1. Karol Krzempek.
    Sensitive mid-infrared photothermal gas detection enhanced by self-heterodyne harmonic amplification of a mode-locked fiber laser probe. Optics Express 30(17):31354–31366, 2022.

  2. Piotr Bojęś, Piotr Pokryszka, Piotr Jaworski, Fei Yu, Dakun Wu and Karol Krzempek.
    Quartz-Enhanced Photothermal Spectroscopy-Based Methane Detection in an Anti-Resonant Hollow-Core Fiber. Sensors 22(15):5504, 2022.

  3. Piotr Jaworski, Karol Krzempek, Piotr Bojęś, Dakun Wu and Fei Yu.
    Mid-IR antiresonant hollow-core fiber based chirped laser dispersion spectroscopy of ethane with parts per trillion sensitivity. Optics & Laser Technology 156:108539, 2022.

  4. Piotr Bojęś, Piotr Jaworski, Karol Krzempek, Ziemowit Malecha, Fei Yu, Dakun Wu, Paweł Kozioł, Grzegorz Dudzik, Meisong Liao and Krzysztof Abramski.
    Experimental and numerical analysis of gas flow in nodeless antiresonant hollow-core fibers for optimization of laser gas spectroscopy sensors. Optics & Laser Technology 152:108157, 2022.

  5. Matthias Germann, Adrian Hjältén, Vincent Boudon, Cyril Richard, Karol Krzempek, Arkadiusz Hudzikowski, Aleksander Głuszek, Grzegorz Soboń and Aleksandra Foltynowicz.
    A methane line list with sub-MHz accuracy in the 1250 to 1380 cm- 1 range from optical frequency comb Fourier transform spectroscopy. Journal of Quantitative Spectroscopy and Radiative Transfer 288:108252, 2022.

  6. Karol Krzempek, Piotr Jaworski, Piotr Bojęś and Paweł Kozioł.
    Photothermal gas detection using a mode-locked laser signal readout. Journal of Lightwave Technology 40(13):4436–4442, 2022.

  7. Piotr Jaworski, Karol Krzempek, Paweł Kozioł, Dakun Wu, Fei Yu, Piotr Bojęś, Grzegorz Dudzik, Meisong Liao, Jonathan Knight and Krzysztof Abramski.
    Sub parts-per-billion detection of ethane in a 30-meters long mid-IR Antiresonant Hollow-Core Fiber. Optics & Laser Technology 147:107638, 2022.

  8. Adrian Hjalten, Matthias Germann, Karol Krzempek, Arkadiusz Hudzikowski, Aleksander Gluszek, Dorota Tomaszewska, Grzegorz Sobon and Aleksandra Foltynowicz.
    Optical frequency comb Fourier transform spectroscopy of (N2O)-N-14-O-16 at 7.8 mu m. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 271, 2021.

  9. Paweł Kozioł, Piotr Jaworski, Karol Krzempek, Viktoria Hoppe, Grzegorz Dudzik, Fei Yu, Dakun Wu, Meisong Liao, Jonathan Knight and Krzysztof Abramski.
    Fabrication of microchannels in a nodeless antiresonant hollow-core fiber using femtosecond laser pulses. Sensors 21(22):7591, 2021.

  10. Karol Krzempek.
    Part-per-billion level photothermal nitric oxide detection at 5.26 µm using antiresonant hollow-core fiber-based heterodyne interferometry. Optics Express 29(20):32568–32579, 2021.

  11. Karol Krzempek, Dorota Tomaszewska, Aleksandra Foltynowicz and Grzegorz Sobon.
    Fiber-based optical frequency comb at 3.3 µm for broadband spectroscopy of hydrocarbons. Chinese Optics Letters 19(8):081406, 2021.

  12. Arkadiusz Hudzikowski, Aleksander Głuszek, Karol Krzempek and Jarosław Sotor.
    Compact, spherical mirror-based dense astigmatic-like pattern multipass cell design aided by a genetic algorithm. Optics Express 29(16):26127–26136, 2021.

  13. Karol Krzempek, Piotr Jaworski, Paweł Kozioł and Walter Belardi.
    Antiresonant hollow core fiber-assisted photothermal spectroscopy of nitric oxide at 5.26 µm with parts-per-billion sensitivity. Sensors and Actuators B: Chemical 345:130374, 2021.

