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  • Stephan W Koch
2014

Quantum theory of dropletons

Mootz, M., Kira, M. & Koch, S. W., Oct 14 2014, Laser Science, LS 2014. Optical Society of America (OSA), (Laser Science, LS 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2012
20 Scopus citations
2011

Interaction of strong terahertz pulses with exciton-polaritons in quantum-well microcavity

Lee, Y. S., Tomaino, J. L., Jameson, A. D., Khitrova, G., Gibbs, H. M., Stroech, A., Kira, M. & Koch, S. W., Dec 1 2011, Quantum Electronics and Laser Science Conference, QELS 2011. (Optics InfoBase Conference Papers).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Non-equilibrium analysis of the two-color operation in semiconductor quantum-well lasers

Bäumner, A., Koch, S. W. & Moloney, J. V., Apr 1 2011, In : Physica Status Solidi (B) Basic Research. 248, 4, p. 843-846 4 p.

Research output: Contribution to journalArticle

26 Scopus citations
2014

Magnetic control of Coulomb scattering and terahertz transitions among excitons

Bhattacharyya, J., Zybell, S., Eßer, F., Helm, M., Schneider, H., Schneebeli, L., Böttge, C. N., Breddermann, B., Kira, M., Koch, S. W., Andrews, A. M. & Strasser, G., Mar 31 2014, In : Physical Review B - Condensed Matter and Materials Physics. 89, 12, 125313.

Research output: Contribution to journalArticle

3 Scopus citations

Intensity and frequency noise properties of multi-Watt single frequency VECSEL with and without active stabilization

Laurain, A., Hader, J., Koch, S. W., Stolz, W. & Moloney, J. V., Jan 1 2014, Vertical External Cavity Surface Emitting Lasers (VECSELs) IV. SPIE, 89660A. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 8966).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations
2015

Sub-cycle strong-field electron dynamics in a bulk semiconductor traced by high-order harmonic generation

Langer, F., Hohenleutner, M., Schubert, O., Lange, C., Urbanek, B., Knorr, M., Huber, R., Huttner, U., Koch, S. W. & Kira, M., Oct 5 2015, 2015 Photonics North. Institute of Electrical and Electronics Engineers Inc., 7292508

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2019

Nonlinear rovibrational response in the propagation of long-wavelength infrared pulses and pulse trains

Rosenow, P., Panagiotopoulos, P., Kolesik, M., Koch, S. W. & Moloney, J. V., Jan 1 2019, In : Journal of the Optical Society of America B: Optical Physics. 36, 12, p. 3457-3463 7 p.

Research output: Contribution to journalArticle

2016

1.2μm emitting VECSEL based on type-II aligned QWs

Möller, C., Berger, C., Fuchs, C., Ruiz Perez, A., Koch, S. W., Hader, J., Moloney, J. V. & Stolz, W., 2016, Vertical External Cavity Surface Emitting Lasers (VECSELs) VI. SPIE, Vol. 9734. 97340H

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2011

Continuous wave terahertz source for remote detection and as a local oscillator for THz receivers

Scheller, M., Yarborough, J. M., Young, A., Fallahi, M., Moloney, J. V., Koch, M., Koch, S. W., D'Aubigny, C. & Walker, C., Dec 1 2011, IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves. 6104906. (IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations
2015

In situ probing of mode-locked vertical-external-cavity-surface-emitting lasers

Baker, C., Scheller, M. A., Koch, S. W., Perez, A. R., Stolz, W., Jones, R. J. & Moloney, J. V., Dec 1 2015, In : Optics Letters. 40, 23, p. 5459-5462 4 p.

Research output: Contribution to journalArticle

12 Scopus citations
2017

An ab initio based approach to optical properties of semiconductor heterostructures

Bannow, L. C., Rosenow, P., Springer, P., Fischer, E. W., Hader, J., Moloney, J. V., Tonner, R. & Koch, S. W., Jun 7 2017, In : Modelling and Simulation in Materials Science and Engineering. 25, 6, 065001.

