Si-Cong Tian

ORCID: 0009-0001-3610-5993
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Photonic and Optical Devices
  • Semiconductor Lasers and Optical Devices
  • Semiconductor Quantum Structures and Devices
  • Quantum optics and atomic interactions
  • Quantum Information and Cryptography
  • Solid State Laser Technologies
  • Cold Atom Physics and Bose-Einstein Condensates
  • Photonic Crystals and Applications
  • Genomics, phytochemicals, and oxidative stress
  • Quantum and electron transport phenomena
  • Advanced Fiber Laser Technologies
  • Photonic Crystal and Fiber Optics
  • Atomic and Subatomic Physics Research
  • Spectroscopy and Laser Applications
  • Photorefractive and Nonlinear Optics
  • Optical Coatings and Gratings
  • Diet, Metabolism, and Disease
  • Free Radicals and Antioxidants
  • Mechanical and Optical Resonators
  • Random lasers and scattering media
  • Liver Disease Diagnosis and Treatment
  • Quantum Mechanics and Non-Hermitian Physics
  • Nonlinear Photonic Systems
  • Endoplasmic Reticulum Stress and Disease
  • Moringa oleifera research and applications

Changchun Institute of Optics, Fine Mechanics and Physics
2015-2025

Chinese Academy of Sciences
2015-2025

Technische Universität Berlin
2021-2025

Georgi Nadjakov Institute of Solid State Physics
2021-2025

Wenzhou Medical University
2019-2024

University of Wisconsin–Madison
2024

Harbin Institute of Technology
2015-2018

Harbin University
2015-2016

State Key Laboratory of Luminescence and Application
2015

Jilin University
2009-2012

Subambient daytime radiative cooling enables temperatures to passively reach below ambient temperature, even under direct sunlight, by emitting thermal radiation toward outer space. This technology holds promise for numerous exciting applications. However, previous demonstrations of subambient require surfaces that directly face the sky, and these cannot be applied vertical are ubiquitous in real-world scenarios such as buildings vehicles. Here, we demonstrate peak sunlight using a...

10.1126/science.adn2524 article EN Science 2024-11-14

<italic>Lactobacillus</italic>G15 and Q14 alleviated type 2 diabetes through regulation of gut microbiota permeability.

10.1039/c6fo00831c article EN Food & Function 2016-01-01

Sulforaphane (SFN) is reported to reduce the accumulation of lipids. However, underling mechanism remains unclear. In this study, potential SFN improve lipid metabolism investigated through altering mitochondrial function and biogenesis-related mechanisms.The abnormal model was established both in HHL-5 cells rats by feeding a high-fat diet (HFD) for 10 weeks. The current findings suggest that alleviates swelling mitochondria stimulates biogenesis. reduced expression NRF1 TFAM, were reversed...

10.1002/mnfr.201800795 article EN Molecular Nutrition & Food Research 2018-12-22

Abstract Acoustic sensors with ultrahigh sensitivity, broadband response, and high resolution are essential for high-precision nondestructive weak signal detection technology. In this paper, based on the size effect of an ultrahigh-quality ( Q ) calcium fluoride (CaF 2 resonator, a acoustic is detected by dispersive response regime in which acoustic, elastic wave modulates geometry converted to resonance frequency shift. Through structural design sensitivity reaches 11.54 V/Pa at 10 kHz...

10.1038/s41378-023-00540-0 article EN cc-by Microsystems & Nanoengineering 2023-05-17

SFN alleviated IR via the Bacteroides and Lactobacillus -SCFAs–GPR41/43-GLP1 axis protected intestinal mucosal barrier, thereby, reducing inflammatory response.

10.1039/d4fo01059k article EN Food & Function 2024-01-01

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 centers, where optical links with large transmission distances are required. Narrow wavelength-division multiplexing systems demand bit rates and single longitudinal transverse modes. Spatial division through multicore fibers using LW VCSELs is enabling still larger-scale center networks. This review discusses the...

10.3390/photonics10030268 article EN cc-by Photonics 2023-03-03

An asymmetric double semiconductor quantum well is proposed to realize two-dimensional parity-time (PT) symmetry and an electromagnetically induced grating. In such a nontrivial grating with PT symmetry, the incident probe photons can be diffracted selected angles depending on spatial relationship of real imaginary parts refractive index. Such results are due interference mechanism between amplitude phase manipulated by detuning, modulation amplitudes standing wave fields, interaction length...

10.1364/oe.26.032918 article EN cc-by Optics Express 2018-12-03

High power single-mode wafer fused 1550 nm VCSELs with an active region based on InGaAs quantum wells are fabricated. An InP-based optical cavity and two AlGaAs/GaAs distributed Bragg reflector heterostructures were grown by molecular-beam epita oy. The current confinements provided a lateral-structured buried tunnel junction <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\sim ~6~\mu \text{m}$...

10.1109/lpt.2023.3241001 article EN IEEE Photonics Technology Letters 2023-02-01

A scheme for giant enhancement of the Kerr nonlinearity in linear triple quantum dot molecules is proposed. In such a system, tunneling-induced transparency window obtained double splits into two windows, due to coupling with third dot. And most important, can be enhanced by several orders magnitude, compared that generated molecules. With proper detuning tunneling, accompanied vanishing absorption realized, which opens possibility enhance self-phase modulation tunneling controllable...

