446 citations · 1.3k across the 25 of their papers we have counts for
25 papers
High resolution meta-stereomicroscope based on birefringent meta-optics
Liheng Yan, Haowen Liang, Emiliano R. Martins +5
Achieving both high lateral and high depth resolution is a longstanding goal in stereomicroscopy. Although meta-optics have revolutionized lens design by alleviating the physical c…
Experimental demonstration of genuine quantum information transmission through completely depolarizing channels in a superposition of cyclic orders
Yaxin Wang, Linxiang Zhou, Tianfeng Feng +6
A major challenge in quantum communication is addressing the negative effects of noise on channel capacity, especially for completely depolarizing channels, where information trans…
Pulse Compression by an Optical Push Broom On a Chip
Boyi Zhang, Maurice Pfeiffer, Mahmoud A. Gaafar +5
In this study, we report a first experimental demonstration of pulse compression by a gradual refractive index front moving in a periodically modulated silicon waveguide, the so-ca…
High Numerical Aperture and Broadband Achromatic Flat Lens
Jingen Lin, Jinbei Chen, Jianchao Zhang +3
Flat lenses have shown promising applications in miniaturized and ultracompact lightweight optical systems. However, it has been a great challenge in simultaneously achieving broad…
A room-temperature moiré interlayer exciton laser
Qiaoling Lin, Hanlin Fang, Yuanda Liu +10
Moiré superlattices in van der Waals heterostructures offer highly tunable quantum systems with emergent electronic and excitonic properties such as superconductivity, topological…
Compound Super-oscillation Lens for Reflective Confocal Imaging
Pengcheng Zheng, Zhaoxiang Zhu, Xiangcan Pei +5
The super-oscillation lens (SOL) can achieve super-resolution focusing but have to trade-off with weaker hotspots and higher sidebands. We propose a single compound SOL to achieve…
Correction of aberrations via polarization in single layer metalenses
Augusto Martins, Kezheng Li, Guilherme S. Arruda +6
The correction of multiple aberrations in an optical system requires different optical elements, which increases its cost and complexity. Metasurfaces hold great promise to providi…
Metalenses with polarization-independent adaptive nano-antennas
Jianchao Zhang, Haowen Liang, Yong Long +8
Metalens research has made major advances in recent years. These advances rely on the simple design principle of arranging meta-atoms in regular arrays to create an arbitrary phase…
Optical Push Broom On a Chip
Mahmoud A. Gaafar, He Li, Xinlun Cai +3
Here we report the first experimental demonstration of light trapping by a refractive index front in a silicon waveguide, the optical push broom effect. The front generated by a fa…
Room temperature nanocavity laser with interlayer excitons in 2D heterostructures
Yuanda Liu, Hanlin Fang, Abdullah Rasmita +7
Atomically thin layered two dimensional (2D) material has provided a rich library for both fundamental research and device applications. One of the special advantages is that, band…
Fano resonance lineshapes in a waveguide-microring structure enabled by an air-hole
Linpeng Gu, Liang Fang, Hanlin Fang +5
We propose and demonstrate, by simply inserting an air-hole in the waveguide side-coupling with a microring resonator (MRR), the transmission spectrum presents Fano lineshapes at a…
Second harmonic and sum-frequency generations from a silicon metasurface integrated with a two-dimensional material
Qingchen Yuan, Liang Fang, Hanlin Fang +5
Silicon-based nonlinear metasurfaces were implemented only with third-order nonlinearity due to the crystal centrosymmetry and the efficiencies are considerably low, which hinders…
A solid-state entangled photon pair source with high brightness and indistinguishability
Jin Liu, Rongbin Su, Yuming Wei +8
The generation of high-quality entangled photon pairs has been being a long-sought goal in modern quantum communication and computation. To date, the most widely-used entangled pho…
A compact structure for realizing Lorentzian, Fano and EIT resonance lineshapes in a microring resonator
Linpeng Gu, Hanlin Fang, Juntao Li +4
Microring resonators, as a fundamental building block of photonic integrated circuits, have been well developed into numerous functional devices, whose performances are strongly de…
Multiple optical frequency-conversions in few-layer GaSe assisted by a photonic crystal cavity
Liang Fang, Qingchen Yuan, Hanlin Fang +6
While two-dimensional (2D) materials have intriguing second-order nonlinearities with ultrahigh coefficient and electrical tunability, their atomic layer thicknesses hinder explora…
An Ultra-high Numerical Aperture Metalens at Visible Wavelengths
Haowen Liang, Qiaoling Lin, Xiangsheng Xie +8
We demonstrate a metalens with NA = 0.98 in air, a bandwidth (FWHM) of 274 nm and a focusing efficiency of 67% at 532 nm wavelength, which is close to the transmission performance…
1305 nm MoTe2-on-silicon Laser
Hanlin Fang, Jin Liu, Hongji Li +6
The missing piece in the jigsaw of silicon photonics is a light source that can be easily incorporated into the standard silicon fabrication process. Recent advances in the develop…
Highly effective relativistic free carrier plasma mirror confined within a silicon slow light photonic crystal waveguide
Mahmoud A. Gaafar, Dirk Jalas, Liam OFaolain +4
Reflection at relativistically moving plasma mirrors is a well-known approach for frequency conversion as an alternative to nonlinear techniques. A key issue with plasma mirrors is…
White light emission from silicon nanoparticles
Chengyun Zhang, Yi Xu, Jin Liu +7
As one of the most important semiconductors, silicon (Si) has been used to fabricate electronic devices, waveguides, detectors, and solar cells etc. However, its indirect bandgap h…
Efficient silicon metasurfaces for visible light
Zhenpeng Zhou, Juntao Li, Rongbin Su +9
Dielectric metasurfaces require high refractive index contrast materials for optimum performance. This requirement imposes a severe restraint; devices have either been demonstrated…
Control of the stability and soliton formation of dipole moments in a nonlinear plasmonic finite nanoparticle array
Zhijie Mai, Shenhe Fu, Yongyao Li +3
We perform numerical analysis of a finite nanoparticle array, in which the transversal dipolar polarizations are excited by a homogenous optical field. Considering the linearly lon…
Ultra-compact optical auto-correlator based on slow-light enhanced third harmonic generation in a silicon photonic crystal waveguide
Christelle Monat, Christian Grillet, Matthew Collins +8
The ability to use coherent light for material science and applications is directly linked to our ability to measure short optical pulses. While free-space optical methods are well…
Buffering and Trapping Ultrashort Optical Pulses in Concatenated Bragg Gratings
Shenhe Fu, Yikun Liu, Yongyao Li +4
Strong retardation of ultrashort optical pulses, including their deceleration and stoppage in the form of Bragg solitons in a cascaded Bragg-grating (BG) structure, is proposed. Th…
Characteristics of Correlated Photon Pairs Generated in Ultra-compact Silicon Slow-light Photonic Crystal Waveguides
Chunle Xiong, Christelle Monat, Matthew J. Collins +8
We report the characterization of correlated photon pairs generated in dispersion-engineered silicon slow-light photonic crystal waveguides pumped by picosecond pulses. We found th…