Research output: Contribution to journalArticle

3 Scopus citations
2016

Colliding pulse mode-locked VECSEL

Marah, D., Laurain, A., Stolz, W., Koch, S. W., Perez, A. R., McInerney, J. & Moloney, J. V., Jul 18 2016, International Conference on Ultrafast Phenomena, UP 2016. OSA - The Optical Society

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations
2014

Systematic investigation of single- and multi-mode operation in vertical-external-cavity surface-emitting lasers

Wichmann, M., Shakfa, M. K., Scheller, M., Rahimi-Iman, A., Heinen, B., Moloney, J. V., Koch, S. W. & Koch, M., Jan 1 2014, Vertical External Cavity Surface Emitting Lasers (VECSELs) IV. SPIE, 89660N. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 8966).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations
2011

Design and optimization of VECSELs for the IR and mid-IR

Hader, J., Wang, T. L., Yarborough, J. M., Dineen, C. A., Kaneda, Y., Moloney, J. V., Kunert, B., Stolz, W. & Koch, S. W., Apr 14 2011, Vertical External Cavity Surface Emitting Lasers, VECSELs. 79190M. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 7919).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations
2012

VECSELs: Nonequilibrium effects and two-color operation

Wichmann, M., Chernikov, A., Shakfa, M. K., B̈aumner, A., Koch, M., Scheller, M., Hader, J., Moloney, J. V. & Koch, S. W., Mar 26 2012, Vertical External Cavity Surface Emitting Lasers (VECSELs) II. 82420I. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 8242).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2019
1 Scopus citations
2012

THz control of matter states: Coherent excitons beyond the rabi-splitting

Ewers, B., K̈oster, N. S., Woscholski, R., Koch, M., Chatterjee, S., Khitrova, G., Gibbs, H. M., Klettke, A. C., Kira, M. & Koch, S. W., Dec 1 2012, Quantum Electronics and Laser Science Conference, QELS 2012. (Optics InfoBase Conference Papers).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Intracavity generation of continuous wave terahertz radiation

Scheller, M., Young, A., Yarborough, J. M., Moloney, J. V., Koch, S. W., Drouet D'Aubigny, C. Y. & Walker, C., Apr 18 2012, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI. 824007. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 8240).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations
2014

Direct measurement of light–matter energy exchange inside a microcavity

Jameson, A. D., Tomaino, J. L., Lee, Y. S., Khitrova, G., Gibbs, H. M., Böttge, C. N., Klettke, A. C., Kira, M. & Koch, S. W., Jan 1 2014, In : Optica. 1, 5, p. 276-280 5 p.

Research output: Contribution to journalArticle

9 Scopus citations
2012

Quantum design strategy pushes high-power vertical-external-cavity surface-emitting lasers beyond 100 W

Wang, T. L., Heinen, B., Hader, J., Dineen, C., Sparenberg, M., Weber, A., Kunert, B., Koch, S. W., Moloney, J. V., Koch, M. & Stolz, W., Sep 1 2012, In : Laser and Photonics Reviews. 6, 5, p. L12-L14

Research output: Contribution to journalArticle

53 Scopus citations
2019

Control of the filament dynamics of 10 µm pulses via designer pulse trains

Panagiotopoulos, P., Kolesik, M., Koch, S. W., Wright, E. M., Tochitsky, S. & Moloney, J. V., Jan 1 2019, In : Journal of the Optical Society of America B: Optical Physics. 36, 10, p. G33-G39

Research output: Contribution to journalArticle

2 Scopus citations
2011

Quantum design and non-equilibrium effects in VECSELs

Bäumner, A. & Koch, S. W., Apr 14 2011, Vertical External Cavity Surface Emitting Lasers, VECSELs. 79190N. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 7919).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations
2015

Influence of non-equilibrium carrier dynamics on pulse amplification in semiconductor gain media

Böttge, C. N., Hader, J., Kilen, I., Koch, S. W. & Moloney, J. V., Jan 1 2015, Vertical External Cavity Surface Emitting Lasers (VECSELs) V. Guina, M. (ed.). SPIE, 934903. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 9349).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations
2011

Evidence of two disorder scales in Ga(AsBi)

Imhof, S., Wagner, C., Chernikov, A., Koch, M., Kolata, K., Köster, N. S., Chatterjee, S., Koch, S. W., Lu, X., Johnson, S. R., Beaton, D. A., Tiedje, T., Rubel, O. & Thränhardt, A., Apr 1 2011, In : Physica Status Solidi (B) Basic Research. 248, 4, p. 851-854 4 p.