10.1364/josab.31.001436 article EN Journal of the Optical Society of America B 2014-06-03

Scope To investigate the effect of sulforaphane (SFN) on abnormal lipid metabolism and underlying mechanisms. Methods results Models with are established both in rats human hepatocytes. Hepatic steatosis is detected by hematoxylin eosin oil red O staining. The structure endoplasmic reticulum visualized transmission electron microscopy. expressions X‐box binding protein 1 (XBP1), kinase‐like ER kinase (PERK), sterol regulatory element protein‐1c (SREBP1c), lipogenic enzymes determined...

10.1002/mnfr.201700737 article EN Molecular Nutrition & Food Research 2018-01-30

For long distance optical interconnects, 1.3-μm surface-emitting lasers are key devices. However, the low output power of several milliwatts limits their application. In this study, by introducing a two-dimensional photonic-crystal and using InAs quantum dots as active materials, continuous-wave, 13.3-mW power, wavelength, room-temperature laser is achieved. addition, such device can be operated at high temperatures up to 90 °C. The enhanced results from flat band structure photonic crystal...

10.1038/s41377-019-0214-2 article EN cc-by Light Science & Applications 2019-11-22

We investigate the spectrum of a four-level V-type system. show that spontaneously generated coherence between two closely spaced excited levels produces interference effects in absorption. As result, more transparency windows appear comparing to normal three-level V can also control number be or three just by tuning Rabi frequency coupling field. present an equivalent system without rigorous requirement close-lying observe phenomena. experimentally demonstrate corresponding features...

10.1103/physreva.79.043810 article EN Physical Review A 2009-04-10

The behavior of optical bistability (OB) in linear triple quantum dot molecules (QDMs) using double tunneling coupling by means a unidirectional ring cavity is investigated. and nonlinear susceptibilities the system are also between dots can induce interaction dark resonances, which enhance response system. type, hysteresis loop, threshold OB be controlled intensity detuning probe field. Our results give insights for future experiments applications optics QDMs.

10.1364/josab.31.002681 article EN Journal of the Optical Society of America B 2014-10-13

Scope The effects of sulforaphane (SFN) on the maturation lipid droplets (LDs)—the storage units for free fatty acids and sterols as triacylglycerides (TAG) cholesterol esters (CE)—are far from being understood, despite fact that SFN is known to be beneficial ameliorating metabolism disorders. Methods Results High‐fat‐intake models are established in both HHL‐5 hepatocytes rodents. numbers sizes LDs decreased by SFN. accumulation core components (TAG &amp; CE) reduced expression their key...

10.1002/mnfr.201900183 article EN Molecular Nutrition & Food Research 2019-07-20

Scope Mitochondria‐associated membrane (MAM) connects endoplasmic reticulum (ER) and mitochondria plays a significant role in lipid metabolism Ca 2+ homeostasis. Albeit sulforaphane (SFN) shows potential ameliorating excessive fat accumulation mitochondrial function; whether MAM is target of SFN its underlying mechanisms are still unclear. Methods Results High‐fat‐intake models established both vivo vitro. widens the distance between ER down‐regulates tether protein mitofusin‐2. reverses...

10.1002/mnfr.202001076 article EN Molecular Nutrition & Food Research 2021-04-30

We demonstrate major advancements in the energy efficiency of single mode, oxide-confined, vertical-cavity surface-emitting lasers at 940 nm wavelength, being promising for optical interconnects. were able to show error-free operation (Bit Error Rate 10exp -12) 50 Gb/s and 60 Gb/s, Non-Return-to-Zero modulation across 100 m multimode fiber with an 98/168 fJ/bit, respectively. These are presently most energy-efficient directly modulated light sources available data transmission.

10.1063/5.0247380 article EN Applied Physics Letters 2025-03-01

This study presents the synthesis of manganese molybdenum tetraoxide (MnMoO4)-based nanoparticles and then their experimental demonstration as saturable absorbers (SAs) in erbium-doped fiber lasers (EDFLs). The MnMoO4 were prepared embedded between ferrule to act an SA generate Q-switched pulsed operation EDFLs. For characterization, scanning electron microscopy (SEM) was employed confirm particle size nanoparticles, optical properties further investigated by measuring modulation depth...

10.3390/photonics12050474 article EN cc-by Photonics 2025-05-12

High power and high brightness mid-infrared GaSb based lasers are desired for many applications, however, the lateral divergence is still influence factor practical application. In this paper, a simple effective approach on fishbone-shape microstructure was proposed, improvement both output of 2 μm broad-area demonstrated. The reduced averagely by 55% 15.8° 95% content realized. continuous-wave emission increased about 19% with decreased threshold current. other merits unchanged intrinsic...

10.1364/oe.24.007246 article EN cc-by Optics Express 2016-03-25

Abstract For common plasmonic structures, it is difficult to considerate both the abilities of confining light and reducing loss. Here, two multilayer structures comprised five alternate Al Si layers are demonstrated. First, gratings with near‐infrared dual narrowband peaks given in spectrum excited by Fabry–Perot resonance. Through investigating modes electric field distributions, frequency‐sensitivity, linear designable characteristic its working bands clarified. Second, trench containing...

10.1002/adom.201700496 article EN Advanced Optical Materials 2017-09-18
Coming Soon ...