  14. Adrian Hjältén, Matthias Germann, Karol Krzempek, Arkadiusz Hudzikowski, Aleksander Głuszek, Dorota Tomaszewska, Grzegorz Soboń and Aleksandra Foltynowicz.
    Optical frequency comb Fourier transform spectroscopy of 14N216O at 7.8 µm. Journal of Quantitative Spectroscopy and Radiative Transfer 271:107734, 2021.

  15. Grzegorz Dudzik, Karol Krzempek, Krzysztof Abramski and Gerard Wysocki.
    Solid-state laser intra-cavity photothermal gas sensor. Sensors and Actuators B: Chemical 328:129072, 2021.

  16. Piotr Jaworski, Paweł Kozioł, Karol Krzempek, Dakun Wu, Fei Yu, Piotr Bojęś, Grzegorz Dudzik, Meisong Liao, Krzysztof Abramski and Jonathan Knight.
    Antiresonant hollow-core fiber-based dual gas sensor for detection of methane and carbon dioxide in the near-and mid-infrared regions. Sensors 20(14):3813, 2020.

  17. Piotr Jaworski, Karol Krzempek, Grzegorz Dudzik, Pier J Sazio and Walter Belardi.
    Nitrous oxide detection at 5.26 µm with a compound glass antiresonant hollow-core optical fiber. Optics letters 45(6):1326–1329, 2020.

  18. Karol Krzempek, Dorota Tomaszewska, Aleksander Głuszek, Tadeusz Martynkien, Paweł Mergo, Jarosław Sotor, Aleksandra Foltynowicz and Grzegorz Soboń.
    Stabilized all-fiber source for generation of tunable broadband fCEO-free mid-IR frequency comb in the 7–9 µm range. Optics Express 27(26):37435–37445, 2019.

  19. Karol Krzempek, Krzysztof Abramski and Michal Nikodem.
    Kagome hollow core fiber-based mid-infrared dispersion spectroscopy of methane at sub-ppm levels. Sensors 19(15):3352, 2019.

  20. Karol Krzempek.
    A review of photothermal detection techniques for gas sensing applications. Applied Sciences 9(14):2826, 2019.

  21. Karol Krzempek, Grzegorz Dudzik and Krzysztof Abramski.
    Photothermal spectroscopy of CO 2 in an intracavity mode-locked fiber laser configuration. Optics express 26(22):28861–28871, 2018.

  22. Grzegorz Dudzik, Karol Krzempek and Krzysztof M Abramski.
    Photothermal-induced frequency stabilization of a solid-state monolithic Nd: YVO4 laser. Laser Physics Letters 15(10):105002, 2018.

  23. Michał Nikodem, Karol Krzempek, Grzegorz Dudzik and Krzysztof Abramski.
    Hollow core fiber-assisted absorption spectroscopy of methane at 3.4 µm. Optics Express 26(17):21843–21848, 2018.

  24. Karol Krzempek, Arkadiusz Hudzikowski, Aleksander Głuszek, Grzegorz Dudzik, Krzysztof Abramski, Gerard Wysocki and Michał Nikodem.
    Multi-pass cell-assisted photoacoustic/photothermal spectroscopy of gases using quantum cascade laser excitation and heterodyne interferometric signal detection. Applied Physics B 124:1–6, 2018.

  25. Karol Krzempek, Grzegorz Dudzik, Krzysztof Abramski, Gerard Wysocki, Piotr Jaworski and Michał Nikodem.
    Heterodyne interferometric signal retrieval in photoacoustic spectroscopy. Optics express 26(2):1125–1132, 2018.

  26. Michal Nikodem, Karol Krzempek, Dorota Stachowiak and Gerard Wysocki.
    Quantum cascade laser-based analyzer for hydrogen sulfide detection at sub-parts-per-million levels. Optical Engineering 57(1):011019–011019, 2018.

  27. Karol Krzempek, Dorota Tomaszewska and Krzysztof M Abramski.
    Dissipative soliton resonance mode-locked all-polarization-maintaining double clad Er: Yb fiber laser. Optics express 25(21):24853–24860, 2017.

