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Pasiskevicius, ValdasORCID iD iconorcid.org/0000-0002-2508-391X
Alternative names
Publications (10 of 475) Show all publications
Tjörnhammar, S., Maestroni, V., Uždavinys, T. K., Zukauskas, A., Canalias, C., Pasiskevicius, V. & Laurell, F. (2019). Blue light induced infrared absorption and color-center fluorescence in KTP isomorphs. In: Proceedings 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015: . Paper presented at 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015; International Congress Centre (ICM)Munich; Germany; 21 June 2015 through 25 June 2015. Optical Society of America
Open this publication in new window or tab >>Blue light induced infrared absorption and color-center fluorescence in KTP isomorphs
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2019 (English)In: Proceedings 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015, Optical Society of America, 2019Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Optical Society of America, 2019
National Category
Physical Sciences
Identifiers
urn:nbn:se:kth:diva-251855 (URN)2-s2.0-85063818612 (Scopus ID)9781467374750 (ISBN)
Conference
2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015; International Congress Centre (ICM)Munich; Germany; 21 June 2015 through 25 June 2015
Note

QC 20190528

Available from: 2019-05-28 Created: 2019-05-28 Last updated: 2019-05-28Bibliographically approved
Viotti, A.-L., Laurell, F., Zukauskas, A., Canalias, C. & Pasiskevicius, V. (2019). Coherent phase transfer and pulse compressionat 1.4μm in a backward-wave OPO [Letter to the editor]. Optics Letters, 44(12), 3066-3069
Open this publication in new window or tab >>Coherent phase transfer and pulse compressionat 1.4μm in a backward-wave OPO
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2019 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 44, no 12, p. 3066-3069Article in journal, Letter (Refereed) Published
Abstract [en]

The frequency modulation transfer property of a backward-wave optical parametric oscillator (BWOPO) is investigated in the context of near-IR pulse compression. The maximum transferrable bandwidth from the pump to the forward wave in a BWOPO is determined by the group dispersion mismatch. In comparison, the third-order phase introduced in a single-grating compressor setup is more detrimental to achieve optimum compression of the BWOPO forward wave. Nevertheless, we demonstrate a 220 GHz bandwidth transfer from 800 nm to 1.4 μm, with a compression factor of 115, leading to near-IR pulses as short as 1.3 ps with μJ energy.

National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-252767 (URN)10.1364/OL.44.003066 (DOI)000471636700031 ()2-s2.0-85067983411 (Scopus ID)
Note

QC 20190610

Available from: 2019-06-07 Created: 2019-06-07 Last updated: 2019-07-29Bibliographically approved
Zukauskas, A., Pasiskevicius, V., Laurell, F. & Canalias, C. (2019). Fan-out periodically poled structures in Rb-doped KTiOPO4 for continuously tunable QPM devices. In: Schunemann, PG Schepler, KL (Ed.), NONLINEAR FREQUENCY GENERATION AND CONVERSION: MATERIALS AND DEVICES XVIII. Paper presented at Conference on Nonlinear Frequency Generation and Conversion - Materials and Devices XVIII, FEB 05-07, 2019, San Francisco, CA. SPIE-INT SOC OPTICAL ENGINEERING, Article ID UNSP 109020N.
Open this publication in new window or tab >>Fan-out periodically poled structures in Rb-doped KTiOPO4 for continuously tunable QPM devices
2019 (English)In: NONLINEAR FREQUENCY GENERATION AND CONVERSION: MATERIALS AND DEVICES XVIII / [ed] Schunemann, PG Schepler, KL, SPIE-INT SOC OPTICAL ENGINEERING , 2019, article id UNSP 109020NConference paper, Published paper (Refereed)
Abstract [en]

