Recent advances in high-contrast metastructures, metasurfaces, and photonic crystals

P Qiao, W Yang, CJ Chang-Hasnain - Advances in Optics and …, 2018 - opg.optica.org
In the past decade, the research field that uses arrays of high-index-contrast near-
wavelength dielectric structures on flat surfaces, known as high-contrast metastructures …

Self-calibrating programmable photonic integrated circuits

X Xu, G Ren, T Feleppa, X Liu, A Boes, A Mitchell… - Nature …, 2022 - nature.com
Programmable photonic integrated circuits (PICs) are dense assemblies of tunable elements
that provide flexible reconfigurability to enable different functions to be selected; however …

Long-wavelength VCSELs: status and prospects

A Babichev, S Blokhin, E Kolodeznyi, L Karachinsky… - Photonics, 2023 - mdpi.com
Single-mode long-wavelength (LW) vertical-cavity surface-emitting lasers (VCSELs) present
an inexpensive alternative to DFB-lasers for data communication in next-generation giga …

Broadband continuous single-mode tuning of a short-cavity quantum-cascade VECSEL

CA Curwen, JL Reno, BS Williams - Nature Photonics, 2019 - nature.com
Changing the length of a laser cavity is a simple technique for continuously tuning the
wavelength of a laser but is rarely used for broad fractional tuning, with a notable exception …

A photoacoustic patch for three-dimensional imaging of hemoglobin and core temperature

X Gao, X Chen, H Hu, X Wang, W Yue, J Mu… - Nature …, 2022 - nature.com
Electronic patches, based on various mechanisms, allow continuous and noninvasive
monitoring of biomolecules on the skin surface. However, to date, such devices are unable …

Surgical microscope integrated MHz SS-OCT with live volumetric visualization

A Britten, P Matten, J Weiss… - Biomedical Optics …, 2023 - opg.optica.org
Intraoperative optical coherence tomography is still not overly pervasive in routine
ophthalmic surgery, despite evident clinical benefits. That is because today's spectral …

Detector-integrated vertical-cavity surface-emitting laser with a movable high-contrast grating mirror

M Wang, H Peng, C Hao, X Zhou, W Zheng… - Photonics Research, 2024 - opg.optica.org
In this paper, we present a detector-integrated vertical-cavity surface-emitting laser (VCSEL)
with a movable high-contrast grating (HCG) mirror in an nipin manner. The detector …

Video-rate high-precision time-frequency multiplexed 3D coherent ranging

R Qian, KC Zhou, J Zhang, C Viehland… - Nature …, 2022 - nature.com
Frequency-modulated continuous wave (FMCW) light detection and ranging (LiDAR) is an
emerging 3D ranging technology that offers high sensitivity and ranging precision. Due to …

Monolithic high-contrast metastructure for beam-sha** VCSELs

K Li, Y Rao, C Chase, W Yang, CJ Chang-Hasnain - Optica, 2018 - opg.optica.org
We report a high-contrast metastructure (HCM) mirror as a novel beam-sha** element for
vertical-cavity surface-emitting lasers (VCSELs). The metastructure is monolithically …

Analysis of the performance of wdm-cdm bragg grating interrogation system with high-contrast grating vcsel

K Markowski, J Bojarczuk… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
This article shows a novel approach for Bragg gratings interrogation, based on vertical-
cavity surface-emitting laser with high-contrast grating cavity. It is shown that with such a …