 85640T (2012) https://doi.org/10.1117/12.2000678

KEYWORDS: Waveguides, Mid-IR, Resonators, Chalcogenide glass, Glasses, Silicon, Transparency, Photonics, Polymers, Integrated photonics

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Showing 5 of 20 publications

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