期刊: OPTICS LETTERS, 2021; 46 (7)
Owing to their robustness against diffraction, Bessel beams (BBs) offer special advantages in various applications. To enhance their applicability, we......
期刊: OPTICS LETTERS, 2021; 46 (7)
We propose and numerically investigate a chaotic optical coherent secure communication scheme, which supports long-haul secure transmission for signal......
期刊: OPTICS LETTERS, 2021; 46 (8)
Adaptive optics is a key technology for ground-based optical and infrared astronomy, providing high angular resolution and sensitivity. Systems employ......
期刊: OPTICS LETTERS, 2021; 46 (10)
We report a compact, self-starting dispersion-managed mode-locked thulium-doped fiber oscillator that delivers 2.6 nJ pulses at 2 mu m with a repetiti......
期刊: OPTICS LETTERS, 2021; 46 (11)
A special open-cavity Mach-Zehnder salinity sensor is presented and verified in this Letter, which has obvious advantages in salinity sensitivity and ......
期刊: OPTICS LETTERS, 2021; 46 (13)
Deep learning (DL) has been used to successfully solve numerous problems and challenges in a wide range of fields. The architecture of DL is complex a......
期刊: OPTICS LETTERS, 2021; 46 (13)
Molybdenum (Mo)-doped black silicon (Si) is obtained. by using femtosecond. laser irradiation. The concentration of Mo atoms at the depth from 10 to 2......
期刊: OPTICS LETTERS, 2021; 46 (14)
In this Letter, an imaging spectrometer in which a freeform concave grating is the only optical component in the system is introduced. The degrees of ......
期刊: OPTICS LETTERS, 2021; 46 (14)
The mode converter (MC) is one of the key components for mode division multiplexing (MDM). Here, we experimentally demonstrate an all-fiber long perio......
期刊: OPTICS LETTERS, 2021; 46 (14)
We experimentally demonstrated a geometric shaped (GS) 64-ary amplitude phase shift keying (64-APSK) eigenvalue transmission. The signal is modulated ......
期刊: OPTICS LETTERS, 2021; 46 (15)
Owing to the unique features in intensity and phase structures, optical vortex lattices (OVLs) have attracted intensive attention and promoted various......
期刊: OPTICS LETTERS, 2021; 46 (16)
Hyperspectral imagery often suffers from the degradation of spatial, spectral, or temporal resolution due to the limitations of hyperspectral imaging ......
期刊: OPTICS LETTERS, 2021; 46 (17)
A Raman sensor based on a cavity-enhanced Ag nanoparticle (AgNP) decorated tapered fiber is proposed. Its Raman enhancements are mainly caused by the ......
期刊: OPTICS LETTERS, 2021; 46 (17)
Currently, metal halide perovskite films still encounter the issues of inferior film quality and interfacial electrical properties when they were cons......
期刊: OPTICS LETTERS, 2021; 46 (17)
A high-performance photonic spin Hall effect is demonstrated in an anisotropic epsilon-near-zero (ENZ) metamaterial based on the wave-vector-varying P......