  28. K Krzempek, G Dudzik, A Hudzikowski, A Gluszek and K Abramski.
    Highly-efficient fully-fiberized mid-infrared differential frequency generation source and its application to laser spectroscopy. Opto-Electronics Review 25(4):269–274, 2017.

  29. K Krzempek, KM Abramski and M Nikodem.
    All-fiber mid-infrared difference frequency generation source and its application to molecular dispersion spectroscopy. Laser Physics Letters 14(9):095702, 2017.

  30. K Krzempek and K Abramski.
    6.5 μJ pulses from a compact dissipative soliton resonance mode-locked erbium–ytterbium double clad (DC) laser. Laser Physics Letters 14(1):015101, 2016.

  31. Karol Krzempek, Jaroslaw Sotor and Krzysztof Abramski.
    Compact all-fiber figure-9 dissipative soliton resonance mode-locked double-clad Er: Yb laser. Optics letters 41(21):4995–4998, 2016.

  32. Karol Krzempek and Krzysztof Abramski.
    Dissipative soliton resonance mode-locked double clad Er: Yb laser at different values of anomalous dispersion. Optics Express 24(20):22379–22386, 2016.

  33. Karol Krzempek, Grzegorz Sobon, Jaroslaw Sotor and Krzysztof Abramski.
    A dual-wavelength amplifier that enables the simultaneous chirped-pulse amplification of femtosecond 1562 nm pulses and continuous wave 1064 nm radiation for applications in difference frequency generation. Laser Physics Letters 13(10):105107, 2016.

  34. Grzegorz Sobon, Karol Krzempek, Jan Tarka and Jaroslaw Sotor.
    Compact, all-PM fiber-CPA system based on a chirped volume Bragg grating. Laser Physics 26(1):015106, 2015.

  35. Karol Krzempek, Grzegorz Sobon, Jaroslaw Sotor and Krzysztof M Abramski.
    Fully-integrated dual-wavelength all-fiber source for mode-locked square-shaped mid-IR pulse generation via DFG in PPLN. Optics Express 23(25):32080–32086, 2015.

  36. Karol Krzempek.
    Dissipative soliton resonances in all-fiber Er-Yb double clad figure-8 laser. Optics Express 23(24):30651–30656, 2015.

  37. Karol Krzempek, Grzegorz Sobon, Jaroslaw Sotor, Grzegorz Dudzik and Krzysztof M Abramski.
    Widely tunable, all-polarization maintaining, monolithic mid-infrared radiation source based on differential frequency generation in PPLN crystal. Laser Physics Letters 11(10):105103, 2014.

  38. Michal Nikodem, Karol Krzempek, Renata Karwat, Grzegorz Dudzik, Krzysztof Abramski and Gerard Wysocki.
    Chirped laser dispersion spectroscopy with differential frequency generation source. Optics Letters 39(15):4420–4423, 2014.

  39. M Nikodem, K Krzempek, K Zygadlo, G Dudzik, A Waz, K Abramski and K Komorowska.
    Intracavity polarization control in mode-locked Er-doped fibre lasers using liquid crystals. Opto-Electronics Review 22(2):113–117, 2014.

  40. Grzegorz Sobon, Mariusz Klimczak, Jaroslaw Sotor, Karol Krzempek, Dariusz Pysz, Ryszard Stepien, Tadeusz Martynkien, Krzysztof M Abramski and Ryszard Buczynski.
    Infrared supercontinuum generation in soft-glass photonic crystal fibers pumped at 1560 nm. Optical Materials Express 4(1):7–15, 2014.

  41. G Sobon, J Sotor, I Pasternak, K Krzempek, W Strupinski and KM Abramski.
    A tunable, linearly polarized Er-fiber laser mode-locked by graphene/PMMA composite. Laser Physics 23(12):125101, 2013.

  42. Karol Krzempek, Grzegorz Sobon and Krzysztof M Abramski.
    DFG-based mid-IR generation using a compact dual-wavelength all-fiber amplifier for laser spectroscopy applications. Optics express 21(17):20023–20031, 2013.