Research output: Contribution to journalArticle

14 Scopus citations

Interaction of THz radiation with semiconductor many-body systems

Koch, S. W., Kira, M., Klettke, A. C. & Golde, D., Dec 1 2011, IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves. 6104898. (IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Power scaling and heat management in high-power VECSELs

Chatterjee, S., Chernikov, A., Herrmann, J., Scheller, M., Koch, M., Kunert, B., Stolz, W., Koch, S. W., Wang, T. L., Kaneda, Y., Yarborough, J. M., Hader, J. & Moloney, J. V., Sep 6 2011, 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011. 5942637. (2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations
2019

Megafilament in air formed by self-guided terawatt long-wavelength infrared laser

Tochitsky, S., Welch, E., Polyanskiy, M., Pogorelsky, I., Panagiotopoulos, P., Kolesik, M., Wright, E. M., Koch, S. W., Moloney, J. V., Pigeon, J. & Joshi, C., Jan 1 2019, In : Nature Photonics. 13, 1, p. 41-46 6 p.

Research output: Contribution to journalArticle

23 Scopus citations
2018

Non-perturbative THz subcycle nonlinearities: From atomically strong fields to vacuum fields

Lange, C., Langer, F., Maag, T., Bayer, A., Mootz, M., Huttner, U., Kira, M., Koch, S. W., Bougeard, D. & Huber, R., Jan 1 2018, Optical Sensors, Sensors 2018. OSA - The Optical Society, Vol. Part F110-Sensors 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2011

Monitoring the temperature distribution in high-power VECSELs

Chatterjee, S., Chernikov, A., Herrmann, J., Scheller, M., Koch, M., Kunert, B., Stolz, W., Koch, S. W., Wang, T. L., Kaneda, Y., Yarborough, J. M., Hader, J. & Moloney, J. V., Sep 6 2011, 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011. 5942598. (2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2014

Nonequilibrium and thermal effects in modelocked VECSELs

Moloney, J. V., Kilen, I., Baumner, A., Scheller, M. & Koch, S. W., Jan 1 2014, In : Optics Express. 22, 6, p. 6422-6427 6 p.

Research output: Contribution to journalArticle

24 Scopus citations
2013

Screening and gap generation in bilayer graphene

Stroucken, T., Grönqvist, J. H. & Koch, S. W., Jun 24 2013, In : Physical Review B - Condensed Matter and Materials Physics. 87, 24, 245428.

Research output: Contribution to journalArticle

11 Scopus citations
2012

Study of the two-color emission dynamics from a vertical-external-cavity surface-emitting laser

Wichmann, M., Chernikov, A., Shakfa, M. K., Koch, S. W., Scheller, M., Moloney, J. V. & Koch, M., Dec 1 2012, IRMMW-THz 2012 - 37th International Conference on Infrared, Millimeter, and Terahertz Waves. 6380308. (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations
2015

Accessing orbital angular momentum of quantum-ring excitons via directional semiconductor luminescence

Nieminen, J. V., Vänskä, O., Tittonen, I., Koch, S. W. & Kira, M., Mar 31 2015, In : New Journal of Physics. 17, p. 1-9 9 p., 033046.

Research output: Contribution to journalArticle

1 Scopus citations

Optically bright p-excitons indicating strong Coulomb coupling in transition-metal dichalcogenides

Stroucken, T. & Koch, S. W., Sep 4 2015, In : Journal of Physics Condensed Matter. 27, 34, 345003.

Research output: Contribution to journalArticle

21 Scopus citations
2014

Systematic investigation of terahertz-induced excitonic Rabi splitting

Teich, M., Wagner, M., Stehr, D., Schneider, H., Helm, M., Böttge, C. N., Klettke, A. C., Chatterjee, S., Kira, M., Koch, S. W., Khitrova, G. & Gibbs, H. M., Mar 17 2014, In : Physical Review B - Condensed Matter and Materials Physics. 89, 11, 115311.

Research output: Contribution to journalArticle

10 Scopus citations
2013

THz free-electron laser spectroscopy of magnetoexcitons in semiconductor quantum wells

Bhattacharyya, J., Zybell, S., Winnerl, S., Schneebeli, L., Böttge, C. N., Breddermann, B., Kira, M., Koch, S. W., Helm, M. & Schneider, H., Dec 1 2013, 2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013. 6665864. (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Observation of forbidden exciton transitions mediated by coulomb interactions in photoexcited semiconductor quantum wells

Rice, W. D., Kono, J., Zybell, S., Winnerl, S., Bhattacharyya, J., Schneider, H., Helm, M., Ewers, B., Chernikov, A., Koch, M., Chatterjee, S., Khitrova, G., Gibbs, H. M., Schneebeli, L., Breddermann, B., Kira, M. & Koch, S. W., Mar 26 2013, In : Physical review letters. 110, 13, 137404.

