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Walk-off effect in nonlinear crystals suitable for UVC generation

Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearchpeer-review

Standard

Walk-off effect in nonlinear crystals suitable for UVC generation. / Volet, Nicolas; Ulsig, Emil Z.; Degli-Eredi, Iterio; Tønning, Peter; Stanton, Eric J.

Nonlinear Frequency Generation and Conversion: Materials and Devices XX. ed. / Peter G. Schunemann; Kenneth L. Schepler. SPIE - International Society for Optical Engineering, 2021. 116701O (Proceedings of SPIE - The International Society for Optical Engineering, Vol. 11670).

Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearchpeer-review

Harvard

Volet, N, Ulsig, EZ, Degli-Eredi, I, Tønning, P & Stanton, EJ 2021, Walk-off effect in nonlinear crystals suitable for UVC generation. in PG Schunemann & KL Schepler (eds), Nonlinear Frequency Generation and Conversion: Materials and Devices XX., 116701O, SPIE - International Society for Optical Engineering, Proceedings of SPIE - The International Society for Optical Engineering, vol. 11670, Nonlinear Frequency Generation and Conversion: Materials and Devices XX 2021, Virtual, Online, United States, 06/03/2021. https://doi.org/10.1117/12.2581674

APA

Volet, N., Ulsig, E. Z., Degli-Eredi, I., Tønning, P., & Stanton, E. J. (2021). Walk-off effect in nonlinear crystals suitable for UVC generation. In P. G. Schunemann, & K. L. Schepler (Eds.), Nonlinear Frequency Generation and Conversion: Materials and Devices XX [116701O] SPIE - International Society for Optical Engineering. Proceedings of SPIE - The International Society for Optical Engineering Vol. 11670 https://doi.org/10.1117/12.2581674

CBE

Volet N, Ulsig EZ, Degli-Eredi I, Tønning P, Stanton EJ. 2021. Walk-off effect in nonlinear crystals suitable for UVC generation. Schunemann PG, Schepler KL, editors. In Nonlinear Frequency Generation and Conversion: Materials and Devices XX. SPIE - International Society for Optical Engineering. Article 116701O. (Proceedings of SPIE - The International Society for Optical Engineering, Vol. 11670). https://doi.org/10.1117/12.2581674

MLA

Volet, Nicolas et al. "Walk-off effect in nonlinear crystals suitable for UVC generation". and Schunemann, Peter G. Schepler, Kenneth L. (editors). Nonlinear Frequency Generation and Conversion: Materials and Devices XX. SPIE - International Society for Optical Engineering. (Proceedings of SPIE - The International Society for Optical Engineering, Vol. 11670). 2021. https://doi.org/10.1117/12.2581674

Vancouver

Volet N, Ulsig EZ, Degli-Eredi I, Tønning P, Stanton EJ. Walk-off effect in nonlinear crystals suitable for UVC generation. In Schunemann PG, Schepler KL, editors, Nonlinear Frequency Generation and Conversion: Materials and Devices XX. SPIE - International Society for Optical Engineering. 2021. 116701O. (Proceedings of SPIE - The International Society for Optical Engineering, Vol. 11670). https://doi.org/10.1117/12.2581674

Author

Volet, Nicolas ; Ulsig, Emil Z. ; Degli-Eredi, Iterio ; Tønning, Peter ; Stanton, Eric J. / Walk-off effect in nonlinear crystals suitable for UVC generation. Nonlinear Frequency Generation and Conversion: Materials and Devices XX. editor / Peter G. Schunemann ; Kenneth L. Schepler. SPIE - International Society for Optical Engineering, 2021. (Proceedings of SPIE - The International Society for Optical Engineering, Vol. 11670).

