Smartphone laser beam spatial profiler.

A simple, low-cost, portable, smartphone-based laser beam profiler for characterizing laser beam profiles is reported. The beam profiler utilizes a phosphor silica glass plate to convert UV light into visible (green) light that can be directly imaged onto an existing smartphone CMOS chip and analyzed using a customized app. 3D printing enables the ready fabrication of the instrument package. The beam's diameter, shape, divergence, beam quality factor, and output power are measured for two UV lasers: a CW 244 nm frequency-doubled Ar ion laser and a pulsed 193 nm ArF exciplex laser. The availability of specialized phosphor converters can extend the instrument from the UV to the near infrared and beyond, and the smartphone platform extends the Internet of Things to map laser beam profiles simultaneously in different locations.

[1]  Michael K. Giles,et al.  Linear Systems Approach To Fiber Characterization Using Beam Profile Measurements , 1984, Optics & Photonics.

[2]  J. Arnaud,et al.  Technique for fast measurement of gaussian laser beam parameters. , 1971, Applied optics.

[3]  Byoung‐Yong Chang.  Smartphone-based Chemistry Instrumentation: Digitization of Colorimetric Measurements , 2012 .

[4]  Amarjyoti Choudhury,et al.  Evanescent Wave Coupled Spectroscopic Sensing Using Smartphone , 2014, IEEE Photonics Technology Letters.

[5]  K. Ratzlaff,et al.  Laser beam spatial profile analysis using a two‐dimensional photodiode array , 1983 .

[6]  Thomas Kaiser,et al.  Real-time determination of laser beam quality by modal decomposition. , 2011, Optics express.

[7]  Parviz Parvin,et al.  Excimer laser beam profile recording based on electrochemical etched polycarbonate , 2008 .

[8]  Damien Igoe,et al.  Characterization of a Smartphone Camera's Response to Ultraviolet A Radiation , 2013, Photochemistry and photobiology.

[9]  Nicolas Chevrollier,et al.  Data and Image Transfer Using Mobile Phones to Strengthen Microscopy-Based Diagnostic Services in Low and Middle Income Country Laboratories , 2011, PloS one.

[10]  Amy L. Gryshuk,et al.  Cell-Phone-Based Platform for Biomedical Device Development and Education Applications , 2011, PloS one.

[11]  Sarun Sumriddetchkajorn,et al.  Mobile-platform based colorimeter for monitoring chlorine concentration in water , 2014 .

[12]  Abbas Jamalipour,et al.  Early warning smartphone diagnostics for water security and analysis using real-time pH mapping , 2015 .

[13]  Tracked Changes. Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios , 2022 .

[14]  Daniel Flamm,et al.  Beam-quality measurements using a spatial light modulator. , 2012, Optics letters.

[15]  W. M. Steen,et al.  Measurement of the temporal and spatial power distribution of a high-power CO2 laser beam , 1982 .

[16]  Abbas Jamalipour,et al.  Combined "dual" absorption and fluorescence smartphone spectrometers. , 2015, Optics letters.

[17]  Sarun Sumriddetchkajorn,et al.  Cell phone-based two-dimensional spectral analysis for banana ripeness estimation , 2012 .

[18]  Thomas Kaiser,et al.  Fast M2 measurement for fiber beams based on modal analysis. , 2012, Applied optics.

[19]  Anthony E. Siegman,et al.  New developments in laser resonators , 1990, Photonics West - Lasers and Applications in Science and Engineering.

[20]  Yasin Kaya,et al.  Counting Molecules with a Mobile Phone Camera Using Plasmonic Enhancement , 2014 .

[21]  A. Jamalipour,et al.  Lab-in-a-Phone: Smartphone-Based Portable Fluorometer for pH Measurements of Environmental Water , 2014, IEEE Sensors Journal.

[22]  Valentina Ye. Zavalova,et al.  Beam quality measurements with Shack-Hartmann wavefront sensor and M2-sensor: comparison of two methods , 2007, SPIE LASE.

[23]  Benjamin Speich,et al.  Mobile phone microscopy for the diagnosis of soil-transmitted helminth infections: a proof-of-concept study. , 2013, The American journal of tropical medicine and hygiene.

[24]  Laser beam distribution in the focal region. , 1978, Applied optics.

[25]  Adolf Giesen,et al.  High-resolution knife-edge laser beam profiling , 1997 .