The record power conversion efficiency of small-area perovskite solar cells has impressively exceeded 25%。 For commercial application, a large-area device is the necessary next step。 Recently, significant progress has been achieved in fabricating efficient large-area perovskite solar cells。 In this review, we will summarize recent achievements in large-area perovskite solar cel

We report on a high-power Ho:YAG single-crystal fiber (SCF) laser inband pumped by a high-brightness Tm-fiber laser at 1908 nm。 The Ho:YAG SCF grown by the micro-pulling-down technique exhibits a propagation loss of $0。05\pm 0。005~\text{cm}^{-1}$ at $2。09~\unicode[STIX]{x03BC}\text{m}$。 A continuous-wave output power of 35。2 W is achieved with a slope efficiency of 42。7%, which

We present a study of laser-driven ion acceleration with micrometre and sub-micrometre thick targets, which focuses on the enhancement of the maximum proton energy and the total number of accelerated particles at the PHELIX facility. Using laser pulses with a nanosecond temporal contrast of up to $10^{-12}$ and an intensity of the order of $10^{20}~\text{W}/\text{cm}^{2}$, prot

All-optical modulation based on the photothermal effect of two-dimensional (2D) materials shows great promise for all-optical signal processing and communication. In this work, an all-optical modulator with a 2D PtSe2-on-silicon structure based on a microring resonator is proposed and demonstrated utilizing the photothermal effect of PtSe2. A tuning efficiency of 0.0040 nm 

PDF全文 HTML全文 Photonics Research | 2020,8(07):1189-1196

Optical frequency combs, a revolutionary light source characterized by discrete and equally spaced frequencies, are usually regarded as a cornerstone for advanced frequency metrology, precision spectroscopy, high-speed communication, distance ranging, molecule detection, and many others。 Due to the rapid development of micro/nanofabrication technology, breakthroughs in the qual

PDF全文 HTML全文 Advanced Photonics | 2020,2(03):034001-34001

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