Since the first demonstration of electric field poling in 1993, the use of quasi-phase matching (QPM) technique has gained wide adoption in a multitude of applications. The QPM field today is dominated mainly by the ferroelectric oxide materials from LiNbO3 (LN) and KTiOPO4 (KTP) families, where QPM structures are implemented by the electric field poling technique. While typical QPM devices have a fixed-period, one-dimensional domain grating design, which is the most straightforward to implement, numerous applications require the ability to continuously tune the wavelength over a wider spectral range. For applications where temperature tuning is not desired, a fan-out QPM grating design may be advantageous. The tuning here is performed by transverse translation of the structure in respect to the pump beam, while keeping the crystal temperature constant. While the implementation of fan-out gratings is reasonably well researched in LN, there is a lack of reliable data for KTP isomorphs. Taking into account the high domain growth anisotropy in KTP, an important factor becomes the angle between the domain walls and the b-axis of the crystal. This angle directly affects the quality and dimensions of the QPM device. However, its upper boundary has not been determined to date. In this work we discuss the prospects and limitations of PPKTP devices with fan-out grating designs. We present a fan-out PPRKTP device, where the transverse fan-out rate is 0.5 mu m/mm. In an OPO configuration pumped by 532 nm such PPRKTP crystal is able to provide continuously tunable radiation between 0.7 -2.2 mu m.

Place, publisher, year, edition, pages
SPIE-INT SOC OPTICAL ENGINEERING, 2019
Series
Proceedings of SPIE, ISSN 0277-786X ; 10902
Keywords
periodic poling, KTP, frequency conversion, fan-out, OPO, parametric devices
National Category
Other Physics Topics
Identifiers
urn:nbn:se:kth:diva-255236 (URN)10.1117/12.2505623 (DOI)000471820400013 ()2-s2.0-85066756130 (Scopus ID)978-1-5106-2447-4 (ISBN)
Conference
Conference on Nonlinear Frequency Generation and Conversion - Materials and Devices XVIII, FEB 05-07, 2019, San Francisco, CA
Note

QC 20190730

Available from: 2019-07-30 Created: 2019-07-30 Last updated: 2019-07-30
Viotti, A.-L., Zukauskas, A., Canalias, C., Laurell, F. & Pasiskevicius, V. (2019). Narrowband, tunable, infrared radiation by parametric amplification of a chirped backward-wave OPO signal. Optics Express, 27(8), 10602-10610, Article ID 360745.
Open this publication in new window or tab >>Narrowband, tunable, infrared radiation by parametric amplification of a chirped backward-wave OPO signal
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2019 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 27, no 8, p. 10602-10610, article id 360745Article in journal (Refereed) Published
National Category
Natural Sciences
Research subject
Physics
Identifiers
urn:nbn:se:kth:diva-249969 (URN)000464614400044 ()2-s2.0-85064454429 (Scopus ID)
Note

QC 20190516

Available from: 2019-04-24 Created: 2019-04-24 Last updated: 2019-05-16Bibliographically approved
Peng, J., Yu, Z., Malmström, M., Laurell, F. & Pasiskevicius, V. (2019). Targeting different pulsing regimes in Tm fiber laser with a nonlinear amplifying loop mirror. In: Proceedings 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015: . Paper presented at 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015, 21 June 2015 through 25 June 2015. Optical Society of America (OSA)
Open this publication in new window or tab >>Targeting different pulsing regimes in Tm fiber laser with a nonlinear amplifying loop mirror
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2019 (English)In: Proceedings 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015, Optical Society of America (OSA) , 2019Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Optical Society of America (OSA), 2019
National Category
Physical Sciences
Identifiers
urn:nbn:se:kth:diva-252106 (URN)2-s2.0-85063824146 (Scopus ID)
Conference
2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015, 21 June 2015 through 25 June 2015
Note

