Juho Karhu
Juho Karhu
Vahvistettu sähköpostiosoite verkkotunnuksessa helsinki.fi - Kotisivu
Nimike
Viittaukset
Viittaukset
Vuosi
Fully stabilized mid-infrared frequency comb for high-precision molecular spectroscopy
M Vainio, J Karhu
Optics express 25 (4), 4190-4200, 2017
282017
Broadband photoacoustic spectroscopy of CH414 with a high-power mid-infrared optical frequency comb
J Karhu, T Tomberg, FS Vieira, G Genoud, V Hänninen, M Vainio, ...
Optics letters 44 (5), 1142-1145, 2019
172019
Double resonant absorption measurement of acetylene symmetric vibrational states probed with cavity ring down spectroscopy
J Karhu, J Nauta, M Vainio, M Metsälä, S Hoekstra, L Halonen
The Journal of chemical physics 144 (24), 244201, 2016
112016
Frequency comb assisted two-photon vibrational spectroscopy
J Karhu, M Vainio, M Metsälä, L Halonen
Optics express 25 (5), 4688-4699, 2017
102017
Step-modulated decay cavity ring-down detection for double resonance spectroscopy
J Karhu, K Lehmann, M Vainio, M Metsälä, L Halonen
Optics express 26 (22), 29086-29098, 2018
72018
Simple method for mid-infrared optical frequency comb generation with dynamic offset frequency tuning
M Roiz, K Kumar, J Karhu, M Vainio
APL Photonics 6 (2), 026103, 2021
42021
Sub-ppb detection of benzene using cantilever-enhanced photoacoustic spectroscopy with a long-wavelength infrared quantum cascade laser
J Karhu, H Philip, A Baranov, R Teissier, T Hieta
Optics Letters 45 (21), 5962-5965, 2020
32020
High-resolution analysis of the ν3 band of radiocarbon methane 14CH4
S Larnimaa, L Halonen, J Karhu, T Tomberg, M Metsälä, G Genoud, ...
Chemical Physics Letters 750, 137488, 2020
12020
Part-per-billion level radiocarbon dioxide detection using photoacoustic spectroscopy
M Fatima, T Hausmaninger, T Tomberg, T Hieta, J Karhu, M Vainio, ...
2020 Conference on Lasers and Electro-Optics (CLEO), 1-2, 2020
12020
Frequency stability and selectivity of a singly resonant continuous-wave optical parametric oscillator
J Karhu
Helsingfors universitet, 2014
12014
LED-Based Photoacoustic NO2 Sensor with a Sub-ppb Detection Limit
J Karhu, T Hieta, F Manoocheri, M Vainio, E Ikonen
Acs sensors, 2021
2021
Cantilever-enhanced photoacoustic measurement of light-absorbing aerosols
J Karhu, J Kuula, A Virkkula, H Timonen, M Vainio, T Hieta
arXiv preprint arXiv:2106.12389, 2021
2021
Low-Threshold Fully-Stabilized Mid-Infrared Frequency Comb Generation
M Roiz, JY Lai, J Karhu, M Vainio
2021 Conference on Lasers and Electro-Optics Europe & European Quantum …, 2021
2021
Fully-Stabilized Mid-Infrared Optical Frequency Comb with Dynamic Offset Frequency Tuning
M Roiz, K Kumar, J Karhu, M Vainio
CLEO: Science and Innovations, STh2L. 2, 2021
2021
Radiocarbon dioxide detection using cantilever-enhanced photoacoustic spectroscopy
M Fatima, T Hausmaninger, T Tomberg, J Karhu, M Vainio, T Hieta, ...
Optics Letters 46 (9), 2083-2086, 2021
2021
Mid-infrared frequency comb with 25 pJ threshold via CW-seeded optical parametric generation in nonlinear waveguide
M Roiz, JY Lai, J Karhu, M Vainio
arXiv preprint arXiv:2104.05318, 2021
2021
Mid-infrared frequency comb with 25 pJ threshold via CW-seeded optical
M Roiz, JY Lai, J Karhu, M Vainio
2021
Cantilever-Enhanced Photoacoustic Spectroscopy of Radioactive Methane
S Larnimaa, J Karhu, T Tomberg, G Genoud, T Hieta, M Metsälä, ...
2020 Conference on Lasers and Electro-Optics (CLEO), 1-2, 2020
2020
Photoacoustic optical frequency comb spectroscopy of radioactive methane in the mid-infrared region
J Karhu, T Tomberg, FS Vieira, G Genoud, V Hänninen, M Vainio, ...
2019 Conference on Lasers and Electro-Optics Europe & European Quantum …, 2019
2019
Applications of Mid-infrared Frequency Combs for Linear and Nonlinear Vibrational Spectroscopy
J Karhu
Helsingin yliopisto, 2019
2019
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Artikkelit 1–20