No, use a proper IR receiver IC, they do all the demodulation for you and give you a nice clean (low frequency) pulse train to decipher, you don't want to see the carrier.
From there you can use various methods to read the data, such as:
Digital storage scope.
Logic analyser (such as this:
https://www.banggood.com/LHT00SU1-V...C-SPI-CAN-Uart-p-988565.html?cur_warehouse=CN)
Input on sound card, and audio recording software (such as Audacity).
Write a microcontroller program to read and analyse it.
Write a PC program to read/analyse it.
Historically I used an old DOS laptop to do it, and wrote a Turbo Pascal program to sample it via the parallel port. More recently, I've used the Logic Analyser function of a PicKit2 - which while limited in memory has enough to do what's needed.