Andreas Jechow

Domain/Position
Phone
+49 (0)30 64181 909
Fax
+49 (0)30 64181 663

Müggelseedamm 310, 12587 Berlin

Profile
Expertise

Light pollution, Ecological light pollution

Imaging, Remote Sensing

Physics, Optics, Lasers, Spectroscopy, Quantum Optics, Atomic Physics

Light sources, Light propagation, Light matter interaction, Light detection

CV

since   2015 PostDoc IGB, Light Pollution, Remote Sensing

since   2015 Guest Scientist, GFZ Potsdam, Remote Sensing

2013 - 2018  Guest Lecturer, University of Applied Sciences, Brandenburg

2012 - 2014  PostDoc, Photonics, University of Potsdam

2010 - 2012  PostDoc, Centre for Quantum Dynamics, Griffith University, Brisbane, Australia

2009            PhD (Dr.rer.nat.), Experimental Physics, Photonics, University of Potsdam

2006            Master (M.Eng.), Photonics, University of Applied Sciences, Brandenburg

2004            Diploma (FH), Engineering Physics, University of Applied Sciences, Brandenburg

Awards

2014                       Early Career Researcher Award Berlin/Brandenburg in „Nanomicroscopy“ by Leibniz Kolleg Potsdam

2010                       Griffith University Postdoctoral Fellowship (>150,000 AUD)

2009                       Runner-up, Photonics 21 European Student Innovation Award

2006                       Best Master Student University of Applied Sciences, Brandenburg 

CONNECT

Connectivity and synchronisation of lake ecosystems in space and time
Contact person
Stella A. Berger
Sabine Wollrab
Department
(Dept. 1) Ecohydrology
(Dept. 3) Experimental Limnology
Start
05/2018
End
04/2021
Topic

ILES

Skyglow, the diffuse illumination of the night sky by artificial light, has never before been experienced during evolutionary history. Together with another feature of global change – the brownification of lakes caused by humic substances – skyglow disrupts the current light conditions in lake ecosystems. We will elucidate the ecological consequences of these phenomena and the mechanisms underlying them.
Contact person
Mark Gessner
Franz Hölker
Department
(Dept. 1) Ecohydrology
(Dept. 2) Ecosystem Research
(Dept. 3) Experimental Limnology
(Dept. 4) Biology and Ecology of Fishes
(Dept. 5) Ecophysiology and Aquaculture
Start
07/2015
End
06/2018
Topic

MARS

Our surface and groundwaters struggle with a variety of different pressures, like water shortage, flow regulation, straightening or sediment and nutrient loading. The project MARS analyses how the combination of these stressors impacts aquatic ecosystems and their functions.
Contact person
Markus Venohr
Department
(Dept. 1) Ecohydrology
(Dept. 3) Experimental Limnology
(Dept. 4) Biology and Ecology of Fishes
Start
03/2014
End
02/2018
Topic

Loss of the Night

International research network on the impact of artificial illumination on nature and society
Contact person
Franz Hölker
Department
(Dept. 1) Ecohydrology
(Dept. 4) Biology and Ecology of Fishes
(Dept. 5) Ecophysiology and Aquaculture
Start
01/2010
End
12/2013
Topic

2019

2018

Franz Hölker; Andreas Jechow; Sibylle Schroer; Mark O. Gessner

Nächtliches Licht und Lichtverschmutzung in und um Gewässer

Handbuch angewandte Limnologie / hrsg. von Michael Hupfer ; Helmut Fischer. - Weinheim : Wiley, 2018. - 34. Erg.-Lfg. 1/18. - Kapitel V-6.2. - S. 1-26

Andreas Hänel; Thomas Posch; Salvador J. Ribas; Martin Aube; Dan Duriscoe; Andreas Jechow; Zoltan Kollath; Dorien E. Lolkema; Chadwick Moore; Norbert Schmidt; Henk Spoelstra; Günther Wuchterl; Christopher C. M. Kyba

Measuring night sky brightness: methods and challenges

Journal of Quantitative Spectroscopy & Radiative Transfer. - 205(2018), S. 278-290

