The d-scan is an inline, compact and high-performance device for the simultaneous measurement and compression of even the most demanding ultrashort laser pulses

Sphere Ultrafast Photonics is committed to finding the best solution for measuring your laser system, providing custom solutions covering different wavelength ranges, pulse durations and repetition rates

Benefiting from more than 15 years of experience, Sphere Ultrafast Photonics offers a new generation of products and services in the ultrafast pulsed laser regime

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Collaborations and joint research projects with international entities and partners provide a strong R&D workforce in the ultrafast laser world, allowing for the development of innovative products and solutions with the most advanced competitive advantages in all Sphere Ultrafast Photonics portfolio and custom systems.

Papers and Articles

Detection and elimination of pulse train instabilities in broadband fibre lasers using dispersion scan
B. Alonso, S. Torres-Peiró, R. Romero, P. T. Guerreiro, A. Almagro-Ruiz, H. Muñoz-Marco, P. Pérez-Millán and H. crespo
Scientific Reports | (2020) 10:7242 | https://doi.org/10.1038/s41598-020-64109-x
https://www.nature.com/articles/s41598-020-64109-x

All-optical measurement of the complete waveform of octave-spanning ultrashort light pulses
M. Miranda, F. Silva, L. Neoricic, C. Guo, V. Pervak, M. Canhota, A. S. Silva, I. J. Sola, R. Romero, P. T. Guerreiro, A. L’Huillier, C. L. Arnold And H. Crespo
Vol. 44, No. 2 / 15 January 2019 / Optics Letters
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-44-2-191

SyncRGB-FLIM: synchronous fluorescence imaging of red, green and blue dyes enabled by ultra-broadband few-cycle laser excitation and fluorescence lifetime detection
C. Maibohm, F. Silva, E. Figueiras, P. T. Guerreiro, M. Brito, R. Romero, H. Crespo and J. B. Nieder
Vol. 10, No. 4 | 1 Apr 2019 | BIOMEDICAL OPTICS EXPRESS 1892
https://www.osapublishing.org/boe/abstract.cfm?uri=boe-10-4-1891

Evaluation of the Coherent Artifact in Ultrashort Laser Pulses using D-scan and its Application to Broadband Fiber Lasers
B. Alonso, S. Torres-Peiró, R. Romero, P. T. Guerreiro, H. Muñoz-Marco, P. Pérez-Millán, H. Crespo
019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, OSA Technical Digest (OSA, 2019), paper cf_p_48
https://www.osapublishing.org/abstract.cfm?uri=CLEO_Europe-2019-cf_p_48

Propagation effects in the characterization of 1.5-cycle pulses by XPW dispersion scan
A. Tajalli, M. Ouille, A. Vernier, F. Bohle, E. Escoto, S. Kleinert, R. Romero, J. Csontos, U. Morgner, G. Steinmeyer, H. Crespo, R. Lopez Martens, and T. Nagy
IEEE Journal of Selected Topics in Quantum Electronics ( Volume: 25 , Issue: 4 , July-Aug. 2019 )
https://ieeexplore.ieee.org/document/8447506

Strategies for achieving intense single-cycle pulses with in-line post-compression setups
F. Silva, B. Alonso, W. Holgado, R. Romero, J. San Roman, E. Conejero Jarque, H. Koop, V. Pervak, H. Crespo, and I. J. Sola
Vol. 43, No. 2 / January 15 2018 / Optics Letters
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-43-2-337

Universal route to optimal few- to single-cycle pulse generation in hollow-core fiber compressors
E. Conejero Jarque, J. San Roman, F. Silva, R. Romero, W. Holgado, M. A. Gonzalez-Galicia, B. Alonso, I. J. Sola and H. Crespo
Scientific Reports | (2018) 8:2256 | DOI:10.1038/s41598-018-20580-1
https://www.nature.com/articles/s41598-018-20580-1

Self-calibrating d-scan: measuring ultrashort laser pulses on-target using an arbitrary pulse compressor
Benjamín Alonso, Íñigo J. Sola and Helder Crespo
ScIeNtIFIc RepoRtS | (2018) 8:3264 | DOI:10.1038/s41598-018-21701-6
https://www.nature.com/articles/s41598-018-21701-6

Generation and in-situ measurement of the full electric field of near-single-cycle light pulses by CEP dispersion-scan
F. Silva, R. Romero, M. Miranda, P. Guerreiro, M. Canhota, H. Koop, V. Pervak, I. J. Solá, and H. Crespo
(2018) Ultrafast Optics 2017 In Proceedings of SPIE – The International Society for Optical Engineering 10606. p.25-25
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10606/1060601/Ultrafast-Optics-2017-Abstract-Book/10.1117/12.2310152.full?SSO=1