QC 20190802

Available from: 2019-08-02 Created: 2019-08-02 Last updated: 2019-08-02Bibliographically approved
Armougom, J., Melkonian, J.-M., Raybaut, M., Dherbecourt, J.-B., Gorju, G., Godard, A., . . . Kadlcak, J. (2018). 7.3-10.5 µm Tunable Single-frequency Parametric Source for Standoff Detection of Gaseous Chemicals. In: Optics InfoBase Conference Papers: . Paper presented at Mid-Infrared Coherent Sources, MICS 2018, Strasbourg, France, 26 March 2017 through 28 March 2017. Optics Info Base, Optical Society of America
Open this publication in new window or tab >>7.3-10.5 µm Tunable Single-frequency Parametric Source for Standoff Detection of Gaseous Chemicals
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2018 (English)In: Optics InfoBase Conference Papers, Optics Info Base, Optical Society of America, 2018Conference paper, Published paper (Refereed)
Abstract [en]

We report on the first single-frequency parametric source tunable in the longwave infrared with an output energy of 1 mJ. The source is then used in a lidar to detect chemicals in the vapor phase.

Place, publisher, year, edition, pages
Optics Info Base, Optical Society of America, 2018
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-226347 (URN)10.1364/MICS.2018.MM4C.7 (DOI)2-s2.0-85047121300 (Scopus ID)9781557528209 (ISBN)
Conference
Mid-Infrared Coherent Sources, MICS 2018, Strasbourg, France, 26 March 2017 through 28 March 2017
Note

QC 20180507

Available from: 2018-04-18 Created: 2018-04-18 Last updated: 2018-05-29Bibliographically approved
Lu, D., Peña, A., Segonds, P., Debray, J., Zukauskas, A., Laurell, F., . . . Boulanger, B. (2018). Angular quasi-phase-matching in a sphere of PPRKTP. In: Optics InfoBase Conference Papers: . Paper presented at Mid-Infrared Coherent Sources, MICS 2018, 26 March 2017 through 28 March 2017. Optical Society of America
Open this publication in new window or tab >>Angular quasi-phase-matching in a sphere of PPRKTP
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2018 (English)In: Optics InfoBase Conference Papers, Optical Society of America, 2018Conference paper, Published paper (Refereed)
Abstract [en]

we report the first measurements of angular quasi-phase-matching directions of secondharmonic generation performed in the periodically-poled Rb-doped KTiOPO4 biaxial crystal cut as a sphere.

Place, publisher, year, edition, pages
Optical Society of America, 2018
Keywords
Infrared devices, Optical parametric oscillators, Rubidium compounds, Titanium compounds, Biaxial crystal, KTiOPO4, Measurements of, Periodically poled, Quasi phase matching, Second-harmonic, Phase matching
National Category
Condensed Matter Physics
Identifiers
urn:nbn:se:kth:diva-236429 (URN)10.1364/MICS.2018.MT2C.5 (DOI)2-s2.0-85047169138 (Scopus ID)9781557528209 (ISBN)
Conference
Mid-Infrared Coherent Sources, MICS 2018, 26 March 2017 through 28 March 2017
Note

QC 20181025

Available from: 2018-10-25 Created: 2018-10-25 Last updated: 2018-10-25Bibliographically approved
Lu, D., Peña, A., Segonds, P., Debray, J., Joly, S., Zukauskas, A., . . . Boulanger, B. (2018). Angular quasi-phase-matching in the biaxial crystal PPRKTP. In: Optics InfoBase Conference Papers: . Paper presented at Advanced Solid State Lasers, ASSL 2018, 4 November 2018 through 8 November 2018. OSA - The Optical Society
Open this publication in new window or tab >>Angular quasi-phase-matching in the biaxial crystal PPRKTP
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2018 (English)In: Optics InfoBase Conference Papers, OSA - The Optical Society , 2018Conference paper, Published paper (Refereed)
Abstract [en]

We performed the first measurements of angular quasi-phase-matching (AQPM) of second-harmonic generation in the periodically-poled Rb-doped KTiOPO4 crystal cut as a sphere, which validates the theory of AQPM in the case of a biaxial crystal. 