2017

Salvador J. Ribas; Martin Aube; Salvador Bara; Constantinos Bouroussis; Ramon Canal-Domingo; Brian Espey; Andreas Hänel; Andreas Jechow; Zoltan Kollath; Guillem Marti; Pol Massana; Wim Schmidt; Henk Spoelstra; Günther Wuchterl; Jaime Zamorano; Christopher C. M. Kyba. Deutsches GeoForschungsZentrum

Report of the 2016 STARS4ALL/LoNNe intercomparison campaign

2016

report authors: Salvador J. Ribas; Martin Aube; Salvador Bara; Constantinos Bouroussis; Ramon Canal-Domingo; Brian Espey; Andreas Hänel; Andreas Jechow; Zoltan Kollath; Guillem Marti; Pol Massana; Wim Schmidt; Henk Spoelstra; Günther Wuchterl; Jaime Zamorano; Christopher C. M. Kyba

Report of the 2016 STARS4ALL/LoNNe intercomparison campaign

full list of publications

Key publications

Light pollution

C.C.M. Kyba, T. Kuester, A. Sánchez de Miguel, K. Baugh, A. Jechow, F. Hölker, J. Bennie, C.D. Elvidge, K.J. Gastan and L. Guanter, "Artificially lit surface of Earth at night increasing in radiance and extent," Science Advances 3, e1701528 (2017)

A. Jechow, Z. Kolláth, S.J. Ribas, H. Spoelstra, F. Hölker and C.C.M. Kyba, "Imaging and mapping the impact of clouds on skyglow with all-sky photometry," Scientific Reports 7, 6741 (2017)

Quantum bio-photonics

A. Jechow, M. Seefeldt, H. Kurzke, A. Heuer and R. Menzel, "Enhanced two-photon excited fluorescence from imaging agents by utilizing thermal light," Nature Photonics 7, 973 (2013)

A. Jechow, A. Heuer, and R. Menzel, "High brightness, tunable biphoton source at 976 nm for quantum spectroscopy," Optics Express 16, 13439-13449 (2008)

Quantum optics

A. Jechow, B.G. Norton, S. Händel, V. Blūms, E.W. Streed, D. Kielpinski, "Controllable optical phase shift over one radian from a single isolated atom," Physical Review Letters 110, 113605 (2013)

E.W. Streed, A. Jechow, B.G. Norton, and D. Kielpinski, "Absorption imaging of a single atom," Nature Communications 3, 933 (2012)

Laser light sources

A. Jechow, R. Menzel, K. Paschke and G. Erbert, "Blue-green light generation using high brilliance edge emitting diode lasers," Laser and Photonics Reviews 4, 633-655 (2010)

A. Jechow, M. Lichtner, R. Menzel, M. Radziunas, D. Skoczowsky, A. G. Vladimirov, "Stripe-array diode-laser in an off-axis external cavity: Theory and experiment," Optics Express 17, 19599-19604 (2009)

A. Jechow, V. Raab and R. Menzel, "High cw power using an external cavity for spectral beam combining of diode laser-bar emission," Applied Optics 45, 3545 – 3547 (2006)

Book chapter

1.    B. G. Norton, E. W. Streed, A. Jechow, S. Händel, V. Blūms, D. Kielpinski, "High-resolution fluorescence and absorption imaging of single trapped ions," in Ion Traps for Tommorrow’s Application, M. Knoop, I. Marzoli, G. Morigi, eds. (IOS press 2015)

Peer reviewed

1.    A. Jechow, S.J. Ribas, R. Canal-Domingo, F. Hölker, Z. Kolláth and C.C.M. Kyba, " Tracking the dynamics of skyglow with differential photometry using a digital camera with fisheye lens," Journal of Quantitative Spectroscopy and Radiative Transfer 209, 212 (2018)

2.    C.C.M. Kyba, T. Kuester, A. Sánchez de Miguel, K. Baugh, A. Jechow, F. Hölker, J. Bennie, C.D. Elvidge, K.J. Gastan and L. Guanter, "Artificially lit surface of Earth at night increasing in radiance and extent," Science Advances 3, e1701528 (2017)

