Thermally controlled femtosecond pulse shaping using metasurface based optical filters

Rahimi, Eesa; Şendur, Kürşat

doi:10.1515/nanoph-2017-0089

Cited by 9 publications

(5 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Most of the reports on wavefront engineering using metasurfaces are limited to the spatial domain. Recently, efforts have been made to use metasurfaces to tailor the temporal response of the ultrafast optical pulse for pulse shaping and compression [62,[403][404][405][406][407][408]. The most common technique for pulse shaping employs several different programmable mask or SLM technologies and an acousto-optic dispersive filter [408][409][410][411][412][413][414].…”

Section: Prospective Applications With Temporal and Emission Controls...mentioning

confidence: 99%

“…Recently, efforts have been made to use metasurfaces to tailor the temporal response of the ultrafast optical pulse for pulse shaping and compression [62,[403][404][405][406][407][408]. The most common technique for pulse shaping employs several different programmable mask or SLM technologies and an acousto-optic dispersive filter [408][409][410][411][412][413][414]. However, the SLM techniques have slow response, and the number of control pixels is limited by the interconnect due to the difficulty in integrating more than few hundred separated electrode connections in the optically active region.…”

Section: Prospective Applications With Temporal and Emission Controls...mentioning

confidence: 99%

See 1 more Smart Citation

Active optical metasurfaces: comprehensive review on physics, mechanisms, and prospective applications

et al. 2022

View full text Add to dashboard Cite

Optical metasurfaces with subwavelength thickness hold considerable promise for future advances in fundamental optics and novel optical applications due to their unprecedented ability to control the phase, amplitude, and polarization of transmitted, reflected, and diffracted light. Introducing active functionalities to optical metasurfaces is an essential step to the development of next-generation flat optical components and devices. During the last few years, many attempts have been made to develop tunable optical metasurfaces with dynamic control of optical properties (e.g., amplitude, phase, polarization, spatial/spectral/temporal responses) and early-stage device functions (e.g., beam steering, tunable focusing, tunable color filters/absorber, dynamic hologram, etc) based on a variety of novel active materials and tunable mechanisms. These recently-developed active metasurfaces show significant promise for practical applications, but significant challenges still remain. In this review, a comprehensive overview of recently-reported tunable metasurfaces is provided which focuses on the ten major tunable metasurface mechanisms. For each type of mechanism, the performance metrics on the reported tunable metasurface are outlined, and the capabilities/limitations of each mechanism and its potential for various photonic applications are compared and summarized. This review concludes with discussion of several prospective applications, emerging technologies, and research directions based on the use of tunable optical metasurfaces. We anticipate significant new advances when the tunable mechanisms are further developed in the coming years.

show abstract

Section: Prospective Applications With Temporal and Emission Controls...mentioning

confidence: 99%

Section: Prospective Applications With Temporal and Emission Controls...mentioning

confidence: 99%

Active optical metasurfaces: comprehensive review on physics, mechanisms, and prospective applications

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Electric current signal controlled continuous resonant wavelength shift, millisecond reflection switching, and dynamic imaging were observed in the near‐infrared range. Working as reconfigurable optical filters, metasurfaces integrated with VO 2 are also proposed to shape femtosecond optical pulse through Joule heating based phase transition control …”

Section: Phase Change Materialsmentioning

confidence: 99%

Recent Progress in Active Optical Metasurfaces

Kang

Jenkins

Werner

2019

Advanced Optical Materials

154

View full text Add to dashboard Cite

Evolving from metamaterials, optical metasurfaces not only inherit their unprecedented flexibility in tailoring light–matter interaction but also the generally fixed response determined by the metaatoms' geometries—an undesirable property that hinders the development of practical metadevices. Consequently, novel optical metasurfaces that can be tuned in an active manner are intensively studied in recent years. Due to their optically thin structures, optical metasurfaces present unique characteristics in the realization of dynamic tuning. In this review, a detailed summary of the recent advances in active optical metasurfaces is provided including discussions reviewing a variety of active materials and approaches that enable faster, stronger, and more accurate tuning. Beyond facilitating practical metadevices, studies of active metasurfaces have, and will continue to deepen the understandings of the interaction between light and nanostructured photonic architectures and to promote the development of nanofabrication techniques involving high‐complexity.

show abstract

“…A high refractive index contrast in SOI-based structures makes it possible to reduce the overall footprint of the sensor to just a few microns [19,20] by actively confining optical modes. Similarly, there is an increasing use of phase change materials (PCMs) in the integrated optical devices [21,22]. In addition to their relevance with CMOS fabrication techniques, they are also capable of broadband operations [23,24].…”

Section: Introductionmentioning

confidence: 99%

Broadband-Tunable Vanadium Dioxide (VO2)-Based Linear Optical Cavity Sensor

Ayaz,

Balazadeh Koucheh,

Sendur

2024

Nanomaterials

View full text Add to dashboard Cite

Sensors fabricated by using a silicon-on-insulator (SOI) platform provide promising solutions to issues such as size, power consumption, wavelength-specific nature of end reflectors and difficulty to detect ternary mixture. To address these limitations, we proposed and investigated a broadband-thermally tunable vanadium dioxide (VO2)-based linear optical cavity sensor model using a finite element method. The proposed structure consists of a silicon wire waveguide on a silicon-on-insulator (SOI) platform terminated with phase-change vanadium oxide (VO2) on each side to provide light confinement. A smooth transmission modulation range of 0.8 (VO2 in the insulator state) and 0.03 (VO2 in the conductive phase state) in the 125 to 230 THz spectral region was obtained due to the of Fabry–Pérot (FP) effect. For the 3.84 μm cavity length, the presented sensor resulted in a sensitivity of 20.2 THz/RIU or 179.56 nm/RIU, which is approximately two orders of magnitude higher than its counterparts in the literature. The sensitivity of the 2D model showed direct relation with the length of the optical cavity. Moreover, the change in the resonating mode line width Δν of approximately 6.94 THz/RIU or 59.96 nm/RIU was also observed when the sensor was subjected to the change of the imaginary part k of complex refractive index (RI). This property of the sensor equips it for the sensing of aternary mixture without using any chemical surface modification. The proposed sensor haspotential applications in the areas of chemical industries, environmental monitoring and biomedical sensing.

show abstract

Thermally controlled femtosecond pulse shaping using metasurface based optical filters

Cited by 9 publications

References 50 publications

Active optical metasurfaces: comprehensive review on physics, mechanisms, and prospective applications

Active optical metasurfaces: comprehensive review on physics, mechanisms, and prospective applications

Recent Progress in Active Optical Metasurfaces

Broadband-Tunable Vanadium Dioxide (VO2)-Based Linear Optical Cavity Sensor

Contact Info

Product

Resources

About