&lt;title&gt;Diffraction Gratings Ruled And Holographic - A Review&lt;/title&gt;

Lerner, Jeremy M.; Flamand, Jean; Laude, J. P.; Passereau, G.; Thevenon, A.

doi:10.1117/12.965639

Cited by 9 publications

(2 citation statements)

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“…The rotation of the mirror introduces an extra phase difference and thus tunes the wavelength. Similar ideas can be found in the concave gratings [83] and replicated holographic gratings [84][85][86] that sit the grating teeth on a spherical or curved surface so as to focus and diffract the laser beam simultaneously. Some recent works shared this idea in patterning the planar waveguide to form lenses and gratings for tunable lasers, though the tuning is not based on MEMS but on the refractive index change by the injected electrical current [87,88].…”

Section: 33mentioning

confidence: 73%

A review of MEMS external-cavity tunable lasers

Liu¹,

Zhang²

2006

J. Micromech. Microeng.

124

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The paper reviews the state-of-the-art of miniaturized tunable lasers constructed by microelectromechanical systems (MEMS) technology, covering various topics of laser configurations, theoretical studies and some design issues, with primary focus on the uniqueness of MEMS tunable lasers in comparison to conventional opto-mechanical counterparts. Further studies have also been presented to investigate the tuning range and stability in order to provide a deep understanding of the specialities of MEMS lasers in the sense of physics. The introduction of MEMS has endowed two special features to tunable lasers. One is that MEMS facilitates external cavities at very short (<100 µm) and even extremely short length (<10 µm), leading to unusual tuning behaviors and different design concerns. The other is that the photolithography of the MEMS process makes it possible to fabricate gratings/mirrors in arbitrary profiles, which may inspire the innovation of new laser configurations that can only be realized by MEMS technology. With further work on integration and packaging, MEMS lasers would be able to deliver their merits of small size, fast tuning speed, wide tuning range and IC integration compatibility, and to broaden their applications to many fields.

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Section: 33mentioning

confidence: 73%

A review of MEMS external-cavity tunable lasers

Liu¹,

Zhang²

2006

J. Micromech. Microeng.

124

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“…Alternatively, recent research on plasmonic metasurfaces shifts their attention to low-loss dielectric materials to overcome these limitations to deliver multifunctional optical surfaces [4,5]. Like many conventional components, a diffraction grating is one of the most widely used devices in modern optical systems with a wide range of varieties, e.g., blazed grating, concave grating, echelle grating, and holographic grating [6]. In conventional diffraction gratings, the grating period is often longer than the operating wavelength, hence leading to multiple diffraction orders in the transmission or reflection domain.…”

Section: Introductionmentioning

confidence: 99%

Silicon-on-sapphire mid-IR wavefront engineering by using subwavelength grating metasurfaces

et al. 2016

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Subwavelength high-contrast gratings (sub-λ HCGs) were pursued to design mid-IR optical devices based on wavefront engineering. Unlike metallic counterparts, dielectric and semiconductors offer low-loss operation over a wide spectral range. Silicon gratings on sapphire substrate are proposed here as the device platform due to their transparency at near-IR to mid-IR wavelengths. The proposed generic methodology manipulates the wavefront of the reflected wave based on the phase and magnitude of reflectivity for unit cells with different dimensions. To demonstrate the capability of generating an arbitrary wavefront profile, several design examples are shown: (1) a reflective mirror with ∼100% power efficiency and broad bandwidth of >1 μm as reflectivity >90%; (2) a blazed grating with a reflection peak automatically aligned with its 1st diffraction order at 19.5°; (3) a focusing mirror with a focal length of 35 μm and diffraction-limited focus; (4) a sinusoidal phase profile with a periodicity of 8860 nm.

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Diffraction Gratings, Ruled and Holographic

Loewen¹

1983

Applied Optics and Optical Engineering Volume 9

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<title>Diffraction Gratings Ruled And Holographic - A Review</title>

Cited by 9 publications

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A review of MEMS external-cavity tunable lasers

A review of MEMS external-cavity tunable lasers

Silicon-on-sapphire mid-IR wavefront engineering by using subwavelength grating metasurfaces

Diffraction Gratings, Ruled and Holographic

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