Ilmo Räisänen Email & Phone Number

Jyväskylä, Fi

Jyväskylä, Central Finland, Finland

I supervise Bachelor students' laboratory experiments in physics courses. The experiments that I have supervised are- Rotating coordinate system- Damped oscillation- Transformer- Hall effect- Thermal electron emission- Vapor pressure and enthalpy of vaporization- Electron diffraction- Spectrometer, lattice and prism- Energy band gap of germanium- X-ray fluorescence- Photoelectric effect- Franck-Hertz experiment- Radioactivity- Geiger-Müller tube- Excited-state lifetime

Jyväskylä, Central Finland, Finland

I try to finish my PhD as soon as possible.

Jyväskylä, Finland

The topic of my PhD thesis is electron cooling and barrier properties of submicron tunnel junctions. My supervisor is professor Ilari Maasilta.My job includes- Fabrication of tunnel junctions in a cleanroom. The fabrication includes resist spinning, ultraviolet lithography, reactive plasma etching, wet etching, electron beam lithography, and electron beam evaporation of metals in an ultra-high vacuum (pressure under 10^-7 mbar).- Electrical measurements at low temperatures using liquid nitrogen, liquid helium, measurement dipstick, He-3/He-4 dilution refrigerator, AC and DC voltage sources, current and voltage preamplifiers, lock-in amplifiers, multimeters, and LabVIEW based measurement software.- Analysis of experimental data using Origin and MATLAB software, as well as simulations.- Writing publications and funding applications.- Giving presentations.- Instructing undergraduate students in their summer projects.My first publication can be found here:http://iopscience.iop.org/article/10.1088/1742-6596/969/1/012090/metaDuring my PhD studies, I have been privileged to receive the following research grants, which means I have collected a great percentage of my funding by myself:- 2019 Vilho, Yrjö and Kalle Väisälä Fund, scholarship of 25 000 €, working period 12.8.2020–11.8.2021 - 2018 Vilho, Yrjö and Kalle Väisälä Fund, scholarship of 25 000 €, working period 12.8.2019–11.8.2020 - 2017 Vilho, Yrjö and Kalle Väisälä Fund, scholarship of 25 000 €, working period 12.8.2018–11.8.2019 - 2017 Finnish Cultural Foundation Central Fund, scholarship of 24 000 €, working period 12.8.2017–11.8.2018 - 2016 Finnish Cultural Foundation Central Finland regional Fund, scholarship of 24 000 €, working period 12.8.2016–11.8.2017 - 2016 Finnish Foundation for Technology Promotion, incentive grant of 5 000 €More information about our research is available here:https://www.jyu.fi/fysiikka/en/research/material/nanophys/thermal/thermal.html

Jyväskylä, Central Finland, Finland

I took care of exercise sessions (4 hours per week) and I examined students' homework in first-year physics courses:1. Foundations of mechanics 2. Vibrations and thermodynamics

I am a private landlord, i.e., I have been leasing my first flat in Espoo since August 2015 and my second flat in Jyväskylä since November 2023. I have had long-term tenants in my flats. I am a member of Finnish Landlord Association. I have made all flat advertisements and tenancy agreements by myself. In December 2022, I had my Espoo flat renovated. I requested bids from several renovation companies, chose the best company, made the renovation contract and looked after that I get what I had ordered.

Espoo, Finland

I worked in the research group of academy professor Jukka Pekola and my instructor was M.Sc. Anna Feshchenko.I fabricated 5 - 20 nm thick chromium (Cr) resistors in the cleanroom of Micronova Nanofabrication Centre to measure heat transport in nanostructures. I studied the resistances of chromium resistors with respect to their thicknesses. My job included hands-on work with resist spinning, electron beam lithography, electron beam evaporation of metals, optical and scanning electron microscopy, wire bonding as well as electrical measurements with a probe station.

Espoo, Finland

I worked in the research group of academy professor Jukka Pekola and my instructor was Dr. Olli-Pentti Saira.I did my Master's thesis about a lumped element Josephson parametric amplifier (JPA) which operates at frequencies below 1 GHz. My thesis presents the structure of the JPA in detail and reports its experimental characterization (reflection coefficient, gain, bandwidth and noise temperature) at 100 mK temperature. In addition, I performed non-linear circuit simulations using APLAC software which reproduces well the main features of the experimental characterization.

Espoo, Finland

I worked in the research group of professor Jukka Pekola and my instructor was M.Sc. Simone Gasparinetti. I developed a radio frequency (RF) setup for thermometry based on a normal metal - insulator - superconductor (NIS) tunnel junction. I measured the scattering parameters of one cryogenic circulator and the gain and the noise temperature of two cryogenic amplifiers. Measurements were performed at room temperature, 77 K and 10 K at microwave frequencies between 0.5 GHz and 2.5 GHz. I wrote my second special assignment of 10 ECTS points about this summer job topic.

Espoo, Finland

I supervised Bachelor students’ laboratory experiments in a physics course and I examined their reports. I taught 3.5 hours per week.

Espoo, Finland

I worked in the fusion research group of professor Mathias Groth and my supervisor was Dr. Markus Airila from VTT Technical Research Centre of Finland.I simulated migration and mixing of beryllium, tungsten and carbon on plasma-facing surfaces in JET and ITER fusion reactors using a sophisticated computer code called ERO. I compared the new surface model of ERO to its older surface model. I used MATLAB for analysis and plotting of results. I wrote my first special assignment of 10 ECTS points about this summer job topic.

Espoo, Uusimaa, Finland

I worked in the Brain Research Unit of Low Temperature Laboratory. My boss was Doc. Simo Vanni and my instructor was PhD Irtiza Gilani.I wrote MATLAB programs in order to simulate random walk of protons in human brain. Using my random walk programs, I performed Monte Carlo simulations for nuclear magnetic resonance (NMR) signal formation during magnetic resonance imaging (MRI). I wrote my bachelor's thesis about this topic.

Espoo, Uusimaa, Finland

I worked in the Brain Research Unit of Low Temperature Laboratory. My boss was Doc. Simo Vanni and my instructor was PhD Irtiza Gilani.I wrote MATLAB programs in order to simulate random walk of protons in human brain. Using my random walk programs, I performed Monte Carlo simulations for nuclear magnetic resonance (NMR) signal formation during magnetic resonance imaging (MRI). I wrote my bachelor's thesis about this topic.

Helsinki, Uusimaa, Finland

I attached radio frequency identification (RFID) tags into books and magazines at the Observatory of Helsinki. I placed the books and the magazines into boxes and I did bookkeeping 8-16 hours per week.

Master’S Degree, Engineering Physics, Pass With Distinction, Grade Point Average 4.06/5

Activities and Societies: Teepakki, scouting club of Aalto University students, chairman of the board 2012 and 2013; Ristin kilta.

Doctoral Student, Experimental Nanophysics

The topic of my PhD thesis is electron cooling and barrier properties of submicron tunnel junctions. My supervisor is professor Ilari.

Bachelor’S Degree, Engineering Physics, Pass With Honours, Grade Point Average 4.12/5

Activities and Societies: Teepakki, scouting club of Aalto University students, chairman of the board 2012 and 2013; Ristin kilta.

Physics, Statistics

Activities and Societies: NTNUI Langrenn, cross-country skiing group of university students; Trondheim kristelige studentlag (TKS).

Matriculation Examination, 9.9 (Grade Point Average In General Upper Secondary Education Certificate)

My grades in matriculation examination: - mother tongue (Finnish): magna cum laude approbatur (third highest grade) - second national.