  43. Karol Krzempek, Grzegorz Sobon, Pawel Kaczmarek and Krzysztof M Abramski.
    A sub-100 fs stretched-pulse 205 MHz repetition rate passively mode-locked Er-doped all-fiber laser. Laser Physics Letters 10(10):105103, 2013.

  44. Karol Krzempek, Mohammad Jahjah, Rafał Lewicki, Przemysław Stefański, Stephen So, David Thomazy and Frank K Tittel.
    CW DFB RT diode laser-based sensor for trace-gas detection of ethane using a novel compact multipass gas absorption cell. Applied Physics B 112:461–465, 2013.

  45. G Sobon, K Krzempek, P Kaczmarek and KM Abramski.
    An eye-safe, high-repetition rate single-mode femtosecond chirped pulse amplification system at 1560 nm. Laser Physics 23(7):075104, 2013.

  46. G Sobon, J Sotor, I Pasternak, W Strupinski, K Krzempek, P Kaczmarek and KM Abramski.
    Chirped pulse amplification of a femtosecond Er-doped fiber laser mode-locked by a graphene saturable absorber. Laser Physics Letters 10(3):035104, 2013.

  1. Piotr Bojes, Piotr Pokryszka, Piotr Jaworski, Yufei Ma, Pawel Koziol, Grzegorz Dudzik, Fei Yu, Dakun Wu and Karol Krzempek.
    Methane and acetylene detection in an antiresonant hollow-core fiber using quartz-enhanced photothermal spectroscopy technique. In Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVI. 2022, PC1222901.

  2. Piotr Jaworski, Karol Krzempek, Piotr Bojes, Dakun Wu and Fei Yu.
    Mid-IR antiresonant hollow-core fiber assisted molecular dispersion spectroscopy of ethane with parts-per-trillion by volume sensitivity. In Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVI 12229. 2022.

  3. Matthias Germann, Adrian Hjältén, Vincent Boudon, Cyril Richard, Karol Krzempek, Arkadiusz Hudzikowski, Aleksander Głuszek, Grzegorz Soboń and Aleksandra Foltynowicz.
    An Accurate Methane Line List in the 7.2–8.0 µm Range from Comb-Based Fourier Transform Spectroscopy. In CLEO: Science and Innovations. 2022, SM3F–6.

  4. Karol Krzempek, Piotr Jaworski, Piotr Bojęś, Paweł Kozioł, Grzegorz Dudzik, Viktoria Hoppe and Walter Belardi.
    Antiresonant hollow core fiber-based photothermal interferometry of Nitric Oxide at 5.26 µm with parts-per-billion sensitivity. In CLEO: Science and Innovations. 2022, SF3F–7.

  5. Karol Krzempek, Dorota Tomaszewska-Rolla, Aleksander Głuszek, Arkadiusz Hudzikowski, Mikołaj Krakowski, Adrian Hjältén, Matthias Germann, Aleksandra Foltynowicz and Grzegorz Soboń.
    Compact fiber-based mid-infrared frequency comb sources. In Mid-Infrared Coherent Sources. 2022, MW6C–1.

  6. Piotr Jaworski, Karol Krzempek, Pawel E Koziol, Piotr Bojęś, Grzegorz Dudzik, Dakun Wu, Fei Yu, Meisong Liao and Krzysztof M Abramski.
    Wavelength modulation spectroscopy of ethane at sub parts-per-billion-by-volume level using a 30-meters long mid-IR antiresonant hollow-core fiber. In Optical Sensing and Detection VII. 2022.

  7. Paweł Kozioł, Piotr Jaworski, Karol Krzempek, Viktoria Hoppe, Grzegorz Dudzik, Fei Yu, Dakun Wu, Meisong Liao and Krzysztof Abramski.
    Laser processing of microchannels in an antiresonant hollow-core fiber. In Advanced Solid State Lasers. 2021, JM3A–58.

  8. Aleksandra Foltynowicz, Grzegorz Sobon, Dorota Tomaszewska-Rolla, Adrian Hjältén, Matthias Germann, Karol Krzempek, Robert Lindberg and Valdas Pasiskevicius.
    High-resolution Comb-based Fourier Transform Spectroscopy In The 3.3 µm And 7.8 µm Range. In International Symposium on Molecular Spectroscopy. 2021.

