HIRO is a customizable free-standing harmonic generator for PHAROS and CARBIDE lasers, and FLINT oscillators. It provides a high-efficiency second, third, and fourth harmonic generation at 515, 343, and 258 nm, respectively. The selection of an active harmonic is manual but requires less than a few seconds thanks to its unique optomechanical design.

HIRO can be customized for additional options such as beam size and collimation adjustment, white light continuum generation, as well as beam division and harmonics splitting, which makes all harmonics available at the same time.

Output Characteristics (pumped by PHAROS or CARBIDE lasers)

Model ¹⁾		PH1F1	PH1F2	PH1F3	PH1F4	PH_W1
Available outputs ^{2) 3)}		2H (515 nm)	2H (515 nm) 4H (258 nm)	2H (515 nm) 3H (343 nm)	2H (515 nm) 3H (343 nm) 4H (258 nm)	any combination and white light continuum
Maximum pump power		20 W
Pump pulse energy		8 – 1000 μJ ⁴⁾
Conversion efficiency ⁵⁾	2H	> 50%		> 50% ⁶⁾
	3H	–		> 25%
	4H	> 10%		> 10% ^{6) 7)}
Polarization ⁸⁾	2H	Linear, horizontal
	3H	Linear, vertical
	4H	Linear, vertical

Model pumped by ps pulses is available on request.
Depsnds on pump laser model.
Residual fundamental radiation available on request.
Percentage of the pump power; with repetition rate up to 200 kHz.
For pump pulse energy of > 1000 μJ, contact sales@lightcon.com.
When the third harmonic is not in use.
Maximum output power of 1 W.
Orthogonal polarization is available on request.

Output Characteristics (pumped by FLINT oscillators)

Generated harmonic	2H	3H	4H
Output wavelength	≈ 517 nm	≈ 345 nm	≈ 258 nm
Conversion efficiency	> 35%	> 5%	> 1%

Physical dimensions

Parameter	Value
Housing (L × W × H)	455 × 160 × 85 mm
Recommended area for fixing (L × W)	425 × 255 mm
Beam steering/intercepting (L × W × H)	150 × 55 × 75 mm

Performance charts

HIRO output wavelengths

HIRO 4H output power stability

Drawings

Drawing of HIRO with water cooling

Publications

Birefringent optical retarders from laser 3D-printed dielectric metasurfaces

S. Varapnickas, S. C. Thodika, F. Moroté, S. Juodkazis, M. Malinauskas, and E. Brasselet, Applied Physics Letters 15 (118), 151104 (2021).

Double Charge Transfer Dominates in Carrier Localization in Low Bandgap Sites of Heterogeneous Lead Halide Perovskites

A. Fakharuddin, M. Franckevičius, A. Devižis, A. Gelžinis, J. Chmeliov, P. Heremans, and V. Gulbinas, Advanced Functional Materials 15 (31), 2010076 (2021).

Transient absorption spectroscopy Fluorescence spectroscopy PHAROS HIRO ORPHEUS

Vegetable Oil-Based Thiol-Ene/Thiol-Epoxy Resins for Laser Direct Writing 3D Micro-/Nano-Lithography

S. Grauzeliene, A. Navaruckiene, E. Skliutas, M. Malinauskas, A. Serra, and J. Ostrauskaite, Polymers 6 (13), 872 (2021).

Photopolymerization PHAROS HIRO

A Bio-Based Resin for a Multi-Scale Optical 3D Printing

E. Skliutas, M. Lebedevaite, S. Kasetaite, S. Rekštytė, S. Lileikis, J. Ostrauskaite, and M. Malinauskas, Scientific Reports 1 (10) (2020).

Photopolymerization PHAROS HIRO

Characterization of a time-resolved electron microscope with a Schottky field emission gun

P. K. Olshin, M. Drabbels, and U. J. Lorenz, Structural Dynamics 5 (7), 054304 (2020).

Ultrafast electron microscopy PHAROS HIRO

Development of analytical ultrafast transmission electron microscopy based on laser-driven Schottky field emission

C. Zhu, D. Zheng, H. Wang, M. Zhang, Z. Li, S. Sun, P. Xu, H. Tian, Z. Li, H. Yang et al., Ultramicroscopy 209, 112887 (2020).

Ultrafast electron microscopy PHAROS HIRO

High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses

C. Lee, T. Rohwer, E. J. Sie, A. Zong, E. Baldini, J. Straquadine, P. Walmsley, D. Gardner, Y. S. Lee, I. R. Fisher et al., Review of Scientific Instruments 4 (91), 043102 (2020).

Photoemission spectroscopy High harmonic generation PHAROS HIRO ORPHEUS

Influence of Discrete Defects on Observed Acoustic–Phonon Dynamics in Layered Materials Probed with Ultrafast Electron Microscopy

S. A. Reisbick, Y. Zhang, and D. J. Flannigan, The Journal of Physical Chemistry A 9 (124), 1877-1884 (2020).

Ultrafast electron microscopy PHAROS HIRO

Novel UEM Setup for Improved Resolution and Extended Experimental Capabilities

T. Gage, H. Liu, I. Arslan, and R. D. Schaller, Microscopy and Microanalysis S2 (26), 434-436 (2020).

Ultrafast electron microscopy CARBIDE HIRO

Optically-Thin Broadband Graphene-Membrane Photodetector

T. Moein, D. Gailevičius, T. Katkus, S. H. Ng, S. Lundgaard, D. J. Moss, H. Kurt, V. Mizeikis, K. Staliūnas, M. Malinauskas et al., Nanomaterials 3 (10), 407 (2020).

Photopolymerization PHAROS HIRO

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Datasheets