Research output: Contribution to journalArticle

23 Scopus citations
2011

Recent results of blue and green InGaN laser diodes for laser projection

Lutgen, S., Dini, D., Pietzonka, I., Tautz, S., Breidenassel, A., Lell, A., Avramescu, A., Eichler, C., Lermer, T., Müller, J., Bruederl, G., Gomez, A., Strauss, U., Scheibenzuber, W. G., Schwarz, U. T., Pasenow, B. & Koch, S., Mar 31 2011, Novel In-Plane Semiconductor Lasers X. 79530G. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 7953).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

43 Scopus citations
2014

Quantum droplets of electrons and holes

Almand-Hunter, A. E., Li, H., Cundiff, S. T., Mootz, M., Kira, M. & Koch, S. W., Mar 5 2014, In : Nature. 506, 7489, p. 471-475 5 p.

Research output: Contribution to journalArticle

73 Scopus citations
2013

Anisotropic terahertz response from a strong-field ionized electron-ion plasma

Pasenow, B., Dineen, C., Hader, J., Brio, M., Moloney, J. V., Koch, S. W., Chen, S. H., Becker, A. & Jaroń-Becker, A., Mar 20 2013, In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 87, 3, 033106.

Research output: Contribution to journalArticle

5 Scopus citations
2011

Lattice mismatched growth for mid-IR VECSELs

Balakrishnan, G., Rotter, T. J., Ahirwar, P., Clark, S. P., Patel, V., Albrecht, A., Hains, C. P., Lai, Y. Y., Wang, T. L., Yarborough, J. M., Mathine, D., Kaneda, Y., Moloney, J. V., Hader, J. & Koch, S. W., Apr 14 2011, Vertical External Cavity Surface Emitting Lasers, VECSELs. 79190G. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 7919).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations
2016

Microscopic modelling of opto-electronic properties of dilute bismide materials for the mid-IR

Hader, J., Moloney, J. V., Rubel, O., Badescu, S. C., Johnson, S. & Koch, S. W., 2016, Novel In-Plane Semiconductor Lasers XV. SPIE, Vol. 9767. 976709

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations
2014

Coherent bloch oscillations driven by ultrastrong THz excitation

Hohenleutner, M., Schubert, O., Langer, F., Urbanek, B., Lange, C., Huttner, U., Golde, D., Meier, T., Kira, M., Koch, S. W. & Huber, R., Oct 14 2014, Laser Science, LS 2014. Optical Society of America (OSA), (Laser Science, LS 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Terahertz generation by difference frequency conversion of two single-frequency VECSELs in an external resonance cavity

Scheller, M., Paul, J. R., Laurain, A., Young, A., Koch, S. W. & Moloney, J. V., Jan 1 2014, Vertical External Cavity Surface Emitting Lasers (VECSELs) IV. SPIE, 89660E. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 8966).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Quantum droplets of electrons and holes in GaAs quantum wells

Cundiff, S. T., Almand-Hunter, A. E., Li, H., Mootz, M., Kira, M. & Koch, S. W., Jan 1 2014, 19th International Conference on Ultrafast Phenomena, UP 2014. Optical Society of American (OSA), (Optics InfoBase Conference Papers).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2019

Lightwave driven valleytronic qubit flip

Borsch, M., Girodias, B. J., Steiner, J. T., Koch, S. W., Schmid, C. P., Schlauderer, S., Langer, F., Huber, R. & Kira, M., Jan 1 2019, CLEO: Applications and Technology, CLEO_AT 2019. OSA - The Optical Society, (Optics InfoBase Conference Papers; vol. Part F127-CLEO_AT 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2012

Terahertz excitation of three-level λ-type exciton- polariton modes in quantum-well microcavity

Lee, Y. S., Tomaino, J. L., Jameson, A. D., Khitrova, G., Gibbs, H. M., Klettke, A. C., Kira, M. & Koch, S. W., Dec 1 2012, Quantum Electronics and Laser Science Conference, QELS 2012. (Optics InfoBase Conference Papers).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2017

Self-Channeling of High-Power Long-Wave Infrared Pulses in Atomic Gases

Schuh, K., Kolesik, M., Wright, E. M., Moloney, J. V. & Koch, S. W., Feb 10 2017, In : Physical review letters. 118, 6, 063901.

Research output: Contribution to journalArticle

26 Scopus citations