Feature issue introduction: mid-infrared optical materials and their device applications by Hu, Juejun, Mawst, Luke, Moss, Steven, Petit, Laeticia, Ting, David

“…In the past few years, there has been a surge of interest in novel mid-IR optical materials as well as their device implementations to address the increasing demands from these applications. …”
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Reconfigurable Parfocal Zoom Metalens by Yang, Fan, Lin, Hung‐I, Shalaginov, Mikhail Y, Stoll, Katherine, An, Sensong, Rivero‐Baleine, Clara, Kang, Myungkoo, Agarwal, Anuradha, Richardson, Kathleen, Zhang, Hualiang, Hu, Juejun, Gu, Tian

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Monolithic chalcogenide glass waveguide integrated interband cascaded laser by Lin, Hongtao, Kim, Chul Soo, Li, Lan, Kim, Mijin, Bewley, William W, Merritt, Charles D, Canedy, Chadwick L, Vurgaftman, Igor, Agarwal, Anu, Richardson, Kathleen, Hu, Juejun, Meyer, Jerry R

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Multi-material heterogeneous integration on a 3-D photonic-CMOS platform by Ranno, Luigi, Sia, Brian Jia Xu, Dao, Khoi, Phuong, Hu, Juejun

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Understanding aging in chalcogenide glass thin films using precision resonant cavity refractometry by Geiger, Sarah J., Du, Qingyang, Huang, Bin, Shalaginov, Mikhail, Michon, Jerome, Lin, Hongtao, Gu, Tian, Yadav, Anupama, Richardson, Kathleen A., Jia, Xinqiao, Hu, Juejun

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Multifunctional Metasurface Design with a Generative Adversarial Network by An, Sensong, Zheng, Bowen, Tang, Hong, Shalaginov, Mikhail Y, Zhou, Li, Li, Hang, Kang, Myungkoo, Richardson, Kathleen A, Gu, Tian, Hu, Juejun, Fowler, Clayton, Zhang, Hualiang

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High-performance graphene-integrated thermo-optic switch: design and experimental validation [Invited] by Li, Junying, Huang, Yizhong, Song, Yi, Li, Lan, Zheng, Hanyu, Wang, Haozhe, Gu, Tian, Richardson, Kathleen, Kong, Jing, Hu, Juejun, Lin, Hongtao

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Tellurene: A Multifunctional Material for Midinfrared Optoelectronics by Deckoff-Jones, Skylar, Wang, Yixiu, Lin, Hongtao, Wu, Wenzhuo, Hu, Juejun

“…The mid-infrared spectral band (2-20 μm) is of significant technological importance for thermal imaging, spectroscopic sensing, and free-space communications. Lack of optical materials compatible with common semiconductor substrates, however, presents a standing hurdle for integrated photonic device development in the mid-infrared domain. …”
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Advances in infrared GRIN: a review of novel materials towards components and devices by Richardson, Kathleen, Kang, Myungkoo, Sisken, Laura, Yadav, Anupama, Blanco, Cesar, Antia, Michael, Novak, Spencer, Smith, Charmayne, Buff, Andy, Lepicard, Antoine, Dussauze, Marc, Schwarz, Casey M., Kuebler, Stephen, Grabill, Chris, Pantano, Carlo, Mayer, Theresa, Pogrebnyakov, Alexej V., Baleine, Clara, Kirk, Andrew, Mensah, Samantha, Driggers, Megan, Hu, Juejun, Lin, Pao-Tai, Agarwal, Anuradha, Li, Cheng, Deng, Weiwei

“…Downloading of the abstract is permitted for personal use only. Novel optical materials capable of advanced functionality in the infrared will enable optical designs that can offer lightweight or small footprint solutions in both planar and bulk optical systems. …”
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New Candidate Multicomponent Chalcogenide Glasses for Supercontinuum Generation by Goncalves, Claudia, Kang, Myungkoo, Sohn, Byoung-Uk, Tan, Dawn T. H., Richardson, Kathleen, Tan, Dawn, Yin, Gufan, Hu, Juejun

“…Keywords: photonics; supercontinuum generation; nonlinear optics; infrared optical materials; chalcogenide glass science…”
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Real-time, in situ probing of gamma radiation damage with packaged integrated photonic chips by Du, Qingyang, Michon, Jerome, Li, Bingzhao, Kita, Derek M., Ma, Danhao, Zuo, Haijie, Yu, Shaoliang, Gu, Tian, Agarwal, Anuradha, Li, Mo, Hu, Juejun

“…Understanding the impact of radiation damage in optical materials and devices is thus a prerequisite to building radiation-hard photonic systems for these applications. …”
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Fabrication and characterization of As[subscript 2]S[subscript 3]/Y[subscript 3]Fe[subscript 5]O[subscript 12] and Y[subscript 3]Fe[subscript 5]O[subscript 12]/SOI strip-loaded wav... by Ross, Caroline A., Kimerling, Lionel C., Hu, Juejun, Bi, Lei

“…These waveguide fabrication techniques offer a compact, low cost and etch-free route for integrating magneto-optical materials on a silicon platform, which may be useful for making future integrated optical isolators and other magneto-optical components.…”
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Laser-induced modification of local refractive index in infrared glass-ceramic films by Mingareev, Ilya, Kang, Myungkoo, Malendevych, Teodor, Yin, Gufan, Hu, Juejun, Richardson, Kathleen, Richardson, Martin

“…Various irradiation and post-processing protocols were implemented to maximize the magnitude of the local refractive index change, and to quantify the evolution of the glass to glass ceramic conversion' on optical material physical properties. Irradiation of films possessing various thicknesses from 1 to 25 μm was performed using area-scan patterns, while the average laser power and the number of scans were varied. …”
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Laser-induced modification of local refractive index in infrared glass-ceramic films by Mingareev, Ilya, Kang, Myungkoo, Malendevych, Teodor, Yin, Gufan, Hu, Juejun, Richardson, Kathleen, Richardson, Martin

“…Various irradiation and post-processing protocols were implemented to maximize the magnitude of the local refractive index change, and to quantify the evolution of the glass to glass ceramic conversion' on optical material physical properties. Irradiation of films possessing various thicknesses from 1 to 25 μm was performed using area-scan patterns, while the average laser power and the number of scans were varied. …”
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