3.    A. Hänel, T. Posch, S.J. Ribas, M. Aubé, D. Duriscoe, A. Jechow, Z. Kolláth, D.E. Lolkema, C. Moore, N. Schmidt, H. Spoelstra, G. Wuchterl and C.C.M. Kyba, "Measuring night sky brightness: methods and challenges," Journal of Quantitative Spectroscopy and Radiative Transfer 205, 278 (2017)

4.    J. Kiethe, A. Heuer, and A. Jechow, "Second-order coherence properties of amplified spontaneous emission from a high-power tapered superluminescent diode," Laser Physics Letters 14, 086201 (2017)

5.    A. Jechow, Z. Kolláth, S.J. Ribas, H. Spoelstra, F. Hölker and C.C.M. Kyba, "Imaging and mapping the impact of clouds on skyglow with all-sky photometry," Scientific Reports 7, 6741 (2017)

6.    A. Jechow, A. Lerner, Z. Kolláth, A. Hänel, N. Shashar, F. Hölker and C.C.M. Kyba, "Measuring Light Pollution with Fisheye Lens Imagery from A Moving Boat – A Proof of Concept," International Journal of Sustainable Lighting, 19, 15-25 (2017)

7.    H. Kurzke, J. Kiethe, A. Heuer, and A. Jechow, " Frequency doubling of incoherent light from a superluminescent diode in a periodically poled lithium niobate waveguide crystal," Laser Physics Letters 14, 055402 (2017)

8.    A. Jechow, F. Hölker, Z. Kolláth, M.O. Gessner and C.C.M. Kyba, "Evaluating the summer night sky brightness at a research field site on Lake Stechlin in northeastern Germany," Journal of Quantitative Spectroscopy and Radiative Transfer, 181, 24 (2016)

9.    M. Niebuhr, C. Zink, A. Jechow, A. Heuer, L. B. Glebov and R. Menzel, "Mode stabilization of a laterally structured broad area diode laser using an external volume Bragg grating," Optics Express 23, 12394 (2015)

10.    C. Zink, M. Niebuhr, A. Jechow, A. Heuer and R. Menzel, "External cavity enhanced broad area diode laser with on-chip transverse Bragg grating," Optics Express 22, 14108 (2014)

11.    C. Zink, N. Werner, A. Jechow, A. Heuer and R. Menzel, "Multi-wavelength operation of a single broad area diode laser by spectral beam combining," IEEE Photonics Technology Letters 26, 253 (2014)

12.    A. Jechow, M. Seefeldt, H. Kurzke, A. Heuer and R. Menzel, "Enhanced two-photon excited fluorescence from imaging agents by utilizing thermal light," Nature Photonics 7, 973 (2013)

13.    A. Jechow, B.G. Norton, S. Händel, V. Blūms, E.W. Streed, D. Kielpinski, "Controllable optical phase shift over one radian from a single isolated atom," Physical Review Letters 110, 113605 (2013)

14.    E.W. Streed, A. Jechow, B.G. Norton, and D. Kielpinski, "Absorption imaging of a single atom," Nature Communications 3, 933 (2012)    

15.    A. Heuer, A. Sagahti, A. Jechow, D. Skoczowsky, and R. Menzel, "Multi-Wavelength, High Spatial Brightness Operation of a Phase-Locked Stripe-Array Diode Laser," Laser Physics 22, 160 (2012)

16.    E. W. Streed, A. Jechow, B. G. Norton and D. Kielpinski, "Single-atom absorption imaging," Proc. SPIE 8272, 827216 (2012)

17.    B.G. Norton, E.W. Streed, M.J. Petrasiunas, A. Jechow, and D. Kielpinski "Millikelvin Spatial Thermometry of Trapped Ions," New Journal of Physics 13, 113022 (2011)

18.    A. Jechow, E. W. Streed, B. G. Norton, M. J. Petrasiunas and D. Kielpinski, "Wavelength-Scale Imaging of Trapped Ions using a Phase Fresnel lens," Optics Letters 36, 1371 (2011)