Monolithic single-shot dispersion-scan: a new tool for real-time measurement and optimization of femtosecond pulses
Francisco Silva, Íñigo J. Sola, Helder Crespo, Rosa Romero, Miguel Miranda, Cord L. Arnold, Anne L’Huillier, Jose Trull, Crina Cojocaru
2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference, (OSA, 2017), paper CF_11_3.
https://www.osapublishing.org/abstract.cfm?uri=CLEO_Europe-2017-CF_11_3

Carrier-envelope-phase insensitivity in high-order harmonic generation driven by few-cycle laser pulses
C. Herna ́ndez-Garc ́ıa,∗ W. Holgado, L. Plaja, B. Alonso, F. Silva, M. Miranda, H. Crespo and I. J. Sola
10 Aug 2015 | Vol. 23, No. 16 | DOI:10.1364/OE.23.021497 | OPTICS EXPRESS 21497
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-23-16-21497

Single-shot implementation of dispersion-scan for the characterization of ultrashort laser pulses
D. Fabris, W. Holgado, F. Silva, T. Witting, J. W. G. Tisch, and H. Crespo
14 Dec 2015 | Vol. 23, No. 25 | DOI:10.1364/OE.23.032803 | OPTICS EXPRESS 32803
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-23-25-32803

Compression of CEP-stable multi-mJ laser pulses down to 4 fs in long hollow fibers
Frederik Böhle, Martin Kretschmar, Aurélie Jullien, Mate Kovacs, Miguel Miranda, Rosa Romero, Helder Crespo, Uwe Morgner, Peter Simon, Rodrigo Lopez-Martens and Tamas Nagy
Laser Physics Letters 06/2014; 11(9):095401
http://iopscience.iop.org/1612-202X/11/9/095401;jsessionid=6F899613B8CB152FC520F4CB0033E674.c1

Simultaneous compression, characterization and phase stabilization of GW-level 1.4 cycle VIS-NIR femtosecond pulses using a single dispersion-scan setup
Francisco Silva, Miguel Miranda, Benjamín Alonso, Jens Rauschenberger, Vladimir Pervak and Helder Crespo
5 May 2014 | Vol. 22, No. 9 | DOI:10.1364/OE.22.010181 | OPTICS EXPRESS 10181
http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-22-9-10181

Ultrashort laser pulse characterization from dispersion scans: a comparison with SPIDER
Miguel Miranda, Piotr Rudawski, Chen Guo, Francisco Silva, Cord L. Arnold, Thomas Binhammer, Helder Crespo and Anne L’Huillier
Lasers and Electro-Optics (CLEO), 2013 Conference on, 9-14 June 2013
http://www.opticsinfobase.org/abstract.cfm?uri=CLEO_SI-2013-JTh2A.311

Near to mid-IR ultra-broadband third harmonic generation in multilayer graphene: few-cycle pulse measurement using THG dispersion-scan
Francisco Silva, Miguel Miranda, Stephan Teichmann, M Baudish, Mathieu Massicotte, Frank Koppens, Jens Biegert and Helder Crespo
CLEO: Science and Innovations, 2013/6/9, Pages CW1H. 5
http://www.opticsinfobase.org/abstract.cfm?uri=CLEO_SI-2013-CW1H.5

Measuring few-cycle laser pulses: a comparative study between dispersion- scan and FROG
Francisco Silva, Miguel Miranda and Helder Crespo
Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference, 12-16 May 2013
http://www.opticsinfobase.org/abstract.cfm?URI=IQEC-2013-CFIE_P_17

Characterization of sub-two-cycle pulses from a hollow-core fiber compressor in the spatiotemporal and spatiospectral domains
Benjamín Alonso, Miguel Miranda, Francisco Silva, Vladimir Pervak, Jens Rauschenberger, Julio San Román, Íñigo J. Sola and Helder Crespo
Appl. Phys. B 112(1), 105–114 (2013)
http://link.springer.com/article/10.1007%2Fs00340-013-5406-5

Characterization of broadband few-cycle laser pulses with the d-scan technique
Miguel Miranda, Cord L. Arnold, Thomas Fordell, Francisco Silva, Benjamín Alonso, Rosa Weigand, Anne L’Huillier and Helder Crespo
13 August 2012 / Vol. 20, No. 17 / OPTICS EXPRESS 18732
http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-20-17-18732

Spatiotemporal characterization of few-cycle laser pulses
Benjamín Alonso, Miguel Miranda, Íñigo J. Sola and Helder Crespo
30 July 2012 / Vol. 20, No. 16 / OPTICS EXPRESS 17880
http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-20-16-17880

Simultaneous compression and characterization of ultrashort laser pulses using chirped mirrors and glass wedges
Miguel Miranda, Thomas Fordell, Cord Arnold, Anne L’Huillier and Helder Crespo
2 January 2012 / Vol. 20, No. 1 / OPTICS EXPRESS 688
http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-20-1-688