Python implementation of acoustic levitation and related topics - GitHub

Python package to simulate output of phased arrays. Super fast calculations with Huygens model implementation for OpenCL/GPU - GiHub


Database of Ultrasonic Transducer Radiation Characteristics - zenodo

User data from the Point-and-Shake user studies (Freeman et al., CHI 2018) - zenodo

Our Research PAPERS


  1. Sampling Strategy for Ultrasonic Mid-Air Haptics - William Frier, Dario Pittera, Damien Ablart, Marianna Obrist, Sriram Subramanian - CHI 2019 - pdf

  2. Three-in-one: Levitation, Parametric Audio, and Mid-Air Haptic Feedback - Gözel Shakeri, Euan Freeman, Carl Andersson, William Frier, Michele Iodice, Benjamin Long, Orestis Georgiou - CHI 2019 - pdf

  3. Enhancing Physical Objects with Actuated Levitating Particles - Euan Freeman, Asier Marzo, Praxitelis B. Kourtelos, Julie R. Williamson, and Stephen Brewster - PerDis 2019 - pdf

  4. User Engagement for Mid-Air Haptic Interactions with Digital Signage - Hannah Limerick, Richard Hayden, David Beattie, Orestis Georgiou, and Jörg Müller - PerDis 2019 - pdf

  5. Measurement-Based Modeling of Higher-Order Non-Linearities of the Parametric Loudspeake - Carl Andersson and Jens Ahrens - DAGA 2019 - pdf

  6. Mid-air Haptic Textures from Graphics - David Beattie, Orestis Georgiou, Adam Harwood, Rory Clark, Benjamin Long, and Tom Carter - IEEE World Haptics 2019 - pdf

  7. Using Ultrasonic Mid-air Haptic Patterns in Multi-Modal User Experiences - Damien Ablart, William Frier, Hannah Limerick, Orestis Georgiou, and Marianna Obrist - IEEE HAVE 2019 - pdf


  1. Point-and-Shake: Selecting from Levitating Object Displays - Euan Freeman, Julie Williamson, Sriram Subramanian ,and Stephen Brewster - CHI 2018 - pdf

  2. Touchless Haptic Feedback for VR Rhythm Games - Orestis Georgiou, Craig Jeffrey, Ziyuan Chen, Bao Xiao Tong, Shing Hei Chan,  Boyin Yang, Adam Harwood, and Tom Carter - IEEE VR 2018 - pdf

  3. Pulsed Schlieren Imaging of Ultrasonic Haptics and Levitation using a Phased Array - Michele Iodice, Orestis Georgiou, James Wilcox, and Ben Long - ICSV 2018 - pdf

  4. Touchless Tactile Displays for Digital Signage: Mid-air Haptics meets Large Screens - Loic Corenthy, Marcello Giordano, Richard Hayden, Daniel Griffiths, Craig Jeffrey, Hannah, Limerick, Orestis Georgiou, Tom Carter, Jörg Müller, Sriram Subramanian -  CHI 2018 - pdf

  5. Using Spatiotemporal Modulation to Draw Tactile Patterns in Mid-air - William Frier, Damien Ablart, Jamie Chilles, Benjamin Long, Marcello Giordano, Marianna Obrist, Sriram Subramanian - Eurohaptics 2018 - pdf

  6. A Method for Simultaneous Creation of an Acoustic Trap and a Quiet Zone - Carl Andersson and Jens Ahrens - IEEE SAM 2018 - pdf

  7. Levitating Particle Displays with Interactive Voxels - Euan Freeman, Julie R. Williamson, Praxitelis Kourtelos, and Stephen Brewster - PerDis 2018 - pdf

  8. Fibonnacci Spiral Arranged Ultrasound Phased Array for Mid-Air Haptics - Adam Price and Benjamin Long - IEEE IUS 2018 - pdf

  9. LeviCursor: Dexterous Interaction with a Levitating Object - Bachynskyi, Myroslav, Viktorija Paneva, and Jörg Müller - ISS 2018 - pdf

  10. SoundBender: Dynamic Acoustic Control Behind Obstacles - Mohd Adili Norasikin, Diego Martinez Plasencia, Spyros Polychronopoulos, Gianluca Memoli, Yutaka Tokuda, and Sriram Subramanian - UIST 2018 - pdf


  1. Textured Surfaces for Ultrasound Haptic Displays - Euan Freeman, Ross Anderson, Julie Williamson, Graham Wilson and Stephen Brewster - ICMI 2017 - pdf

  2. Levitate: Interaction with Floating Particle Displays - Julie R. Williamson, Euan Freeman, and Stephen Brewster - PerDis 2017 - pdf

  3. TastyFloats: A Contactless Food Delivery System - Chi Thanh Vi, Asier Marzo, Damien Ablart, Gianluca Memoli, Sriram Subramanian, Bruce Drinkwater, and Marianna Obrist - ISS 2017 - pdf

  4. Floating Widgets: Interaction with Acoustically-Levitated Widgets - Euan Freeman, Ross Anderson, Carl Anderson, Julie Williamson, and Stephen Brewster - ISS 2017 - pdf