Place, publisher, year, edition, pages
OSA - The Optical Society, 2018
Keywords
Nonlinear optics, Phase matching, Rubidium compounds, Titanium compounds, Biaxial crystal, KTiOPO4, Measurements of, Periodically poled, Quasi phase matching, Solid state lasers
National Category
Physical Sciences
Identifiers
urn:nbn:se:kth:diva-246558 (URN)10.1364/ASSL.2018.ATh4A.5 (DOI)2-s2.0-85059474840 (Scopus ID)
Conference
Advanced Solid State Lasers, ASSL 2018, 4 November 2018 through 8 November 2018
Note

QC 20190514

Available from: 2019-05-14 Created: 2019-05-14 Last updated: 2019-05-14Bibliographically approved
Budriunas, R., Kucˇinskas, D., Stanislauskas, T., Gadonas, D., Viotti, A.-L., Zukauskas, A., . . . Varanavicˇius, A. (2018). Broadband noncollinear optical parametric amplification in GaSe pumped at 1.5μm. In: Optics InfoBase Conference Papers: . Paper presented at Mid-Infrared Coherent Sources, MICS 2018, 26 March 2017 through 28 March 2017. OSA - The Optical Society
Open this publication in new window or tab >>Broadband noncollinear optical parametric amplification in GaSe pumped at 1.5μm
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2018 (English)In: Optics InfoBase Conference Papers, OSA - The Optical Society , 2018Conference paper, Published paper (Refereed)
Abstract [en]

We demonstrate broadband parametric amplification in GaSe crystal in noncollinear geometry. Seed pulses spanning 1.5-2.6μm are produced by cascaded χ(2) nonlinearity in a periodically poled Rb:KTP crystal. Amplified pulse bandwidths supporting 10-15fs transformlimited pulse durations at ~2μm central wavelength are achieved.

Place, publisher, year, edition, pages
OSA - The Optical Society, 2018
Keywords
Band structure, Gallium compounds, Infrared devices, Layered semiconductors, Selenium compounds, Amplified pulse, Central wavelength, GaSe crystals, KTP crystals, Optical parametric amplification, Parametric amplification, Periodically poled, Transform-limited pulse, Optical parametric amplifiers
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-236407 (URN)10.1364/MICS.2018.MW2C.2 (DOI)2-s2.0-85047117873 (Scopus ID)9781557528209 (ISBN)
Conference
Mid-Infrared Coherent Sources, MICS 2018, 26 March 2017 through 28 March 2017
Note

QC 20181026

Available from: 2018-10-26 Created: 2018-10-26 Last updated: 2018-12-04Bibliographically approved
Tian, J., Laurell, F., Pasiskevicius, V., Qiu, M. & Jang, H. (2018). Demonstration of terahertz ferroelectric metasurface using a simple and scalable fabrication method. Optics Express, 26(21), 27917-27930
Open this publication in new window or tab >>Demonstration of terahertz ferroelectric metasurface using a simple and scalable fabrication method
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2018 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 26, no 21, p. 27917-27930Article in journal (Refereed) Published
Abstract [en]

We report on experimental implementation of a ferroelectric metasurface using an x-cut KTiOPO4 (KTP) crystal for efficient manipulation of terahertz (THz) radiation. Based on the multipolar resonances that are accommodated in KTP micro-blocks in a square array, the metasurface is fabricated by precision diamond-blade dicing. Adjusting the size of the KTP micro-blocks to tailor the relative spectral positions of the anisotropic multipolar resonances, we demonstrate a subwavelength-thin THz polarizer that functions as a transparent film in the y-direction and a magnetic mirror in the z-direction with a transmission contrast of 13 dB near 0.37 THz (820 mu m). The ferroelectric-based all-dielectric metasurface will provide a versatile platform to engineer the THz waves in the far field and could potentially be combined with THz generation in the same material.

Place, publisher, year, edition, pages
Optical Society of America, 2018
National Category
Other Physics Topics
Identifiers
urn:nbn:se:kth:diva-238123 (URN)10.1364/OE.26.027917 (DOI)000447287700086 ()2-s2.0-85055031905 (Scopus ID)
Note

QC 20181120

Available from: 2018-11-20 Created: 2018-11-20 Last updated: 2018-12-07Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-2508-391X

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