Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Ting-Shan Luk"'
Autor:
Mei-Li Hsieh, Shawn-Yu Lin, Sajeev John, James A. Bur, Xuanjie Wang, Shankar Narayanan, Ting-Shan Luk
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 6, Pp 1-8 (2019)
In this paper, we report a direct imaging of narrow-band super Planckian thermal radiation in the far field, emitted from a resonant-cavity/tungsten photonic crystal (cavity/W-PC). A spectroscopic study of the cavity/W-PC shows a distinct resonant pe
Externí odkaz:
https://doaj.org/article/91b59414c7f441ff9950b01f933ffc79
Autor:
Oleg Mitrofanov, Lucy L. Hale, Polina P. Vabishchevich, Ting Shan Luk, Sadhvikas J. Addamane, John L. Reno, Igal Brener
Publikováno v:
APL Photonics, Vol 5, Iss 10, Pp 101304-101304-7 (2020)
Perfect absorption of light by an optically thin metasurface is among several remarkable optical functionalities enabled by nanophotonics. This functionality can be introduced into optoelectronic devices by structuring an active semiconductor-based e
Externí odkaz:
https://doaj.org/article/c5f875fcd85c4cfaaa34b0a3168505a4
Autor:
Hyunseung Jung, Lucy L. Hale, Sylvain D. Gennaro, Jayson Briscoe, Prasad P. Iyer, Chloe F. Doiron, C. Thomas Harris, Ting Shan Luk, Sadhvikas J. Addamane, John L. Reno, Igal Brener, Oleg Mitrofanov
Publikováno v:
Nano Letters. 22:9077-9083
The effect of terahertz (THz) pulse generation has revolutionized broadband coherent spectroscopy and imaging at THz frequencies. However, THz pulses typically lack spatial structure, whereas structured beams are becoming essential for advanced spect
Publikováno v:
SPIE Future Sensing Technologies 2023.
Autor:
Lucy L. Hale, Hyunseung Jung, Sylvain D. Gennaro, Jayson Briscoe, C. Thomas Harris, Ting Shan Luk, Sadhvikas J. Addamane, John L. Reno, Igal Brener, Oleg Mitrofanov
Publikováno v:
ACS Photonics. 9:1136-1142
Ultrafast optical excitation of select materials gives rise to the generation of broadband terahertz (THz) pulses. This effect has enabled the field of THz time-domain spectroscopy and led to the discovery of many physical mechanisms behind THz gener
Publikováno v:
APL Photonics, Vol 3, Iss 5, Pp 051703-051703-6 (2018)
We designed an optically thin photoconductive channel as an all-dielectric metasurface comprising an array of low-temperature grown GaAs nanobeams and a sub-surface distributed Bragg reflector. The metasurface exhibited enhanced optical absorption,
Externí odkaz:
https://doaj.org/article/be9c4fcb4f874108b562369215a1d84f
Autor:
Lucy L. Hale, Hyunseung Jung, Sylvain D. Gennaro, Jayson Briscoe, C. Thomas Harris, Ting Shan Luk, Sadhvikas J. Addamane, John L. Reno, Igal Brener, Oleg Mitrofanov
Publikováno v:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
Autor:
Lucy L Hale, Hyunseung Jung, Raktim Sarma, Charles Thomas Harris, Ting Shan Luk, Sadhvikas J Addamane, John L Reno, Oleg Mitrofanov, Igal Brener
Publikováno v:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
Autor:
Lucy L Hale, Hyunseung Jung, Sylvain Gennaro, Jayson Briscoe, Charles Thomas Harris, Ting Shan Luk, Sadhvikas J Addamane, John L Reno, Igal Brener, Oleg Mitrofanov
Publikováno v:
Conference on Lasers and Electro-Optics.
We show that a GaAs metasurface can generate THz radiation with comparable efficiency to a bulk GaAs crystal. We attribute the enhanced generation to second order nonlinearity with the surface making a strong contribution.
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate mid-infrared SEIRA sensors employing an unconventional liquid-metal-based nanophotonic structure, which allows for convenient delivery of thin film analyte into the sensing hot spots. State-of-the-art SEIRA sensing performance was demo