  9. Grzegorz Dudzik, Karol Krzempek, Piotr Jaworski and Paweł Kozioł.
    Solid-State Laser Intra-Cavity Photothermal Sensor of Nitric Oxide in the mid-IR Region. In Optical Sensors. 2021, JW2A–29.

  10. Piotr Jaworski, Grzegorz Dudzik, Paweł Kozioł, Pier J Sazio, Walter Belardi and Karol Krzempek.
    Borosilicate Antiresonant Hollow-Core Fiber-assisted spectroscopy of nitric oxide in the Mid-IR. In Optics and Photonics for Sensing the Environment. 2021, JW2A–6.

  11. Karol Krzempek, Paweł Kozioł, Piotr Jaworski, Grzegorz Dudzik, Viktoria Hoppe and Walter Belardi.
    Detection of Nitric Oxide at 5.26 µm using antiresonant hollow core fiber-assisted photothermal interferometry. In Optics and Photonics for Sensing the Environment. 2021, JW2A–17.

  12. Adrian Hjältén, Matthias Germann, Ibrahim Sadiek, Chuang Lu, Francisco Senna Vieira, Karol Krzempek, Arkadiusz Hudzikowski, Aleksander Głuszek, Dorota Tomaszewska, Michael Stuhr and others.
    Fourier transform spectroscopy using difference frequency generation comb sources at 3.3 µm and 7.8 µm. In Hyperspectral Imaging and Sounding of the Environment. 2021, JTu4D–3.

  13. Piotr Bojęś, Piotr Jaworski, Karol Krzempek, Ziemowit Malecha, Paweł Kozioł, Grzegorz Dudzik, Fei Yu, Meisong Liao, Dakun Wu and Krzysztof Abramski.
    Simulations of pressure-driven gas flow in a nodeless antiresonant hollow-core fiber for laser absorption spectroscopy applications. In Advanced Sensor Systems and Applications XI 11901. 2021, 1190119.

  14. Matthias Germann, Adrian Hjältén, Karol Krzempek, Arkadiusz Hudzikowski, Aleksander Głuszek, Dorota Tomaszewska, Grzegorz Soboń and Aleksandra Foltynowicz.
    Frequency Comb Fourier Transform Spectroscopy at 8 µm Using a Compact Difference Frequency Generation Source. In European Quantum Electronics Conference. 2021, ed_1_4.

  15. Karol Krzempek, Paweł Kozioł, Piotr Jaworski, Grzegorz Dudzik and Walter Belardi.
    Antiresonant Hollow Core Fiber-assisted Photothermal Spectroscopy of Nitric Oxide at 5.26 µm. In The European Conference on Lasers and Electro-Optics. 2021, ch_p_1.

  16. Piotr Bojęś, Karol Krzempek, Piotr Jaworski, Paweł Kozioł, Ziemowit Malecha, Grzegorz Dudzik, Fei Yu, Dakun Wu, Karol Malecha, Meisong Liao and others.
    Modelling of pressure-driven gas flow in a nodeless Anti-Resonant Hollow Core Fiber for laser absorption spectroscopy. In The European Conference on Lasers and Electro-Optics. 2021, ch_12_4.

  17. Adrian Hjältén, Matthias Germann, Karol Krzempek, Arkadiusz Hudzikowski, Aleksander Głuszek, Dorota Tomaszewska, Grzegorz Soboń and Aleksandra Foltynowicz.
    Precision Measurements of 14 N 2 16 O Using a Comb-Based Fourier Transform Spectrometer at 7.8 µm. In 2021 Conference on Lasers and Electro-Optics (CLEO). 2021, 1–2.

  18. Karol Krzempek, Pawel Kozioł, Piotr Jaworski, Grzegorz Dudzik and Walter Belardi.
    Antiresonant hollow core fiber-based photothermal gas sensor of nitric oxide at 5.26 µm. In Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XV 11826. 2021, 118260J.

  19. Grzegorz Dudzik, Natalia Stalmach, Karol Krzempek, Piotr Jaworski, Paweł Kozioł and Walter Belardi.
    Antiresonant hollow core fiber-assisted differential absorption spectroscopy of gas molecules. In Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XV 11826. 2021, 118260K.

