2024 Vol. 5, No. 2

Article
Motion-copying method with symbol sequence-based phase switch control for intelligent optical manufacturing
Yutang Wang, Dapeng Tian, Haixiang Hu, Yan Li, Shiquan Ni
Published. 2024, 5(2) : 155-167 doi: 10.37188/lam.2024.012

A motion-copying system with a symbol-sequence-based phase switch control (SSPSC) scheme is developed for intelligent optical manufacturing. It accomplishes the transfer and reproduction of expert skills with high consistency and adaptability.

All-silicon low-loss THz temporal differentiator based on microring waveguide resonator platform
Yunjie Rui, Shuyu Zhou, Xuecou Tu, Xu Yan, Bingnan Yan, et al.
Published. 2024, 5(2) : 168-177 doi: 10.37188/lam.2024.017

Microring resonators have been widely used in passive optical devices such as wavelength division multiplexers, differentiators, and integrators. Research on terahertz (THz) components has been accelerated by these photonics technologies. Compact and...

Differential mode-gain equalization via femtosecond laser micromachining-induced refractive index tailoring
Cong Zhang, Senyu Zhang, Yan Zeng, Yue Wang, Meng Xiang, et al.
Published. 2024, 5(2) : 178-186 doi: 10.37188/lam.2024.014

Differential mode gain equalization arising from different transverse mode profiles within few-mode fiber can be greatly mitigated through controllable femtosecond laser-induced refractive index modulation.


Breaking the speed limitation of wavemeter through spectra-space-time mapping
Zheng Gao, Ting Jiang, Mingming Zhang, Yuxuan Xiong, Hao Wu, et al.
Published. 2024, 4(2) : 187-194 doi: 10.37188/lam.2024.013

Speckle patterns generated by the intermodal interference of multimode fibers enable accurate broadband wavelength measurements. However, the measurement speed is limited by the frame rate of the camera that captures the patterns. We propose a compac...

Accuracy verification methodology for computer-generated hologram used for testing a 3.5-meter mirror based on an equivalent element
Kai Xu, Haixiang Hu, Xin Zhang, Hongda Wei, Zhiyu Zhang, et al.
Published. 2024, 5(2) : 195-203 doi: 10.37188/lam.2024.025

Interferometry with computer-generated holograms (CGHs) is a unique solution for the highly accurate testing of large-aperture aspheric mirrors. However, no direct testing method for quantifying the measurement accuracy of CGHs has been developed. In...

3D micro-devices for enhancing the lateral resolution in optical microscopy
Gordon Zyla, Göran Maconi, Anton Nolvi, Jan Marx, Dimitra Ladika, et al.
Published. 2024, 5(2) : 204-217 doi: 10.37188/lam.2024.019

We introduce the fabrication of a 3D micro-device for optical microscopy, utilizing ultrafast light. This 3D micro-device enables the enhancement of lateral resolution beyond that achievable with conventional optics.

Single-shot 3D incoherent imaging with diffuser endoscopy
Julian Lich, Tom Glosemeyer, Jürgen Czarske, Robert Kuschmierz
Published. 2024, 5(2) : 218-228 doi: 10.37188/lam.2024.015

Minimally invasive endoscopy offers a high potential for biomedical imaging applications. However, conventional fiberoptic endoscopes require lens systems which are not suitable for real-time 3D imaging. Instead, a diffuser is utilized for passively ...

Laser speckle grayscale lithography: a new tool for fabricating highly sensitive flexible capacitive pressure sensors
Yong Zhou, Kun Wang, Junkun Mao, Yifei Ma, Mei Wang, et al.
Published. 2024, 5(2) : 229-240 doi: 10.37188/lam.2024.016

A laser speckle grayscale lithography system was proposed for fabricating random conical array microstructures. The microstructures were used to enhance the sensitivity of flexible capacitive pressure sensors.

Ultrafast laser-induced decomposition for selective activation of GaAs
Ke-Mi Xu, Chao Liu, Lei Wang, Feng-Chun Pang, Xin-Jing Zhao, et al.
Published. 2024, 5(2) : 241-248 doi: 10.37188/lam.2024.026

The manipulation of micro/nanostructures to customise their inherent material characteristics has garnered considerable attention. In this study, we present the selective activation of gallium arsenide (GaAs) via ultrafast laser-induced decomposition...

Functional plastic films: nano-engineered composite based flexible microwave antennas with near-unity relative visible transmittance
Cheng Zhang, Liang Zhu, Chengang Ji, Zhilu Ye, Nabeel Alsaab, et al.
Published. 2024, 5(2) : 249-259 doi: 10.37188/lam.2024.036

Ultrathin silver-based nanocomposite enables the future of optically transparent antennas and wireless communications

Parallel fabrication of silica optical microfibers and nanofibers
Hubiao Fang, Yu Xie, Zipei Yuan, Dawei Cai, Jianbin Zhang, et al.
Published. 2024, 5(2) : 260-268 doi: 10.37188/lam.2024.020

By optimizing the heating and drawing conditions, we demonstrate a parallel-fabrication approach to simultaneously drawing multiple (up to 20) high-quality glass optical micro/nanofibers with almost identical parameters.


A shoe-box-sized 3D laser nanoprinter based on two-step absorption
Tobias Messer, Michael Hippe, Jingya (Lilyn) Gao, Andreas Naber, Martin Wegener
Published. 2024, 5(2) : 269-276 doi: 10.37188/lam.2024.027

3D laser nanoprinters are widespread, yet large and expensive. Here, a shoe-box sized system is introduced using two-step absorption, a continuous-wave laser diode, and a MEMS laser scanner.