Bibtex

@inproceedings{78df1784f95542a1aa77983610048ea8,
title = "Walk-off effect in nonlinear crystals suitable for UVC generation",
abstract = "Lasers emitting in the ultraviolet C-band (UVC) have recently attracted considerable attention for germicidal purposes. Combining diode lasers with nonlinear crystals used for second-harmonic generation (SHG) is a promising approach thanks to their relatively low cost, small footprint and long lifetime. The output power in the UVC is limited by the output power of the diode lasers and by the conversion efficiency in the nonlinear crystal. This work compares the SHG conversion efficiency using a bulk approach to values expected using guided modes in waveguides. It discusses the phase-matching (PhM) condition for different input polarizations, the effective nonlinearity, and the Poynting vector walk-off. This last effect is particularly detrimental as it reduces the effective length for the nonlinear interaction in bulk, which ultimately limits the conversion efficiency towards the UVC. Values for the walk-off angle are computed for barium borate (BBO), and a comparison is provided with other nonlinear crystals.",
keywords = "Barium borate (BBO), Second-harmonic generation (SHG), Spatial walk-off, Ultraviolet laser",
author = "Nicolas Volet and Ulsig, {Emil Z.} and Iterio Degli-Eredi and Peter T{\o}nning and Stanton, {Eric J.}",
note = "Publisher Copyright: {\textcopyright} 2021 SPIE.; Nonlinear Frequency Generation and Conversion: Materials and Devices XX 2021 ; Conference date: 06-03-2021 Through 12-03-2021",
year = "2021",
doi = "10.1117/12.2581674",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE - International Society for Optical Engineering",
editor = "Schunemann, {Peter G.} and Schepler, {Kenneth L.}",
booktitle = "Nonlinear Frequency Generation and Conversion",
address = "United States",

}

RIS

TY - GEN

T1 - Walk-off effect in nonlinear crystals suitable for UVC generation

AU - Volet, Nicolas

AU - Ulsig, Emil Z.

AU - Degli-Eredi, Iterio

AU - Tønning, Peter

AU - Stanton, Eric J.

N1 - Publisher Copyright: © 2021 SPIE.

PY - 2021

Y1 - 2021

N2 - Lasers emitting in the ultraviolet C-band (UVC) have recently attracted considerable attention for germicidal purposes. Combining diode lasers with nonlinear crystals used for second-harmonic generation (SHG) is a promising approach thanks to their relatively low cost, small footprint and long lifetime. The output power in the UVC is limited by the output power of the diode lasers and by the conversion efficiency in the nonlinear crystal. This work compares the SHG conversion efficiency using a bulk approach to values expected using guided modes in waveguides. It discusses the phase-matching (PhM) condition for different input polarizations, the effective nonlinearity, and the Poynting vector walk-off. This last effect is particularly detrimental as it reduces the effective length for the nonlinear interaction in bulk, which ultimately limits the conversion efficiency towards the UVC. Values for the walk-off angle are computed for barium borate (BBO), and a comparison is provided with other nonlinear crystals.

AB - Lasers emitting in the ultraviolet C-band (UVC) have recently attracted considerable attention for germicidal purposes. Combining diode lasers with nonlinear crystals used for second-harmonic generation (SHG) is a promising approach thanks to their relatively low cost, small footprint and long lifetime. The output power in the UVC is limited by the output power of the diode lasers and by the conversion efficiency in the nonlinear crystal. This work compares the SHG conversion efficiency using a bulk approach to values expected using guided modes in waveguides. It discusses the phase-matching (PhM) condition for different input polarizations, the effective nonlinearity, and the Poynting vector walk-off. This last effect is particularly detrimental as it reduces the effective length for the nonlinear interaction in bulk, which ultimately limits the conversion efficiency towards the UVC. Values for the walk-off angle are computed for barium borate (BBO), and a comparison is provided with other nonlinear crystals.

KW - Barium borate (BBO)

KW - Second-harmonic generation (SHG)

KW - Spatial walk-off

KW - Ultraviolet laser

UR - http://www.scopus.com/inward/record.url?scp=85107026609&partnerID=8YFLogxK

U2 - 10.1117/12.2581674

DO - 10.1117/12.2581674

M3 - Article in proceedings

AN - SCOPUS:85107026609

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Nonlinear Frequency Generation and Conversion

A2 - Schunemann, Peter G.

A2 - Schepler, Kenneth L.

PB - SPIE - International Society for Optical Engineering

T2 - Nonlinear Frequency Generation and Conversion: Materials and Devices XX 2021

Y2 - 6 March 2021 through 12 March 2021

ER -