Zobrazeno 1 - 10
of 242
pro vyhledávání: '"Bedford, Robert A."'
Autor:
Gottesman, Nathan S., Slocum, Michael A., Sevison, Gary A., Wolf, Michael, Lukowski, Michal L., Hessenius, Chris, Fallahi, Mahmoud, Bedford, Robert G.
Publikováno v:
Appl. Phys. Lett. 26 February 2024; 124 (9): 091110
Nitrogen-vacancy (NV) centers have considerable promise as high sensitivity magnetometers, however are commonly limited by inefficient collection and low contrasts. Laser threshold magnetometry (LTM) enables efficient collection and high contrasts, p
Externí odkaz:
http://arxiv.org/abs/2403.19751
Autor:
Furman, Nathaniel, Mealy, Tarek, Islam, Md Shafiqul, Vitebskiy, Ilya, Gibson, Ricky, Bedford, Robert, Boyraz, Ozdal, Capolino, Filippo
We introduce a glide symmetric optical waveguide exhibiting a stationary inflection point (SIP) in the Bloch wavenumber dispersion relation. An SIP is a third order exceptional point of degeneracy (EPD) where three Bloch eigenmodes coalesce to form a
Externí odkaz:
http://arxiv.org/abs/2212.06222
Autor:
Herrero-Parareda, Albert, Furman, Nathaniel, Mealy, Tarek, Gibson, Richard, Bedford, Robert, Vitebskiy, Ilya, Capolino, Filippo
The concept of lasers based on the frozen mode regime in active periodic optical waveguides with a 3rd-order exceptional point of degeneracy (EPD) is advanced. The frozen mode regime in a lossless and gainless waveguide is associated with a stationar
Externí odkaz:
http://arxiv.org/abs/2212.00191
Autor:
Nada, Mohamed Y., Mealy, Tarek, Islam, Md Shafiqul, Vitebskiy, Ilya, Gibson, Ricky, Bedford, Robert, Boyraz, Ozdal, Capolino, Filippo
We design a three-way silicon optical waveguide with the Bloch dispersion relation supporting a stationary inflection point (SIP). The SIP is a third order exceptional point of degeneracy (EPD) where three Bloch modes coalesce forming the frozen mode
Externí odkaz:
http://arxiv.org/abs/2211.01408
Autor:
Song, Alex Y., Kalapala, Akhil Raj Kumar, Gibson, Ricky, Reilly, Kevin James, Rotter, Thomas, Addamane, Sadhvikas, Wang, Haiwen, Guo, Cheng, Balakrishnan, Ganesh, Bedford, Robert, Zhou, Weidong, Fan, Shanhui
We show that by using a perturbed photonic Dirac-cone, one can realize ultra-narrow and finite Q-factor peak in the wavevector space, with both the peak value and the width separately tunable. We also discuss a lower bound in the minimal viable width
Externí odkaz:
http://arxiv.org/abs/2104.09818
Publikováno v:
Appl. Opt. 60, G107-G112 (2021)
A single transverse mode high pulse-energy VECSEL was developed. The GaSb based VECSEL emits at a wavelength of 2.04 microns with a peak power exceeding 500W while maintaining good beam quality. The cavity employs a Pockels cell combined with a low-l
Externí odkaz:
http://arxiv.org/abs/2104.06962
Akademický článek
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Publikováno v:
Journal of Applied Physics; 2/7/2023, Vol. 133 Issue 5, p1-11, 11p
Autor:
Ruditskiy, Aleksey, Dass, Chandriker K., Trout, Amanda H., Stevenson, Peter R., Bedford, Robert G., McComb, David W., Durstock, Michael F., Kennedy, W. Joshua
Publikováno v:
APL Photonics; May2024, Vol. 9 Issue 5, p1-9, 9p
Autor:
Cehajic-Kapetanovic, Jasmina, Milosavljevic, Nina, Bedford, Robert A., Lucas, Robert J., Bishop, Paul N.
Publikováno v:
In Molecular Therapy - Methods & Clinical Development 15 June 2018 9:192-202