19.    E.W. Streed, B.G. Norton, A. Jechow, T.J. Weinhold and D. Kielpinski, "Imaging of Trapped Ions with a Microfabricated Optic for Quantum Information Processing," Physical Review Letters 106, 010502 (2011)

20.    D. Skoczowsky, A. Jechow, R. Menzel, K. Paschke and G. Erbert, "Second harmonic generation using a semiconductor tapered amplifier in a coupled ring resonator geometry," Optics Letters 35, 232-234 (2010)

21.    A. Jechow, R. Menzel, K. Paschke and G. Erbert, "Blue-green light generation using high brilliance edge emitting diode lasers," Laser and Photonics Reviews 4, 633-655 (2010)    

22.    D. Skoczowsky, A. Jechow, H. Stürmer, T. Poßner, J. Sacher and R. Menzel, "Quasi monolithic ring resonator for efficient frequency doubling of an external cavity diode laser," Applied Physics B 98, 751-757 (2010)

23.    A. Jechow, D. Skoczowsky, M. Lichtner, M. Radziunas and R. Menzel, "High-brightness emission from stripe-array broad area diode lasers operated in off-axis external cavities," Proc. SPIE 7583, 758312 (2010)

24.    D. Skoczowsky, A. Jechow, H. Stürmer, T. Poßner, S. Stry, J. Sacher and R. Menzel, "Monolithic ring resonator with PPLN crystal for efficient cw SHG of 976 nm emitted by a diode laser," Proc. SPIE 7197, 71970K (2009)

25.    A. Jechow, S. McNeil, C. Kaleva, D. Skoczowsky and Ralf Menzel, "Highly efficient single-pass blue-light generation at 488 nm using a PPKTP waveguide crystal and high-brightness diode lasers," Proc. SPIE 7197, 719707 (2009)

26.    A. Jechow, M. Lichtner, R. Menzel, M. Radziunas, D. Skoczowsky, A. G. Vladimirov, "Stripe-array diode-laser in an off-axis external cavity: Theory and experiment," Optics Express 17, 19599-19604 (2009)

27.    A. Jechow, A. Heuer, and R. Menzel, "High brightness, tunable biphoton source at 976 nm for quantum spectroscopy," Optics Express 16, 13439-13449 (2008)   28.    A. Jechow, V. Raab and R. Menzel, "Tunable 6.8 W narrow bandwidth emission from a single-stripe continuous-wave broad-area laser diode in a simple external cavity," Applied Optics 47, 1447-1450 (2008)

29.    A. Jechow and R. Menzel, "Efficient blue light generation by frequency doubling of a broad-area diode laser in a compact external cavity," Applied Physics B 89, 507-511 (2007)

30.    A. Jechow, M. Schedel, S. Stry, J. Sacher and R. Menzel, "Highly efficient single-pass frequency doubling of a continuous-wave distributed feedback laser diode using a PPLN waveguide crystal at 488 nm," Optics Letters 32, 3035-3037 (2007)

31.    D. Skoczowsky, A. Heuer, A. Jechow and R. Menzel, "Generation of 25 ps pulses by self-induced mode locking of a single broad area diode laser with 300mW average output power," Optics Communications 279, 341–345 (2007)

32.    A. Jechow, V. Raab, R. Menzel, M. Cenkier, S. Stry and J. Sacher, "1 W tunable near diffraction limited light from a broad area laser diode in an external cavity with a line width of 1.7 MHz," Optics Communications 277, 161–165 (2007)

33.    A. Jechow, D. Skoczowsky and R. Menzel, "100 mW high efficient single pass SHG at 488 nm of a single broad area laser diode with external cavity using a PPLN waveguide crystal," Optics Express 15, 6976-6981 (2007)

34.    A. Jechow, V. Raab and R. Menzel, "Tunable diffraction-limited light at 488 nm by single-pass frequency doubling of a broad area diode laser," Applied Optics 46, 943-946 (2007)

35.    A. Jechow, V. Raab and R. Menzel, "High cw power using an external cavity for spectral beam combining of diode laser-bar emission," Applied Optics 45, 3545 – 3547 (2006)

 

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