Double-lattice photonic-crystal resonators enabling high-brightness semiconductor lasers with symmetric narrow-divergence beams

Yoshida, Masahiro; Zoysa, Menaka De; Ishizaki, Kenji; Tanaka, Yoshinori; Kawasaki, Masato; Hatsuda, Ranko; Song, Biao; Gelleta, John; Noda, Susumu

doi:10.1038/s41563-018-0242-y

Cited by 214 publications

(110 citation statements)

References 30 publications

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“…In this paper, the management for multibands EMWs range from microwave to UV by bionic moth‐eye structure was studied for the first time. The microwave absorption mechanism of bionic structure was analyzed by topological theory that found a new model of absorption mechanism, the pioneering technique of MM design with multibands EMWs manipulation presented here enables a new paradigm on the photonic devices, and has broad application prospects in military stealth technology, sensing, photovoltaics, photodetectors, UV‐shielding, photonic topological insulators, and invisibility cloak fields, etc.…”

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confidence: 99%

Bioinspired Metamaterials: Multibands Electromagnetic Wave Adaptability and Hydrophobic Characteristics

Huang

Duan

Dai

et al. 2019

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the light-responsive properties also have excellent adaptability to the environment. [7] Under the inspiration of these controllable optical properties, a variety of advanced material systems have been proposed significantly. [7,8] However, researchers were simply concentrated in a specific waveband due to the great difficulty to achieve the compatibility of multispectral properties, which greatly hinders advance science and the application fields expanding of novel photonic materials. For example, in order to avoid the detection of microwave radar, infrared detector, and visual observation, the stealth materials on military armament have been separately developed during microwave, infrared, and visible light range; [9][10][11] but the above stealth properties were difficult to be compatible in one weapon, thus, the problem of perfect stealth (stealth during full wavebands) is still not solved to date. Moreover, the material degradation by ultraviolet (UV) radiation also needs to be settled urgently because the weapons are exposed to sunlight all year round. Although metamaterials (MMs) researchers have conducted multibands studies, [12] such as optically transparent microwave absorbing materials, [13] multispectral absorption MMs, [14] and multibands resonators, [15] etc., only two or three bands were involved, and the multibands compatibility has not been deeply explored. When devices worked in real environments, dust particles accumulated on its surface over time, which would have an adverse effect on its light manipulation performance. In order to avoid this problem, it is desirable to integrate a self-cleaning ability induced by hydrophobic property of material into the equipment. [16] In this context, a hierarchical structure model of moth compound eye that might manipulate multibands EMWs was found here, as shown in Figure 1a. [17,18] This is a noctuid moth living in Heilongjiang Province of China; the hierarchical and sub-wavelength structures that are arranged in a highly ordered array of its eye surface could suppress the reflection of light to avoid detection by nocturnal predators and to see clearly in darkness, which is based on rigorous coupled wave analysis (RCWA) and finite difference time domain (FDTD) methods, [19] as well as relative research on moth eye model. [18,20] This feature makes the moth-eye model one of the most effective antireflective structures in nature. Although various photonic devices inspired by natural materials have been developed, there is no research focusing on multibands adaptability, whichis not conducive to the advancement of materials science. Herein, inspired by the moth eye surface model, state-of-the-art hierarchical metamaterials (MMs) used as tunable devices in multispectral electromagnetic-waves (EMWs) frequency range, from microwave to ultraviolet (UV), are designed and prepared. Experimentally, the robust broad bandwidth of microwave absorption greater than 90% (reflection loss (RL) < −10 dB) covering almost entire X and Ku bands (8.04-17.88 GHz) under a de...

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confidence: 99%

Bioinspired Metamaterials: Multibands Electromagnetic Wave Adaptability and Hydrophobic Characteristics

Huang

Duan

Dai

et al. 2019

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“…The device area can be modified for a better balance between the lasing threshold and the radiation efficiency. The PhC structure can be optimized to reduce the |κ 1D L| and effectively flatten the in-plane mode profile [19]. Furthermore, anti-reflection coating on the substrate surface will also increase the emission efficiency.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 2(c) shows the coupling diagram of these Bloch waves in the momentum space of the photonic crystal. There are two major coupling mechanisms among them: the 180 • 1D coupling κ 1D and the 90 • 2D coupling κ 2D [4,19]. The κ 1D is intrinsically similar to the coupling strength in conventional distributed-feedback lasers [20,21], whereas the κ 2D is a unique property of the 2D photonic crystal structure [19,22].…”

Section: Design and Fabricationmentioning

confidence: 99%

“…Besides, the large |κ 1D L| might compact the in-plane intensity envelope of the fundamental mode, leading to a divergent surface-emitting beam. In the future, the design can be improved by maintaining |κ 2D L| and meanwhile suppressing |κ 1D L|, towards the case where |κ 1D L| is considerably smaller than |κ 2D L| [19]. The surface-emitting far-field pattern is shown in Fig.…”

Section: Design and Fabricationmentioning

confidence: 99%

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Large area photonic crystal quantum cascade laser with 5 W surface-emitting power

et al. 2019

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Room temperature surface emission is realized on a large area (1.5 mm × 1.5 mm) photonic crystal quantum cascade laser (PhC-QCL) driven under pulsed mode, at the wavelength around 8.75 µm. By introducing in-plane asymmetry to the pillar shape and optimizing the current injection with a grid-like window contact, the maximum peak power of the PhC-QCL is up to 5 W. The surface emitting beam has a crossing shape with 10 • divergence.

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“…As new semiconductor lasers that principally enable the realization of high brightness, photonic-crystal surface-emitting lasers (PCSELs), which utilize the band-edge resonant effect and enable large-area coherent oscillation, have attracted considerable attention [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. The usage of band-edge resonance was proposed almost simultaneously and separately by our and other groups in 1999 [1,18].…”

Section: Introductionmentioning

confidence: 99%

Progress in Photonic-Crystal Surface-Emitting Lasers

2019

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Photonic-crystal surface-emitting lasers (PCSELs) have attracted considerable attention as a novel semiconductor laser that surpasses traditional semiconductor lasers. In this review article, we review the current progress of PCSELs, including the demonstration of large-area coherent oscillation, the control of beam patterns, the demonstration of beam steering, and the realization of watt-class and high-beam-quality operation. Furthermore, we show very recent progress in the exploration of high brightness of more than 300 MW cm−2 sr−1, obtained with a high output power of about 10 W while maintaining a high beam quality M2 ~ 2. The PCSELs with such high performances are expected to be applied to a variety of fields, such as laser-based material processing, optical sensing (light-detection and ranging (LiDAR)), and lighting, as they retain the benefits of compact and high-efficiency semiconductor lasers.

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Double-lattice photonic-crystal resonators enabling high-brightness semiconductor lasers with symmetric narrow-divergence beams

Cited by 214 publications

References 30 publications

Bioinspired Metamaterials: Multibands Electromagnetic Wave Adaptability and Hydrophobic Characteristics

Bioinspired Metamaterials: Multibands Electromagnetic Wave Adaptability and Hydrophobic Characteristics

Large area photonic crystal quantum cascade laser with 5 W surface-emitting power

Progress in Photonic-Crystal Surface-Emitting Lasers

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