Applications of the shaped sapphire in thz-wave delivery and super-resolution imaging
G. M. Katyba1,2,3, K. I. Zaytsev 2,3,4, V. N. Kurlov 1,4
1) Institute of Solid State Physics of RAS, Russia
2) Prokhorov General Physics Institute of RAS, Russia
3) Bauman Moscow State Technical University, Russia
4) Institute for Regenerative Medicine, Sechenov University, Russia
Abstract
In the last years different instruments based on crystalline sapphire were introduced to the several branches of THz science. In particular, sapphire multichannel waveguides were successfully used for low-loss radiation delivery [1,2] and intrawaveguide measurements [2,3]. Flexible sapphire subwavelength-diameter fibers were successfully implemented in the THz near-field scanning-probe optical microscopy [4,5]. Moreover, it was shown that a bundle of such fibers is useful for the THz image formation with the spatial resolution below 0.5 λ [6]. In this report I want to tell about our resent achievements in the THz optical elements designing, intended for THz low-loss delivery and THz imaging with high resolution and based on the shaped sapphire crystals.
This work was supported by the Russian Science Foundation (RSF), # 19-12-00402.
[1] IEEE Transactions on Terahertz Science and Technology, 6(4), 576–582 (2016).
[2] Advanced Optical Materials, 6(22), 1800573 (2018).
[3] Proceedings of SPIE, 11065, 110651E (2019).
[4] Applied Physics Letters, 114, 03110 (2019).
[5] Optical Engineering 60(8), 082010 (2021).
[6] Advanced Optical Materials, 8(18) 2000307 (2020).
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Speaker
Gleb Katyba
1) Institute of Solid State Physics of RAS, Russia; 2) Prokhorov General Physics Institute of RAS, Russia: 3) Bauman Moscow State Technical University, Russia
Russia
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