  20. Piotr Jaworski, Karol Krzempek, Pawel Kozioł, Grzegorz Dudzik, Dakun Wu, Fei Yu, Meisong Liao and Krzysztof Abramski.
    Antiresonant hollow-core fiber-assisted mid-IR hydrocarbons gas sensor. In Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XV 11826. 2021, 118260I.

  21. Piotr Jaworski, Grzegorz Dudzik, Pier J Sazio, Walter Belardi and Karol Krzempek.
    Laser-based nitric oxide detection at 5.26 µm using Antiresonant Hollow-Core Fiber. In Optical Fiber Communication Conference. 2021, Th1A–13.

  22. Paweł E Kozioł, Piotr Jaworski, Fei Yu, Karol Krzempek, Dakun Wu, Grzegorz Dudzik, Viktoria Hoppe, Meisong Liao and Krzysztof M Abramski.
    Femtosecond laser processing of microchannels in antiresonant hollow-core fiber for laser-based gas sensing in the mid-infrared. In Micro-structured and Specialty Optical Fibres VII 11773. 2021, 117730A.

  23. Karol Kraempek, Dorota Tomaszewska, Aleksander Gluszek, Arkadiusz Hudzikowski, Tadeusz Martynkien, Pawel Mergo, Jaroslaw Sotor, Aleksandra Foltynowicz and Grzegora Soboń.
    Compact 6.5-9 pm Frequency Comb Source for Fourier Transform Spectroscopy. In Optics and Photonics for Sensing the Environment. 2020, EM1C–2.

  24. Karol Krzempek, Dorota Tomaszewska, Aleksander Głuszek, Arkadiusz Hudzikowski, Tadeusz Martynkien, Paweł Mergo, Jarosław Sotor, Aleksandra Foltynowicz and Grzegorz Soboń.
    Mid-infrared frequency comb covering the 6.5–9 µm range with active output power stabilization. In Mid-Infrared Coherent Sources. 2020, MW3C–3.

  25. Paweł Kozioł, Piotr Jaworski, Fei Yu, Karol Krzempek, Dakun Wu, Grzegorz Dudzik, Meisong Liao and Krzysztof Abramski.
    Microdrilling of channels in antiresonant hollow-core fiber using femtosecond laser pulses. In Laser Applications Conference. 2020, JTh2A–3.

  26. Piotr Jaworski, Karol Krzempek, Fei Yu, Paweł Kozioł, Grzegorz Dudzik, Dakun Wu, Piotr Bojęś, Pier J Sazio, Walter Belardi, Meisong Liao and others.
    Antiresonant Hollow-Core Fibers for efficient gas molecules detection in the Near-and Mid-Infrared spectral bands. In Specialty Optical Fibers. 2020, SoW1H–3.

  27. Grzegorz Dudzik, Karol Krzempek, Piotr Jaworski, Paweł Kozioł, Piotr Bojęś and Krzysztof M Abramski.
    Photothermal Gas Sensing Inside a Monolithic Diode-Pumped Solid-State Laser Resonator. In Optical Sensors. 2020, SM1E–6.

  28. Piotr Jaworski, Fei Yu, Piotr Bojęś, Dakun Wu, Paweł Kozioł, Grzegorz Dudzik, Krzysztof Abramski, Meisong Liao and Karol Krzempek.
    Dual-band Antiresonant Hollow-Core Fiber for Multiple Gas Detection in the Near-and Mid-IR. In Optical Sensors. 2020, SM2B–3.

  29. Piotr Jaworski, Fei Yu, Piotr Bojęś, Dakun Wu, Paweł Kozioł, Grzegorz Dudzik, Krzysztof Abramski, Meisong Liao and Karol Krzempek.
    Antiresonant Hollow-Core Fiber for Multiple Gas Detection in the Mid-IR. In CLEO: Science and Innovations. 2020, JTu2G–33.

  30. Grzegorz Dudzik, Karol Krzempek and Krzysztof M Abramski.
    Comparison of Nd: YVO4-based monolithic microchip laser resonators for single-frequency stable, CW diode-pumped laser sources. In The European Conference on Lasers and Electro-Optics. 2019, ca_p_23.

  31. Arkadiusz Hudzikowski, Aleksander Głuszek, Karol Krzempek and Jarosław Sotor.
    Adjustable optical path length compact spherical mirrors multipass cell optimized with genetic algorithm. In The European Conference on Lasers and Electro-Optics. 2019, ch_p_25.

  32. Arkadiusz Hudzikowski, Aleksander Głuszek, Karol Krzempek and Jarosław Sotor.
    Spherical mirrors based compact multipass cell with dense astigmatic-like spot pattern. In CLEO: Applications and Technology. 2019, AF2K–8.

  33. Karol Krzempek, Grzegorz Dudzik, Michał Nikodem, Gerard Wysocki and Krzysztof Abramski.
    Photothermal detection of NO molecules using a 5.2 µm quantum cascade laser and a simple fiber-based interferometer. In The European Conference on Lasers and Electro-Optics. 2017, CH_P_27.

  34. Grzegorz Dudzik, Karol Krzempek and Krzysztof M Abramski.
    Photothermal-induced frequency stabilization of Nd: YVO4/Er-Glass solid state microchip laser with auxiliary 1.55 µm signal. In The European Conference on Lasers and Electro-Optics. 2017, CA_P_35.

  35. Karol Krzempek, Michal Nikodem and Krzysztof Abramski.
    Photo-thermal effects in gases as a method for concentration measurements. In CLEO: Science and Innovations. 2015, SM1O–7.

  36. Michal Nikodem, Karol Krzempek and Krzysztof Abramski.
    Chirped laser dispersion spectroscopy in dual side-band frequency-shifted-carrier arrangement. In Laser Applications to Chemical, Security and Environmental Analysis. 2014, LW4D–2.

  37. Frank K Tittel, Rafał Lewicki, Mohammad Jahjah, Briana Foxworth, Yufei Ma, Lei Dong, Robert Griffin, Karol Krzempek, Przemyslaw Stefanski and Jan Tarka.
    Mid-infrared laser based gas sensor technologies for environmental monitoring, medical diagnostics, industrial and security applications. In Terahertz and Mid Infrared Radiation: Detection of Explosives and CBRN (Using Terahertz). 2014, 153–165.

  38. Jaroslaw Sotor, Grzegorz Soboń, Iwona Pasternak, Karol Krzempek, Grzegorz Dudzik, Aleksandra Krajewska, Wlodek Strupinski and Krzysztof M Abramski.
    Dual-wavelength fiber mode-locked laser based on graphene saturable absorber. In Fiber Lasers XI: Technology, Systems, and Applications 8961. 2014, 434–439.

  39. G Dudzik, J Sotor, K Krzempek, G Soboń and KM Abramski.
    Single-frequency, fully integrated, miniature DPSS laser based on monolithic resonator. In Solid State Lasers XXIII: Technology and Devices 8959. 2014, 243–250.

  40. Grzegorz Soboń, Mariusz Klimczak, Jaroslaw Sotor, Karol Krzempek, Dariusz Pysz, Ryszard Stępień, Tadeusz Martynkien, Grzegorz Dudzik, Krzysztof M Abramski and Ryszard Buczynski.
    Mid-infrared supercontinuum generation using lead-bismuth-gallium-oxide glass-based photonic crystal fibers pumped at 1560 nm. In Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIII 8964. 2014, 139–146.

  41. Karol Krzempek, Grzegorz Soboń, Grzegorz Dudzik, Jaroslaw Sotor and Krzysztof M Abramski.
    Difference frequency generation of Mid-IR radiation in PPLN crystals using a dual-wavelength all-fiber amplifier. In Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIII 8964. 2014, 256–263.

  42. Jaroslaw Sotor, Grzegorz Sobon, Karol Krzempek and Krzysztof M Abramski.
    Er-doped fiber laser mode-locked by mechanically exfoliated Sb2Te3 saturable absorber. In Nonlinear Optics. 2013, NW4A–02.

  43. M Nikodem, K Krzempek, G Plant, K Abramski and Gerard Wysocki.
    Methane sensing at 3.4 µm using chirped laser dispersion spectroscopy with DFG source. In 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC. 2013, 1–1.

  44. Jaroslaw Sotor, Grzegorz Dudzik, Grzegorz Sobon, Karol Krzempek and Krzysztof M Abramski.
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